RevSpace - Gebruikersbijdragen [nl]

IKEA LED lamp hacking workshop

2026-10-04T14:54:57Z

Oops: Updates from having run the workshop on 2026-10-04

== Introduction ==

This page is intended to give step-by-step instructions for modifying an IKEA Skaftsarv LED light to replace the original control board with a programmable ESP32C3 board, then installing software on the board and configuring it to make it possible to control the light across wifi.

'''NB:''' This is a simplification, reordering and in some places expansion of the directions given at Simone Luconi's GitHub repo: [https://github.com/simoneluconi/SKAFTSARV-to-WLED SKAFTSARV to WLED]. This version has been organized for use in a drop-in workshop at RevSpace as part of the [[Weekend van de Wetenschap]].

== Warning ==
These modifications will not only void your warranty, they also change the device from being a tested and certified piece of equipment to being a do-it-yourself project. Though you can glue it back together again, this version will not have been tested as well as the original version. If you find it running too hot, '''unplug it immediately'''.

== Tools ==
You will need
* small Phillips head screwdriver
* spudgers
* cheap flat-head screwdriver for prying
* sharp knife and/or Dremel tool for cutting the case
* soldering iron
* solder
* hot glue

== Components ==
* 1 IKEA Skaftsarv LED light
* 1 ESP32C3 mini development board

These two items may be available from the RevBank as a kit.

== Step 1: Dismantle the light ==

=== Snap off outside translucent cover ===
This will likely require use of spudgers. The outside translucent cover is glued in place.

- If you squeeze the two long sides of the light together, the flexing may open a gap you can fit a spudger into.
- If you apply a little isopropyl alcohol to the ends this may weaken the adhesion of the glue which holds the ends in place.

=== Unscrew inner diffuser panel ===
This should be done with a fine-head Phillips screwdriver. Keep the screws to reattach this assembly later.

=== Snap out original control PCB ===
This should be done with a cheap prying tool. The original control board is held in place by a clip which is glued in place. The clip must be broken to release it.

If you cut the clip on one side with a knife you may be able to slip the board out without breaking the clip, which makes it possible to out the board and the buttons back in place.
[[File:Disassembled Skaftsarv with esp32c3 installed.png|400px]]

=== ''Optional'' Cut (with knife and/or dremel) slot for USB-C port ===
The replacement control board will stick its USB port out the hole you cut.

This hole should cut from the black plastic in the end of the light far from where the original control board was, but on the other side (away from the LED strip).

If you out it at the same end as the original control board it will be blocked by part of the frame for screws going in.

== Step 2: Desoldering and soldering ==

=== Desoldering ===
Use a soldering iron the detach the wires from the original control board.

'''NB''' ''Optional'': The original [https://github.com/simoneluconi/SKAFTSARV-to-WLED SKAFTSARV to WLED] instructions suggest a way of keeping the original buttons working by desoldering the chip from the original control board and then wiring contact points on the control board to the ESP32C3, including two additional points which are connected to GPIO 0 and GPIO 1; this is more technically challenging and is not included in this set of instructions.

=== Soldering ===

'''NB''' ''Optional'': If you have cut a hole to allow access to the new control board once the light is reassembled, you will need to extend the white, black and brown wires by about 8cm each, by soldering on extension wires. The two original white wires and the two original black wires can be joined at this extension point. Do not use the same colour wire for this; ensure you can keep track of which is still the "white" wire and which is still the "black" wire.

Use heat shrink wrap to protect the joints from short circuits in the case.

Solder the two '''white''' wires to the tab marked '''5V'''.

Solder the two '''black''' wires to the tab marked '''G'''.

Solder the '''brown''' wire to marked '''2'''.

[[File:Wiring of ESP32C3.png|400px]]
== Step 3: Flashing ==

''Before you reassemble the light'', connect the new control board using its USB-C port to a computer.

On the computer, upload the new firmware to the control board using the 'esptool' command.

=== For WLED ===

For a wifi-enabled LED light you can control from your computer or phone, use the WLED binary, available from https://kno.wled.ge

esptool write-flash 0x10000 ./WLED_16.0.1_ESP32-C3.bin

If WLED has successfully flashed, you should be able to plug in the light using the power cable to a USB-charger and it will turn orange. Follow instructions on the WLED website for configuration and start exploring!

=== For PowerLightNG ===

For the light to function as a Power Light, giving a graphic representation of power generation in the Netherlands, download the firmware from the project's Codeberg website: https://codeberg.org/rmartinnielsen/PowerLightNG/releases

The PowerLightNG firmware is still in early development stages. You should probably only install this if:
* You are very patient and interested and willing to debug it or reprogram it yourself
* You have cut a hole so you will be able to access the new control board's USB-C port to reflash it.

esptool write-flash 0x10000 ./PowerLightNG-esp32c3-0.1.0.bin

If PowerLightNG firmware has installed correctly, it should boot in AP (Access Point) mode. Plug it in, connect to your new device, configure it to connect to your wifi, and restart it.

Once the PowerLightNG is on a working wifi, it should boot (with a sequence of lights turning on), then flash the first LED a few times as it downloads the data from a server, and then show a representation of power generation in the Netherlands.

It will update its data every ten minutes.

== Step 4: Reassembly ==

Once you are confident of the wiring of your modified light, reassemble it.

=== Control board ===

Ensure the rubber button covers are still in place to keep dust out of the light.

If your new control board does not extend its USB port out of the case, you can leave it unattached within the space of the light. Keep it on the side of the light '''away''' from the LEDs, which generate a lot of heat.

'''Optional''' If you have cut a hole for access to the USB port of the new control board, this is when you can glue it into place. Put a row of hot glue around the black plastic of the hole you have cut and push the control board into place. Ensure that the outer edge of the USB-C port is flush with outside of the case, so that you can still attach the stand to position the light upright.

=== Diffuser ===
Reattach the diffuser panel using the screws. It may take some fiddling to re-seat the led strip. You may want to use hot glue to stick it back into place.

=== Translucent outer panel ===
This can be held in place with elastic bands or sticky tape, or you can use hot glue to seal it back in place.

IKEA LED lamp hacking workshop

2026-09-30T20:14:48Z

Oops: Added photos showing disassembly and correct wiring.

== Introduction ==

This page is intended to give step-by-step instructions for modifying an IKEA Skaftsarv LED light to replace the original control board with a programmable ESP32C3 board, then installing software on the board and configuring it to make it possible to control the light across wifi.

'''NB:''' This is a simplification, reordering and in some places expansion of the directions given at Simone Luconi's GitHub repo: [https://github.com/simoneluconi/SKAFTSARV-to-WLED SKAFTSARV to WLED]. This version has been organized for use in a drop-in workshop at RevSpace as part of the [[Weekend van de Wetenschap]].

== Warning ==
These modifications will not only void your warranty, they also change the device from being a tested and certified piece of equipment to being a do-it-yourself project. Though you can glue it back together again, this version will not have been tested as well as the original version. If you find it running too hot, '''unplug it immediately'''.

== Tools ==
You will need
* small Phillips head screwdriver
* spudgers
* cheap flat-head screwdriver for prying
* sharp knife and/or Dremel tool for cutting the case
* soldering iron
* solder
* hot glue

== Components ==
* 1 IKEA Skaftsarv LED light
* 1 ESP32C3 mini development board

These two items may be available from the RevBank as a kit.

== Step 1: Dismantle the light ==

=== Snap off outside translucent cover ===
This will likely require use of spudgers. The outside translucent cover is glued in place
=== Unscrew inner diffuser panel ===
This should be done with a fine-head Phillips screwdriver. Keep the screws to reattach this assembly later.
=== Snap out original control PCB ===
This should be done with a cheap prying tool. The original control board is held in place by a clip which is glued in place. The clip must be broken to release it.

[[File:Disassembled Skaftsarv with esp32c3 installed.png|400px]]

=== ''Optional'' Cut (with knife and/or dremel) slot for USB-C port ===
The replacement control board will stick its USB port out the hole you cut.

This hole should cut from the black plastic in the end of the light close to where the original control board was, but on the other side (away from the LED strip).

== Step 2: Desoldering and soldering ==

=== Desoldering ===
Use a soldering iron the detach the wires from the original control board.

'''NB''' ''Optional'': The original [https://github.com/simoneluconi/SKAFTSARV-to-WLED SKAFTSARV to WLED] instructions suggest a way of keeping the original buttons working by desoldering the chip from the original control board and then wiring contact points on the control board to the ESP32C3, including two additional points which are connected to GPIO 0 and GPIO 1; this is more technically challenging and is not included in this set of instructions.

=== Soldering ===

'''NB''' ''Optional'': If you have cut a hole to allow access to the new control board once the light is reassembled, you will need to extend the fine white and black wires by about 4cm each, by soldering on extension wires. Do not use the same colour wire for this; ensure you can keep track of which is still the "white" wire and which is still the "black" wire.

Solder the two '''white''' wires to the tab marked '''5V'''.

Solder the two '''black''' wires to the tab marked '''G'''.

Solder the '''brown''' wire to marked '''2'''.

[[File:Wiring of ESP32C3.png|400px]]
== Step 3: Flashing ==

''Before you reassemble the light'', connect the new control board using its USB-C port to a computer.

On the computer, upload the new firmware to the control board using the 'esptool' command.

=== For WLED ===

For a wifi-enabled LED light you can control from your computer or phone, use the WLED binary, available from https://kno.wled.ge

esptool write-flash 0x10000 ./WLED_16.0.1_ESP32-C3.bin

If WLED has successfully flashed, you should be able to plug in the light using the power cable to a USB-charger and it will turn orange. Follow instructions on the WLED website for configuration and start exploring!

=== For PowerLightNG ===

For the light to function as a Power Light, giving a graphic representation of power generation in the Netherlands, download the firmware from the project's Codeberg website: https://codeberg.org/rmartinnielsen/PowerLightNG/releases

The PowerLightNG firmware is still in early development stages. You should probably only install this if:
* You are very patient and interested and willing to debug it or reprogram it yourself
* You have cut a hole so you will be able to access the new control board's USB-C port to reflash it.

esptool write-flash 0x10000 ./PowerLightNG-esp32c3-0.1.0.bin

If PowerLightNG firmware has installed correctly, it should boot in AP (Access Point) mode. Plug it in, connect to your new device, configure it to connect to your wifi, and restart it.

Once the PowerLightNG is on a working wifi, it should boot (with a sequence of lights turning on), then flash the first LED a few times as it downloads the data from a server, and then show a representation of power generation in the Netherlands.

It will update its data every ten minutes.

== Step 4: Reassembly ==

Once you are confident of the wiring of your modified light, reassemble it.

=== Control board ===

Ensure the rubber button covers are still in place to keep dust out of the light.

If your new control board does not extend its USB port out of the case, you can leave it unattached within the space of the light. Keep it on the side of the light '''away''' from the LEDs, which generate a lot of heat.

'''Optional''' If you have cut a hole for access to the USB port of the new control board, this is when you can glue it into place. Put a row of hot glue around the black plastic of the hole you have cut and push the control board into place. Ensure that the outer edge of the USB-C port is flush with outside of the case, so that you can still attach the stand to position the light upright.

=== Diffuser ===
Reattach the diffuser panel using the screws. It may take some fiddling to re-seat the led strip. You may want to use hot glue to stick it back into place.

=== Translucent outer panel ===
This can be held in place with elastic bands or sticky tape, or you can use hot glue to seal it back in place.

Bestand:Wiring of ESP32C3.png

2026-09-30T20:12:58Z

Oops: Bestand is geüpload met MsUpload

Bestand is geüpload met MsUpload

Bestand:Disassembled Skaftsarv with esp32c3 installed.png

2026-09-30T20:12:57Z

Oops: Bestand is geüpload met MsUpload

Bestand is geüpload met MsUpload

IKEA LED lamp hacking workshop

2026-09-30T19:58:45Z

Oops:

== Introduction ==

This page is intended to give step-by-step instructions for modifying an IKEA Skaftsarv LED light to replace the original control board with a programmable ESP32C3 board, then installing software on the board and configuring it to make it possible to control the light across wifi.

'''NB:''' This is a simplification, reordering and in some places expansion of the directions given at Simone Luconi's GitHub repo: [https://github.com/simoneluconi/SKAFTSARV-to-WLED SKAFTSARV to WLED]. This version has been organized for use in a drop-in workshop at RevSpace as part of the [[Weekend van de Wetenschap]].

== Warning ==
These modifications will not only void your warranty, they also change the device from being a tested and certified piece of equipment to being a do-it-yourself project. Though you can glue it back together again, this version will not have been tested as well as the original version. If you find it running too hot, '''unplug it immediately'''.

== Tools ==
You will need
* small Phillips head screwdriver
* spudgers
* cheap flat-head screwdriver for prying
* sharp knife and/or Dremel tool for cutting the case
* soldering iron
* solder
* hot glue

== Components ==
* 1 IKEA Skaftsarv LED light
* 1 ESP32C3 mini development board

These two items may be available from the RevBank as a kit.

== Step 1: Dismantle the light ==

=== Snap off outside translucent cover ===
This will likely require use of spudgers. The outside translucent cover is glued in place
=== Unscrew inner diffuser panel ===
This should be done with a fine-head Phillips screwdriver. Keep the screws to reattach this assembly later.
=== Snap out original control PCB ===
This should be done with a cheap prying tool. The original control board is held in place by a clip which is glued in place. The clip must be broken to release it.
=== ''Optional'' Cut (with knife and/or dremel) slot for USB-C port ===
The replacement control board will stick its USB port out the hole you cut.

This hole should cut from the black plastic in the end of the light close to where the original control board was, but on the other side (away from the LED strip).

== Step 2: Desoldering and soldering ==

=== Desoldering ===
Use a soldering iron the detach the wires from the original control board.

'''NB''' ''Optional'': The original [https://github.com/simoneluconi/SKAFTSARV-to-WLED SKAFTSARV to WLED] instructions suggest a way of keeping the original buttons working by desoldering the chip from the original control board and then wiring contact points on the control board to the ESP32C3, including two additional points which are connected to GPIO 0 and GPIO 1; this is more technically challenging and is not included in this set of instructions.

=== Soldering ===

'''NB''' ''Optional'': If you have cut a hole to allow access to the new control board once the light is reassembled, you will need to extend the fine white and black wires by about 4cm each, by soldering on extension wires. Do not use the same colour wire for this; ensure you can keep track of which is still the "white" wire and which is still the "black" wire.

Solder the two '''white''' wires to the tab marked '''5V'''.

Solder the two '''black''' wires to the tab marked '''G'''.

Solder the '''brown''' wire to marked '''2'''.

== Step 3: Flashing ==

''Before you reassemble the light'', connect the new control board using its USB-C port to a computer.

On the computer, upload the new firmware to the control board using the 'esptool' command.

=== For WLED ===

For a wifi-enabled LED light you can control from your computer or phone, use the WLED binary, available from https://kno.wled.ge

esptool write-flash 0x10000 ./WLED_16.0.1_ESP32-C3.bin

If WLED has successfully flashed, you should be able to plug in the light using the power cable to a USB-charger and it will turn orange. Follow instructions on the WLED website for configuration and start exploring!

=== For PowerLightNG ===

For the light to function as a Power Light, giving a graphic representation of power generation in the Netherlands, download the firmware from the project's Codeberg website: https://codeberg.org/rmartinnielsen/PowerLightNG/releases

The PowerLightNG firmware is still in early development stages. You should probably only install this if:
* You are very patient and interested and willing to debug it or reprogram it yourself
* You have cut a hole so you will be able to access the new control board's USB-C port to reflash it.

esptool write-flash 0x10000 ./PowerLightNG-esp32c3-0.1.0.bin

If PowerLightNG firmware has installed correctly, it should boot in AP (Access Point) mode. Plug it in, connect to your new device, configure it to connect to your wifi, and restart it.

Once the PowerLightNG is on a working wifi, it should boot (with a sequence of lights turning on), then flash the first LED a few times as it downloads the data from a server, and then show a representation of power generation in the Netherlands.

It will update its data every ten minutes.

== Step 4: Reassembly ==

Once you are confident of the wiring of your modified light, reassemble it.

=== Control board ===

Ensure the rubber button covers are still in place to keep dust out of the light.

If your new control board does not extend its USB port out of the case, you can leave it unattached within the space of the light. Keep it on the side of the light '''away''' from the LEDs, which generate a lot of heat.

'''Optional''' If you have cut a hole for access to the USB port of the new control board, this is when you can glue it into place. Put a row of hot glue around the black plastic of the hole you have cut and push the control board into place. Ensure that the outer edge of the USB-C port is flush with outside of the case, so that you can still attach the stand to position the light upright.

=== Diffuser ===
Reattach the diffuser panel using the screws. It may take some fiddling to re-seat the led strip. You may want to use hot glue to stick it back into place.

=== Translucent outer panel ===
This can be held in place with elastic bands or sticky tape, or you can use hot glue to seal it back in place.

IKEA LED lamp hacking workshop

2026-09-29T19:43:06Z

Oops: Number three latter steps

== Introduction ==

This page is intended to give step-by-step instructions for modifying an IKEA Skaftsarv LED light to replace the original control board with a programmable ESP32C3 board, then installing software on the board and configuring it to make it possible to control the light across wifi.

== Warning ==
These modifications will not only void your warranty, they also change the device from being a tested and certified piece of equipment to being a do-it-yourself project. Though you can glue it back together again, this version will not have been tested as well as the original version. If you find it running too hot, '''unplug it immediately'''.

== Tools ==
You will need
* small Phillips head screwdriver
* spudgers
* cheap flat-head screwdriver for prying
* sharp knife and/or Dremel tool for cutting the case
* soldering iron
* solder
* hot glue

== Components ==
* 1 IKEA Skaftsarv LED light
* 1 ESP32C3 mini development board

These two items may be available from the RevBank as a kit.

== Step 1: Dismantle the light ==

=== Snap off outside translucent cover ===
This will likely require use of spudgers. The outside translucent cover is glued in place
=== Unscrew inner diffuser panel ===
This should be done with a fine-head Phillips screwdriver. Keep the screws to reattach this assembly later.
=== Snap out original control PCB ===
This should be done with a cheap prying tool. The original control board is held in place by a clip which is glued in place. The clip must be broken to release it.
=== ''Optional'' Cut (with knife and/or dremel) slot for USB-C port ===
The replacement control board will stick its USB port out the hole you cut.

This hole should cut from the black plastic in the end of the light close to where the original control board was, but on the other side (away from the LED strip).

== Step 2: Desoldering and soldering ==

=== Desoldering ===
Use a soldering iron the detach the wires from the original control board.

=== Soldering ===

'''NB''' ''Optional'': If you have cut a hole to allow access to the new control board once the light is reassembled, you will need to extend the fine white and black wires by about 4cm each, by soldering on extension wires. Do not use the same colour wire for this; ensure you can keep track of which is still the "white" wire and which is still the "black" wire.

Solder the two '''white''' wires to the tab marked '''5V'''.

Solder the two '''black''' wires to the tab marked '''G'''.

Solder the '''brown''' wire to marked '''2'''.

== Step 3: Flashing ==

''Before you reassemble the light'', connect the new control board using its USB-C port to a computer.

On the computer, upload the new firmware to the control board using the 'esptool' command.

=== For WLED ===

For a wifi-enabled LED light you can control from your computer or phone, use the WLED binary, available from...

esptool write-flash 0x10000 ./WLED_16.0.1_ESP32-C3.bin

If WLED has successfully flashed, you should be able to plug in the light using the power cable to a USB-charger and it will turn orange. Follow instructions on the WLED website for configuration and start exploring!

=== For PowerLightNG ===

The PowerLightNG firmware is still in early development stages. You should probably only install this if:
* You are very patient and interested and willing to debug it or reprogram it yourself
* You have cut a hole so you will be able to access the new control board's USB-C port to reflash it.

esptool write-flash 0x10000 ./PowerLightNG-esp32c3-0.1.0.bin

If PowerLightNG firmware has installed correctly, it should boot in AP (Access Point) mode. Plug it in, connect to your new device, configure it to connect to your wifi, and restart it.

Once the PowerLightNG is on a working wifi, it should boot (with a sequence of lights turning on), then flash the first LED a few times as it downloads the data from a server, and then show a representation of power generation in the Netherlands.

It will update its data every ten minutes.

== Step 4: Reassembly ==

Once you are confident of the wiring of your modified light, reassemble it.

=== Control board ===

Ensure the rubber button covers are still in place to keep dust out of the light.

If your new control board does not extend its USB port out of the case, you can leave it unattached within the space of the light. Keep it on the side of the light '''away''' from the LEDs, which generate a lot of heat.

'''Optional''' If you have cut a hole for access to the USB port of the new control board, this is when you can glue it into place. Put a row of hot glue around the black plastic of the hole you have cut and push the control board into place.

=== Diffuser ===
Reattach the diffuser panel using the screws. It may take some fiddling to re-seat the led strip.

=== Translucent outer panel ===
This can be held in place with elastic bands or sticky tape, or you can use hot glue to seal it back in place.

IKEA LED lamp hacking workshop

2026-09-29T19:42:10Z

Oops: Add in header for placement of the control board

== Introduction ==

This page is intended to give step-by-step instructions for modifying an IKEA Skaftsarv LED light to replace the original control board with a programmable ESP32C3 board, then installing software on the board and configuring it to make it possible to control the light across wifi.

== Warning ==
These modifications will not only void your warranty, they also change the device from being a tested and certified piece of equipment to being a do-it-yourself project. Though you can glue it back together again, this version will not have been tested as well as the original version. If you find it running too hot, '''unplug it immediately'''.

== Tools ==
You will need
* small Phillips head screwdriver
* spudgers
* cheap flat-head screwdriver for prying
* sharp knife and/or Dremel tool for cutting the case
* soldering iron
* solder
* hot glue

== Components ==
* 1 IKEA Skaftsarv LED light
* 1 ESP32C3 mini development board

These two items may be available from the RevBank as a kit.

== Step 1: Dismantle the light ==

=== Snap off outside translucent cover ===
This will likely require use of spudgers. The outside translucent cover is glued in place
=== Unscrew inner diffuser panel ===
This should be done with a fine-head Phillips screwdriver. Keep the screws to reattach this assembly later.
=== Snap out original control PCB ===
This should be done with a cheap prying tool. The original control board is held in place by a clip which is glued in place. The clip must be broken to release it.
=== ''Optional'' Cut (with knife and/or dremel) slot for USB-C port ===
The replacement control board will stick its USB port out the hole you cut.

This hole should cut from the black plastic in the end of the light close to where the original control board was, but on the other side (away from the LED strip).

== Desoldering and soldering ==

=== Desoldering ===
Use a soldering iron the detach the wires from the original control board.

=== Soldering ===

'''NB''' ''Optional'': If you have cut a hole to allow access to the new control board once the light is reassembled, you will need to extend the fine white and black wires by about 4cm each, by soldering on extension wires. Do not use the same colour wire for this; ensure you can keep track of which is still the "white" wire and which is still the "black" wire.

Solder the two '''white''' wires to the tab marked '''5V'''.

Solder the two '''black''' wires to the tab marked '''G'''.

Solder the '''brown''' wire to marked '''2'''.

== Flashing ==

''Before you reassemble the light'', connect the new control board using its USB-C port to a computer.

On the computer, upload the new firmware to the control board using the 'esptool' command.

=== For WLED ===

For a wifi-enabled LED light you can control from your computer or phone, use the WLED binary, available from...

esptool write-flash 0x10000 ./WLED_16.0.1_ESP32-C3.bin

If WLED has successfully flashed, you should be able to plug in the light using the power cable to a USB-charger and it will turn orange. Follow instructions on the WLED website for configuration and start exploring!

=== For PowerLightNG ===

The PowerLightNG firmware is still in early development stages. You should probably only install this if:
* You are very patient and interested and willing to debug it or reprogram it yourself
* You have cut a hole so you will be able to access the new control board's USB-C port to reflash it.

esptool write-flash 0x10000 ./PowerLightNG-esp32c3-0.1.0.bin

If PowerLightNG firmware has installed correctly, it should boot in AP (Access Point) mode. Plug it in, connect to your new device, configure it to connect to your wifi, and restart it.

Once the PowerLightNG is on a working wifi, it should boot (with a sequence of lights turning on), then flash the first LED a few times as it downloads the data from a server, and then show a representation of power generation in the Netherlands.

It will update its data every ten minutes.

== Reassembly ==

Once you are confident of the wiring of your modified light, reassemble it.

=== Control board ===

Ensure the rubber button covers are still in place to keep dust out of the light.

If your new control board does not extend its USB port out of the case, you can leave it unattached within the space of the light. Keep it on the side of the light '''away''' from the LEDs, which generate a lot of heat.

'''Optional''' If you have cut a hole for access to the USB port of the new control board, this is when you can glue it into place. Put a row of hot glue around the black plastic of the hole you have cut and push the control board into place.

=== Diffuser ===
Reattach the diffuser panel using the screws. It may take some fiddling to re-seat the led strip.

=== Translucent outer panel ===
This can be held in place with elastic bands or sticky tape, or you can use hot glue to seal it back in place.

IKEA LED lamp hacking workshop

2026-09-29T19:39:58Z

Oops: Initial step by step description of workshop activities to hack an IKEA light

PowerLightNG

2026-09-26T20:32:26Z

Oops: Add links to codeberg repository with firmware and python code

{{Project
|Name=Power Light Next Generation
|Omschrijving=Re-implementing the Energy Ring with (hacked) consumer hardware
|Status=In progress
|Picture=PowerBar-overhead.PNG
|Contact=Oops
|LastUpdated=2026-08-29
}}

== Introduction ==

[[Gebruiker:Bertrik_Sikken|Bertrik]]'s [[PowerLight]] project is one of my favourite small details in the RevSpace. It sits there and simply presents some data in a colourful way.

I'd wanted to try replicating it but hadn't got around to purchasing the LED ring.

Then I followed a link to the the [https://github.com/simoneluconi/SKAFTSARV-to-WLED how to mod an IKEA SKAFTSARV with ESP32] instructions, and decided to give this a try. It was something that could be fairly straightforward to do with my children and would then be something to play with as a software exercise.

== Process ==

We bought two IKEA [https://www.ikea.com/nl/en/p/skaftsarv-led-decoration-lighting-dimmable-40612828/ SKAFTSARV]'s and inserted ESP32C3 mini boards in, placing the board in the second one such that it could be accessed from one end.

[[Bestand:PowerBar-endview.PNG|100px|omkaderd|rechts|End view of two IKEA SKAFTSARV lights showing rainbow lights, one of them with a cutout in the end to allow access to the USB-C port of an ESP32C3 board.]]

The first one has the controller board inside, making it inaccessible to reprogram without disassembling the light again.

== Python & WLED ==
We flashed the first light with [https://github.com/wled/WLED WLED] and one of my children wrote a python script to drive the WLED app using data from Bertrik's server (in JSON format). We now have this running every fifteen minutes on another computer at home to force and update.

== C++ and JSON parsing ==

Separately I've written c++ code which runs in the controller board on the second light (where the board's USB-C port is accessible for reprogramming). This connects to Bertrik's server and grabs the JSON and presents it. In this this is essentially a reimplementation of the original Power Light project, but in a strip.

== Advantages of hacking consumer hardware ==
By working with the IKEA hardware, we have something which is already self-contained and (apart from some damage done to break it apart for hacking) looks good.

== Next steps ==
My longer goal ambition is to write something which can parse the electricity generation data for Ontario published by the [https://www.ieso.ca/ Independent Electrical System Operator (IESO)].

The XML data for each day is large (at least 800kb) and so I will need to write something which can parse and interpret the XML data on the fly (though not necessarily in a single pass).

== Sources and links ==
The c++ code for the firmware is now available on Codeberg: https://codeberg.org/rmartinnielsen/PowerLightNG/releases/tag/v0.1.0

A python script which can drive an WLED firmware in the same hardware setup (ESP32C3 in an IKEA Skaftsarv) is also available: https://codeberg.org/rmartinnielsen/PowerLightNG/src/tag/v0.1.1/src/PowerLightNG-WLED.py

Weekend van de Wetenschap (2026)

2026-09-21T16:42:12Z

Oops: /* Wie is er wanneer */

{{Event
|Name=Weekend van de Wetenschap 2026
|URL=https://weekendvandewetenschap.nl/
|DateStart=3 October 2026 11:00
|DateEnd=4 October 2026 18:00
|Info=Soon!
|InfoLocation=RevSpace
|InfoOpen=11:00
}}

==Bezoekers==
<span style="font-size: 150%">Boek een rondleiding via: https://pretix.eu/revspace/wvdw2026/<span>

'''Bezoekers kunnen zich ook LAST MINUTE aanmelden; zolang er ruimte is, kun je aanmelden tot het timeslot begint!'''

Ben je ook een hacker? Rare vraag misschien als je bij het woord hacken direct aan criminelen en cyber denkt. De criminelen vind je bij ons niet!

Revelation Space (RevSpace) is een van de oudste en grootste hackerspaces van Nederland. Al meer dan 16 jaar komen onze deelnemers en belangstellenden bij ons bijeen om te hacken, te maken en uit te wisselen.

Bij de rondleiding laten we je al onze werkplaatsen zien. Je kunt mede-hackers ontmoeten en praten over hun projecten, en uiteraard mag je ook zelf aan een projectje werken.

Ons aanbod is altijd afhankelijk van de aanwezige deelnemers die demonstraties willen geven. Denk: Snijden met laserlicht, solderen aan elektronica, meuk uit elkaar schroeven, printen in drie dimensies.

Het Weekend van de Wetenschap vindt elk jaar plaats in het eerste weekend van oktober. In 2026 is dit op 3 & 4 oktober.

==Organisatie==
===Wie is er wanneer===

Lunch: 14:00-15:00.

{|class=wikitable
! Naam !! Zaterdag<br>10:30-14:00 !! Zaterdag<br>15:00-18:00 !! Zondag<br>10:30-14:00 !! Zondag<br>15:00-18:00 !! Opmerkingen
|-
| Atoomnet || ja || ja || ja || ja || [[CTF-challenge]] & solderen
|-
| Juerd || x || ja || x || ja || Regelt lunch voor vrijwilligers
|-
| Mala || ja || ja || x || x || Rondleiden & praten
|-
| Mystery || ja || ja || x || x || Rondleiden & praten
|-
| Ries || x || ja || x || ja || Rondleiden & praten
|-
| Oops || ja || x || ja || -15h00 || World's Slowest Pixelflut<sup>TM</sup>, lasercutting & [[PowerLightNG]] workshop, tours (EN, FR)
|-
| Shiz || ja || ja? || ja || ja? || Rondleiden & praten
|-
| JIJ ? || zamo || zami || zomo || zomi || Wat ga je laten zien of doen?
|-

Weekend van de Wetenschap (2026)

2026-09-20T20:15:00Z

Oops: /* Wie is er wanneer */

{{Event
|Name=Weekend van de Wetenschap 2026
|URL=https://weekendvandewetenschap.nl/
|DateStart=3 October 2026 11:00
|DateEnd=4 October 2026 18:00
|Info=Soon!
|InfoLocation=RevSpace
|InfoOpen=11:00
}}

==Bezoekers==
<span style="font-size: 150%">Boek een rondleiding via: https://pretix.eu/revspace/wvdw2026/<span>

'''LAST MINUTE aanmelden is prima; je kunt aanmelden tot het timeslot begint!'''

Ben je ook een hacker? Rare vraag misschien als je bij het woord hacken direct aan criminelen en cyber denkt. De criminelen vind je bij ons niet!

Revelation Space (RevSpace) is een van de oudste en grootste hackerspaces van Nederland. Al meer dan 16 jaar komen onze deelnemers en belangstellenden bij ons bijeen om te hacken, te maken en uit te wisselen.

Bij de rondleiding laten we je al onze werkplaatsen zien. Je kunt mede-hackers ontmoeten en praten over hun projecten, en uiteraard mag je ook zelf aan een projectje werken.

Ons aanbod is altijd afhankelijk van de aanwezige deelnemers die demonstraties willen geven. Denk: Snijden met laserlicht, solderen aan elektronica, meuk uit elkaar schroeven, printen in drie dimensies.

Het Weekend van de Wetenschap vindt elk jaar plaats in het eerste weekend van oktober. In 2026 is dit op 3 & 4 oktober.

==Organisatie==
===Wie is er wanneer===

{|class=wikitable
! Naam !! Zaterdag !! Zondag !! Opmerkingen
|-
| Atoomnet || Vroeg-Laat || Vroeg-Laat || [[CTF-challenge]] & solderen
|-
| Juerd || 14-laat || 14-laat || Regelt lunch voor vrijwilligers
|-
| Mala || Vroeg-Laat || x || Rondleiden & praten
|-
| Mystery || Vroeg-Laat || x || Rondleiden & praten
|-
| Ries || Half-Laat || Half-Laat || Rondleiden & praten
|-
| Oops || x || 10h30-15h30 || World's Slowest Pixelflut<sup>TM</sup>, lasercutting & [[PowerLightNG]] workshop (tbc), tours (EN, FR)
|-
| Shiz || Vroeg-Laat? || Vroeg-Laat? || Rondleiden & praten
|-
| JIJ ? || Wanneer || Wanneer || Wat ga je laten zien of doen?
|-

Weekend van de wetenschap

2026-09-20T20:12:38Z

Oops: Oops heeft pagina Weekend van de wetenschap hernoemd naar Weekend van de Wetenschap: Capitalization of generic title to match year-specific pages

#DOORVERWIJZING [[Weekend van de Wetenschap]]

Weekend van de Wetenschap

2026-09-20T20:12:38Z

Oops: Oops heeft pagina Weekend van de wetenschap hernoemd naar Weekend van de Wetenschap: Capitalization of generic title to match year-specific pages

#REDIRECT [[Weekend van de Wetenschap (2026)]]

Weekend van de Wetenschap

2026-09-20T20:10:31Z

Oops: Updated to make this point to the 2026 edition of the event.

#REDIRECT [[Weekend van de Wetenschap (2026)]]

PowerLightNG

2026-09-12T18:03:00Z

Oops:

{{Project
|Name=Power Light Next Generation
|Omschrijving=Re-implementing the Energy Ring with (hacked) consumer hardware
|Status=In progress
|Picture=PowerBar-overhead.PNG
|Contact=Oops
|LastUpdated=2026-08-29
}}

== Introduction ==

[[Gebruiker:Bertrik_Sikken|Bertrik]]'s [[PowerLight]] project is one of my favourite small details in the RevSpace. It sits there and simply presents some data in a colourful way.

I'd wanted to try replicating it but hadn't got around to purchasing the LED ring.

Then I followed a link to the the [https://github.com/simoneluconi/SKAFTSARV-to-WLED how to mod an IKEA SKAFTSARV with ESP32] instructions, and decided to give this a try. It was something that could be fairly straightforward to do with my children and would then be something to play with as a software exercise.

== Process ==

We bought two IKEA [https://www.ikea.com/nl/en/p/skaftsarv-led-decoration-lighting-dimmable-40612828/ SKAFTSARV]'s and inserted ESP32C3 mini boards in, placing the board in the second one such that it could be accessed from one end.

[[Bestand:PowerBar-endview.PNG|100px|omkaderd|rechts|End view of two IKEA SKAFTSARV lights showing rainbow lights, one of them with a cutout in the end to allow access to the USB-C port of an ESP32C3 board.]]

The first one has the controller board inside, making it inaccessible to reprogram without disassembling the light again.

== Python & WLED ==
We flashed the first light with [https://github.com/wled/WLED WLED] and one of my children wrote a python script to drive the WLED app using data from Bertrik's server (in JSON format). We now have this running every fifteen minutes on another computer at home to force and update.

== C++ and JSON parsing ==

Separately I've written c++ code which runs in the controller board on the second light (where the board's USB-C port is accessible for reprogramming). This connects to Bertrik's server and grabs the JSON and presents it. In this this is essentially a reimplementation of the original Power Light project, but in a strip.

== Advantages of hacking consumer hardware ==
By working with the IKEA hardware, we have something which is already self-contained and (apart from some damage done to break it apart for hacking) looks good.

== Next steps ==
My longer goal ambition is to write something which can parse the electricity generation data for Ontario published by the [https://www.ieso.ca/ Independent Electrical System Operator (IESO)].

The XML data for each day is large (at least 800kb) and so I will need to write something which can parse and interpret the XML data on the fly (though not necessarily in a single pass).

== Sources and links ==
I plan to put up the python and c++ code developed once it is clean and on codeberg.

Weekend van de Wetenschap (2026)

2026-09-12T15:51:10Z

Oops: /* Wie is er wanneer */ Adding Oops for Sunday

{{Event
|Name=Weekend van de Wetenschap 2026
|URL=https://weekendvandewetenschap.nl/
|DateStart=3 October 2026 11:00
|DateEnd=4 October 2026 18:00
|Info=Soon!
|InfoLocation=RevSpace
|InfoOpen=11:00
}}

==Bezoekers==
<span style="font-size: 150%">Boek een rondleiding via: https://pretix.eu/revspace/wvdw2026/<span>

'''LAST MINUTE aanmelden is prima; je kunt aanmelden tot het timeslot begint!'''

Ben je ook een hacker? Rare vraag misschien als je bij het woord hacken direct aan criminelen en cyber denkt. De criminelen vind je bij ons niet!

Revelation Space (RevSpace) is een van de oudste en grootste hackerspaces van Nederland. Al meer dan 16 jaar komen onze deelnemers en belangstellenden bij ons bijeen om te hacken, te maken en uit te wisselen.

Bij de rondleiding laten we je al onze werkplaatsen zien. Je kunt mede-hackers ontmoeten en praten over hun projecten, en uiteraard mag je ook zelf aan een projectje werken.

Ons aanbod is altijd afhankelijk van de aanwezige deelnemers die demonstraties willen geven. Denk: Snijden met laserlicht, solderen aan elektronica, meuk uit elkaar schroeven, printen in drie dimensies.

Het Weekend van de Wetenschap vindt elk jaar plaats in het eerste weekend van oktober. In 2026 is dit op 3 & 4 oktober.

==Organisatie==
===Wie is er wanneer===

{|class=wikitable
! Naam !! Zaterdag !! Zondag !! Opmerkingen
|-
| Atoomnet || Vroeg-Laat || Vroeg-Laat || [https://revspace.nl/CTF-challenge CTF-challenge] & solderen
|-
| Juerd || 14-laat || 14-laat || Regelt lunch voor vrijwilligers
|-
| Mala || Vroeg-Laat || x || Rondleiden & praten
|-
| Mystery || Vroeg-Laat || x || Rondleiden & praten
|-
| Ries || Half-Laat || Half-Laat || Rondleiden & praten
|-
| Oops || x || 10h30-15h30 || World's Slowest Pixelflut<sup>TM</sup>, lasercutting & [[PowerLightNG]] demo, tours (EN, FR)
|-
| JIJ ? || Wanneer || Wanneer || Wat ga je laten zien of doen?
|-

PowerLightNG

2026-08-29T17:43:56Z

Oops: Project page presenting reimplementation of the Power Light project with alternate hardware and client software.

{{Project
|Name=Power Light Next Generation
|Omschrijving=Re-implementing the Energy Ring with (hacked) consumer hardware
|Status=In progress
|Picture=PowerBar-overhead.PNG
|Contact=Oops
|LastUpdated=2026-08-29
}}

== Introduction ==

[[Gebruiker:Bertrik_Sikken|Bertrik]]'s [[PowerLight]] project is one of my favourite small details in the RevSpace. It sits there and simply presents some data in a colourful way.

I'd wanted to try replicating it but hadn't got around to purchasing the LED ring.

Then I followed a link to the the [https://github.com/simoneluconi/SKAFTSARV-to-WLED how to mod an IKEA SKAFTSARV with ESP32] instructions, and decided to give this a try. It was something that could be fairly straightforward to do with my children and would then be something to play with as a software exercise.

== Process ==

We bought two IKEA [https://www.ikea.com/nl/en/p/skaftsarv-led-decoration-lighting-dimmable-40612828/ SKAFTSARV]'s and inserted ESP32C3 mini boards in, placing the board in the second one such that it could be accessed from one end.

[[Bestand:PowerBar-endview.PNG|200px|omkaderd|rechts|End view of two IKEA SKAFTSARV lights showing rainbow lights, one of them with a cutout in the end to allow access to the USB-C port of an ESP32C3 board.]]

The first one has the controller board inside, making it inaccessible to reprogram without disassembling the light again.

== Python & WLED ==
We flashed the first light with [https://github.com/wled/WLED WLED] and one of my children wrote a python script to drive the WLED app using data from Bertrik's server (in JSON format). We now have this running every fifteen minutes on another computer at home to force and update.

== C++ and JSON parsing ==

Separately I've written c++ code which runs in the controller board on the second light (where the board's USB-C port is accessible for reprogramming). This connects to Bertrik's server and grabs the JSON and presents it. In this this is essentially a reimplementation of the original Power Light project, but in a strip.

== Advantages of hacking consumer hardware ==
By working with the IKEA hardware, we have something which is already self-contained and (apart from some damage done to break it apart for hacking) looks good.

== Next steps ==
My longer goal ambition is to write something which can parse the electricity generation data for Ontario published by the [https://www.ieso.ca/ Independent Electrical System Operator (IESO)].

The XML data for each day is large (at least 800kb) and so I will need to write something which can parse and interpret the XML data on the fly (though not necessarily in a single pass).

== Sources and links ==
I plan to put up the python and c++ code developed once it is clean and on codeberg.

Bestand:PowerBar-endview.PNG

2026-08-29T15:54:09Z

Oops: Bestand is geüpload met MsUpload

Bestand is geüpload met MsUpload

Bestand:PowerBar-overhead.PNG

2026-08-29T15:53:54Z

Oops: Bestand is geüpload met MsUpload

Bestand is geüpload met MsUpload

Borduurmachine

2026-04-11T19:40:10Z

Oops: /* Leeschvoer */ Adding links to EN versions of documentation on Brother website

{{Project
|Name=Borduurmachine Brother Innov-ís M240ED
|Picture=Brother m240ed - borduurmachine 1.jpg
|Omschrijving=We hebben een borduurmachine!
|Status=In progress
|Contact=Boekenwuurm
}}

We hebben dankzij Boekenwuurm en een flinke groep donateurs een Brother Innov-ís M240ED aangeschaft.
=software=
==Ink/Stitch==

https://inkstitch.org/

Onze borduurmachine verstaat het .pes formaat. Wat onze borduurmachine ''niet'' ondersteunt is een trim (draad afsnijden) commando. Dit is raar, want de machine snijdt wel zelf de draad af bij een draadwissel.

Voor overgangen tussen twee losse stukken van een ontwerp wordt een "jump stitch" gemaakt. Je kunt hier twee strategieën bewandelen: ze zo kort houden dat ze niet opvallen of ze juist zo lang mogelijk maken, zodat je er makkelijk met een schaartje onder kunt komen om ze af te knippen. Dat kan tijdens het borduren als je de machine even pauzeert.

===Tutorials===
[https://inkstitch.org/tutorials/resources/beginner-video-tutorials/ Video Tutorials]

=Leeschvoer=
*[[:File:888 m30 m31 om01nl.pdf|Handleiding (NL)]] [https://download.brother.com/welcome/doch101034/888%20m30%20m31%20om01en.pdf Manual (EN)]
*[[:File:888_m30_m31_m36_qg01endefrnlitesptbrru.pdf|Quick Reference Guide (NL)]] [https://download.brother.com/welcome/doch101047/888_m30_m31_m36_qg01endefrnlitesptbrru.pdf Quick Reference Guide (EN)]
*[[:File:Folder.pdf|Reclame folder met alle specs]]

*[[:File:888_m00_m02_m30_ddg01endefrnlitesptbrru.pdf|Disney Design guide]]
*[[:File:888_m00_m02_m03_m04_m30_m31_pl01endefrnlitesptbrru.pdf|Embroidery Design Guide]]

*[[:File:acc_catalogue_oct_2017.pdf|Accessoire catalogus]]
*[[:File:m240ed_acc01denlitru.pdf|Overzicht meegeleverde accessoires]]

*[[:File:usbmedia_888m00_m02_m03_m04_m20_m30_m31_m36_m37_en_r19-05.pdf|USB Media compatibility list]]
*Voorbeeldpatronen zijn te vinden op [https://sewingcraft.brother.eu/en/inspiration-and-events/projects-and-free-patterns de site van Brother]

=Gebruik=
'''Ga niet zomaar aan instellingen tweaken (zeker niet aan de onderdraad stelschroefjes!), ook al denk je dat het wel nodig is. Overleg met Boekenwuurm.
'''

'''Deze machine is alleen te gebruiken als je instructie hebt gehad, of al ruime ervaring met naai/borduurmachines hebt!'''

==Machine klaarzetten==
Er zijn drie SAMLAs gelabeld 'Borduurmachine'.
# De Borduurmachine zelf
# De accessoires (stofschaar, borduurraam, borduurgaren, onderdraad, naalden, vlies, handleidingen)
# De XY tafel (deze is kwetsbaar!)

Pak alledrie de SAMLAs en pak ze uit. De XY tafel klikt in de borduurmachine.

===POST===
Voorzie de machine van stroom en zet hem aan. Vergrendel daarna de machine via de ... knop

==Borduren voorbereiden==
===Onderdraadspoeltje opwinden===
Er zijn momenteel twee kleuren onderdraad aanwezig, wit en zwart. Op de klosjes staat 'bobbin' gedrukt. Ander draad gebruiken werkt NIET.

===Onderdraad inspannen===
Volg de pijltjes. Bij nummer 3 moet je een klikje horen of voelen, anders komt de onderdraad boven.

===Bovendraad inspannen===

===Stof inspannen===

===Patroon laden===
Als je de USB stick in het apparaat steekt, geef de borduurmachine even de gelegenheid om te beseffen wat er net gebeurd is.

===Patroon instellen===

==Borduren==

Tijdens het borduren kun je op elk moment de machine stil zetten. Dit kan handig zijn om bijvoorbeeld verbindingen ("jump stiches") weg te knippen.

=== Op de rand van een mouw borduren ===

[[File:Mouwborduren.jpg|thumb|150px|right|Mouw borduren]]Dit is erg lastig, omdat het borduurraam in de mouw geschoven moet worden. Het kan handig zijn om eerst de stabilizer in de mouw te schuiven en die samen met de stof in te klemmen in het borduurraam. De onderkant van de mouw zit aan de onderkant van het borduurraam, en zit dus flink in de weg. Bij een T-shirt kan het dan handig zijn om een stuk hout in het kledingstuk te steken om het op spanning te zetten en te zorgen dat het niet in de weg zit.

==Troubleshooting==

==Opruimen==

=Donaties=
{| class="wikitable"
|-
! Naam/Nick
! Bedrag
! Betaald?
|-
| Boekenwuurm || 100 || ja, Bunq
|-
| Sebastius || 50 || ja, Bunq
|-
| Lukkie en Blaat || 75 || ja, Bunq
|-
| Jelly || 25 || ja, Bunq
|-
| Bertrik || 10 || ja, Bunq
|-
| PinoAffe || 20 || ja, Bunq
|-
| Peetz0r || 50 || ja, Bunq
|-
| F0x || 10 || ja, Bunq
|-
| Crashjuh || 12,34 || ja, Bunq
|-
| Deurknop || 30 || ja, Bunq
|-
| Audionerd || 25 || ja, Bunq
|-
| Synq || 20 || ja, revbank
|-
| Gori || 20 || ja, bunq
|-
| Eightdot || 25 || ?
|-
| Molenaar || 15 || ja, revbank
|-
| Pepman || 10 || ja, revbank
|}

Huidige donaties: 497,34

[[Category:Textielbewerking]]

Bestand:Opendag postcard rev1 NL-EN.pdf

2026-03-14T12:06:19Z

Oops: Oops uploaded a new version of File:Opendag postcard rev1 NL-EN.pdf

File uploaded with MsUpload

OpenDag2026

2026-03-13T19:28:17Z

Oops: /* Flyer */

{{Event
|Name=OpenDag2026
|DateStart=28 March 2026
|DateEnd=28 March 2026
|InfoLocation=RevSpace
|InfoOpen=11:00
}}
{{NewsItem
|Name=Jaarlijkse open Hackerspaces dag (2026)
|Date=2026-03-28
|Info=''Op zaterdag 28 maart kan iedereen weer vrij binnenlopen in een hackerspace. Tijdens deze open dag is het mogelijk om te zien wat bijvoorbeeld hacken inhoudt en te zien wat er allemaal kan in een hackerspace.''

}}

==Ticketshop==
Om de drukte te spreiden over de dag, werken we met reserveringen.

<div style="font-size: 200%">[https://pretix.eu/revspace/opendag2026/ Bestel een gratis ticket] ← klik :)</div>

== Bezoeken ==
https://revspace.nl/Bezoeken

==Flyer==
[[File:Revopendagvoor.png|200px]]
[[File:OpenDagrevBack.png|200px]]
<br>

[[File:opendag_RevSpace2026.pdf]]

Bilingual single-sided rework:

[[File:Opendag 2026 postcard rev1 NL-EN.png|600px]]

[[File:Opendag_postcard_rev1_NL-EN.pdf]]

== Organisatie ==

Landelijk ingegeven via: https://hackerspaces.nl/open-dag/

RevSpace doet uiteraard ook mee.

=== Activiteiten ===
* Rondleidingen langs onze werkplaatsen, apparatuur en projecten.
* Op verzoek: demonstratie van apparatuur zoals lasersnijder, 3D-printer, foliesnijder, oscilloscoop, etc...
* Sleutelhanger maken/graveren met de lasersnijder

=== Aanwezigen ===

Om zeker te weten dat we met genoeg mensen zijn, een lijstje van revspacers die hebben toegezegd te komen om bezoekers te ontvangen:

{|class=wikitable
! Naam !! Van-tot !! Opmerkingen
|-
| Atoomnet || vroeg - laat || Begeleiden: [[CTF-challenge]]
|-
| Crashjuh || vroeg - laat || Rondleiden, 3D Printen, misschien iets met radio communicatie
|-
| Wheeze_NL || 14:00 - laat || Aanwezig, Rondleiden?
|-
| Ries || vroeg - laat || Aanwezig, Rondleiden, Goede lunch, 3d projectjes.
|-
| Mala || 10.00 - laat || Openen, Voorbereiden, Rondleiden, algemeen
|-
| Mystery || 10.00 - laat || Openen, Voorbereiden, Rondleiden, algemeen
|-
| Juerd || 14:00 - laat || Regelt lunch voor vrijwilligers (lunchpauze = 14-15h)
|-
| Oops || 10.00 - 15.00 || Displays, tours (English, French), laser-cutting, project display
|-
| Eloy || Vroeg - laat || Rondleiden
|-
| Jij? || 11.00 - laat || Rondleiden, lasercutten, algemeen knutselen
|-
|-
|}

=== Promotie ===
* Wie contacteert welke krant/influencer/etc? Wie flyert in welke wijk/locatie/etc?
* Jij doet??
redactie van voorburgsdagblad.nl getipt en https://vlietnieuws.nl/schrijf-mee-aan-vlietnieuws/

OpenDag2026

2026-03-13T19:27:47Z

Oops: /* Flyer */

{{Event
|Name=OpenDag2026
|DateStart=28 March 2026
|DateEnd=28 March 2026
|InfoLocation=RevSpace
|InfoOpen=11:00
}}
{{NewsItem
|Name=Jaarlijkse open Hackerspaces dag (2026)
|Date=2026-03-28
|Info=''Op zaterdag 28 maart kan iedereen weer vrij binnenlopen in een hackerspace. Tijdens deze open dag is het mogelijk om te zien wat bijvoorbeeld hacken inhoudt en te zien wat er allemaal kan in een hackerspace.''

}}

==Ticketshop==
Om de drukte te spreiden over de dag, werken we met reserveringen.

<div style="font-size: 200%">[https://pretix.eu/revspace/opendag2026/ Bestel een gratis ticket] ← klik :)</div>

== Bezoeken ==
https://revspace.nl/Bezoeken

==Flyer==
[[File:Revopendagvoor.png|200px]]
[[File:OpenDagrevBack.png|200px]]
<br>

[[File:opendag_RevSpace2026.pdf]]

Bilingual single-sided rework:

[[File:Opendag 2026 postcard rev1 NL-EN.png]]

[[File:Opendag_postcard_rev1_NL-EN.pdf]]

== Organisatie ==

Landelijk ingegeven via: https://hackerspaces.nl/open-dag/

RevSpace doet uiteraard ook mee.

=== Activiteiten ===
* Rondleidingen langs onze werkplaatsen, apparatuur en projecten.
* Op verzoek: demonstratie van apparatuur zoals lasersnijder, 3D-printer, foliesnijder, oscilloscoop, etc...
* Sleutelhanger maken/graveren met de lasersnijder

=== Aanwezigen ===

Om zeker te weten dat we met genoeg mensen zijn, een lijstje van revspacers die hebben toegezegd te komen om bezoekers te ontvangen:

{|class=wikitable
! Naam !! Van-tot !! Opmerkingen
|-
| Atoomnet || vroeg - laat || Begeleiden: [[CTF-challenge]]
|-
| Crashjuh || vroeg - laat || Rondleiden, 3D Printen, misschien iets met radio communicatie
|-
| Wheeze_NL || 14:00 - laat || Aanwezig, Rondleiden?
|-
| Ries || vroeg - laat || Aanwezig, Rondleiden, Goede lunch, 3d projectjes.
|-
| Mala || 10.00 - laat || Openen, Voorbereiden, Rondleiden, algemeen
|-
| Mystery || 10.00 - laat || Openen, Voorbereiden, Rondleiden, algemeen
|-
| Juerd || 14:00 - laat || Regelt lunch voor vrijwilligers (lunchpauze = 14-15h)
|-
| Oops || 10.00 - 15.00 || Displays, tours (English, French), laser-cutting, project display
|-
| Eloy || Vroeg - laat || Rondleiden
|-
| Jij? || 11.00 - laat || Rondleiden, lasercutten, algemeen knutselen
|-
|-
|}

=== Promotie ===
* Wie contacteert welke krant/influencer/etc? Wie flyert in welke wijk/locatie/etc?
* Jij doet??
redactie van voorburgsdagblad.nl getipt en https://vlietnieuws.nl/schrijf-mee-aan-vlietnieuws/

OpenDag2026

2026-03-13T19:23:53Z

Oops: /* Flyer */ Adding in revised single side postcard format

{{Event
|Name=OpenDag2026
|DateStart=28 March 2026
|DateEnd=28 March 2026
|InfoLocation=RevSpace
|InfoOpen=11:00
}}
{{NewsItem
|Name=Jaarlijkse open Hackerspaces dag (2026)
|Date=2026-03-28
|Info=''Op zaterdag 28 maart kan iedereen weer vrij binnenlopen in een hackerspace. Tijdens deze open dag is het mogelijk om te zien wat bijvoorbeeld hacken inhoudt en te zien wat er allemaal kan in een hackerspace.''

}}

==Ticketshop==
Om de drukte te spreiden over de dag, werken we met reserveringen.

<div style="font-size: 200%">[https://pretix.eu/revspace/opendag2026/ Bestel een gratis ticket] ← klik :)</div>

== Bezoeken ==
https://revspace.nl/Bezoeken

==Flyer==
[[File:Revopendagvoor.png|200px]]
[[File:OpenDagrevBack.png|200px]]
<br>

[[File:opendag_RevSpace2026.pdf]]

Bilingual single-sided rework:

[[File:Opendag_postcard_rev1_NL-EN.png]]

[[File:Opendag_postcard_rev1_NL-EN.pdf]]

== Organisatie ==

Landelijk ingegeven via: https://hackerspaces.nl/open-dag/

RevSpace doet uiteraard ook mee.

=== Activiteiten ===
* Rondleidingen langs onze werkplaatsen, apparatuur en projecten.
* Op verzoek: demonstratie van apparatuur zoals lasersnijder, 3D-printer, foliesnijder, oscilloscoop, etc...
* Sleutelhanger maken/graveren met de lasersnijder

=== Aanwezigen ===

Om zeker te weten dat we met genoeg mensen zijn, een lijstje van revspacers die hebben toegezegd te komen om bezoekers te ontvangen:

{|class=wikitable
! Naam !! Van-tot !! Opmerkingen
|-
| Atoomnet || vroeg - laat || Begeleiden: [[CTF-challenge]]
|-
| Crashjuh || vroeg - laat || Rondleiden, 3D Printen, misschien iets met radio communicatie
|-
| Wheeze_NL || 14:00 - laat || Aanwezig, Rondleiden?
|-
| Ries || vroeg - laat || Aanwezig, Rondleiden, Goede lunch, 3d projectjes.
|-
| Mala || 10.00 - laat || Openen, Voorbereiden, Rondleiden, algemeen
|-
| Mystery || 10.00 - laat || Openen, Voorbereiden, Rondleiden, algemeen
|-
| Juerd || 14:00 - laat || Regelt lunch voor vrijwilligers (lunchpauze = 14-15h)
|-
| Oops || 10.00 - 15.00 || Displays, tours (English, French), laser-cutting, project display
|-
| Eloy || Vroeg - laat || Rondleiden
|-
| Jij? || 11.00 - laat || Rondleiden, lasercutten, algemeen knutselen
|-
|-
|}

=== Promotie ===
* Wie contacteert welke krant/influencer/etc? Wie flyert in welke wijk/locatie/etc?
* Jij doet??
redactie van voorburgsdagblad.nl getipt en https://vlietnieuws.nl/schrijf-mee-aan-vlietnieuws/

Bestand:Opendag postcard rev1 NL-EN.pdf

2026-03-13T19:21:03Z

Oops: Oops uploaded a new version of File:Opendag postcard rev1 NL-EN.pdf

File uploaded with MsUpload

Bestand:Opendag 2026 postcard rev1 NL-EN.png

2026-03-13T19:20:21Z

Oops: Oops uploaded a new version of File:Opendag 2026 postcard rev1 NL-EN.png

File uploaded with MsUpload

OpenDag2026

2026-03-08T20:22:11Z

Oops: /* Flyer */

{{Event
|Name=OpenDag2026
|DateStart=28 March 2026
|DateEnd=28 March 2026
|InfoLocation=RevSpace
|InfoOpen=11:00
}}
{{NewsItem
|Name=Jaarlijkse open Hackerspaces dag (2026)
|Date=2026-03-28
|Info=''Op zaterdag 28 maart kan iedereen weer vrij binnenlopen in een hackerspace. Tijdens deze open dag is het mogelijk om te zien wat bijvoorbeeld hacken inhoudt en te zien wat er allemaal kan in een hackerspace.''

}}

==Ticketshop==
Om de drukte te spreiden over de dag, werken we met reserveringen.

<div style="font-size: 200%">[https://pretix.eu/revspace/opendag2026/ Bestel een gratis ticket] ← klik :)</div>

== Bezoeken ==
https://revspace.nl/Bezoeken

==Flyer==
[[File:OpenDag2026Front.png|200px]]
[[File:OpendagRevback.png|200px]]
[[File:opendag_RevSpace2026.pdf]]

Bilingual single-sided rework:
''yet to come''

== Organisatie ==

Landelijk ingegeven via: https://hackerspaces.nl/open-dag/

RevSpace doet uiteraard ook mee.

=== Activiteiten ===
* Rondleidingen langs onze werkplaatsen, apparatuur en projecten.
* Op verzoek: demonstratie van apparatuur zoals lasersnijder, 3D-printer, foliesnijder, oscilloscoop, etc...
* Sleutelhanger maken/graveren met de lasersnijder

=== Aanwezigen ===

Om zeker te weten dat we met genoeg mensen zijn, een lijstje van revspacers die hebben toegezegd te komen om bezoekers te ontvangen:

{|class=wikitable
! Naam !! Van-tot !! Opmerkingen
|-
| Atoomnet || vroeg - laat || Begeleiden: [[CTF-challenge]]
|-
| Crashjuh || vroeg - laat || Rondleiden, 3D Printen, misschien iets met radio communicatie
|-
| Wheeze_NL || 14:00 - laat || Aanwezig, Rondleiden?
|-
| Ries || vroeg - laat || Aanwezig, Rondleiden, Goede lunch, 3d projectjes.
|-
| Mala || 10.00 - laat || Openen, Voorbereiden, Rondleiden, algemeen
|-
| Mystery || 10.00 - laat || Openen, Voorbereiden, Rondleiden, algemeen
|-
| Juerd || 14:00 - laat || Regelt lunch voor vrijwilligers (lunchpauze = 14-15h)
|-
| Oops || 10.00 - 15.00 || Displays, tours (English, French), laser-cutting, project display
|-
| Jij? || 11.00 - laat || Rondleiden, lasercutten, algemeen knutselen
|-
|-
|}

=== Promotie ===
* Wie contacteert welke krant/influencer/etc? Wie flyert in welke wijk/locatie/etc?
* Jij doet??
redactie van voorburgsdagblad.nl getipt en https://vlietnieuws.nl/schrijf-mee-aan-vlietnieuws/

Bestand:Opendag 2026 postcard rev1 NL-EN.pdf

2026-03-08T19:36:50Z

Oops: Oops uploaded a new version of File:Opendag 2026 postcard rev1 NL-EN.pdf

File uploaded with MsUpload

Bestand:Opendag 2026 postcard rev1 NL-EN.png

2026-03-08T19:36:12Z

Oops: Oops uploaded a new version of File:Opendag 2026 postcard rev1 NL-EN.png

File uploaded with MsUpload

OpenDag2026

2026-03-08T19:32:33Z

Oops: /* Flyer */

{{Event
|Name=OpenDag2026
|DateStart=28 March 2026
|DateEnd=28 March 2026
|InfoLocation=RevSpace
|InfoOpen=11:00
}}
{{NewsItem
|Name=Jaarlijkse open Hackerspaces dag (2026)
|Date=2026-03-28
|Info=''Op zaterdag 28 maart kan iedereen weer vrij binnenlopen in een hackerspace. Tijdens deze open dag is het mogelijk om te zien wat bijvoorbeeld hacken inhoudt en te zien wat er allemaal kan in een hackerspace.''

}}

==Ticketshop==
Om de drukte te spreiden over de dag, werken we met reserveringen.

<div style="font-size: 200%">[https://pretix.eu/revspace/opendag2026/ Bestel een gratis ticket] ← klik :)</div>

== Bezoeken ==
https://revspace.nl/Bezoeken

==Flyer==
[[File:OpenDag2026Front.png|200px]]
[[File:OpendagRevback.png|200px]]
[[File:opendag_RevSpace2026.pdf]]

Bilingual single-sided rework:
[[File:Opendag 2026 postcard rev1 NL-EN.png|400px]]

[[:File:Opendag 2026 postcard rev1 NL-EN.pdf]]

== Organisatie ==

Landelijk ingegeven via: https://hackerspaces.nl/open-dag/

RevSpace doet uiteraard ook mee.

=== Activiteiten ===
* Rondleidingen langs onze werkplaatsen, apparatuur en projecten.
* Op verzoek: demonstratie van apparatuur zoals lasersnijder, 3D-printer, foliesnijder, oscilloscoop, etc...
* Sleutelhanger maken/graveren met de lasersnijder

=== Aanwezigen ===

Om zeker te weten dat we met genoeg mensen zijn, een lijstje van revspacers die hebben toegezegd te komen om bezoekers te ontvangen:

{|class=wikitable
! Naam !! Van-tot !! Opmerkingen
|-
| Atoomnet || vroeg - laat || Begeleiden: [[CTF-challenge]]
|-
| Crashjuh || vroeg - laat || Rondleiden, 3D Printen, misschien iets met radio communicatie
|-
| Wheeze_NL || 14:00 - laat || Aanwezig, Rondleiden?
|-
| Ries || vroeg - laat || Aanwezig, Rondleiden, Goede lunch, 3d projectjes.
|-
| Mala || 10.00 - laat || Openen, Voorbereiden, Rondleiden, algemeen
|-
| Mystery || 10.00 - laat || Openen, Voorbereiden, Rondleiden, algemeen
|-
| Juerd || 14:00 - laat || Regelt lunch voor vrijwilligers (lunchpauze = 14-15h)
|-
| Oops || 10.00 - 15.00 || Displays, tours (English, French), laser-cutting, project display
|-
| Jij? || 11.00 - laat || Rondleiden, lasercutten, algemeen knutselen
|-
|-
|}

=== Promotie ===
* Wie contacteert welke krant/influencer/etc? Wie flyert in welke wijk/locatie/etc?
* Jij doet??
redactie van voorburgsdagblad.nl getipt en https://vlietnieuws.nl/schrijf-mee-aan-vlietnieuws/

Bestand:Opendag 2026 postcard rev1 NL-EN.pdf

2026-03-08T19:30:58Z

Oops: File uploaded with MsUpload

File uploaded with MsUpload

Bestand:Opendag 2026 postcard rev1 NL-EN.png

2026-03-08T19:30:58Z

Oops: File uploaded with MsUpload

File uploaded with MsUpload

Bestand:Opendag postcard rev1 NL-EN.png

2026-03-08T19:27:49Z

Oops: File uploaded with MsUpload

File uploaded with MsUpload

Bestand:Opendag postcard rev1 NL-EN.pdf

2026-03-08T19:27:49Z

Oops: File uploaded with MsUpload

File uploaded with MsUpload

OpenDag2026

2026-03-08T19:13:31Z

Oops: /* Aanwezigen */

{{Event
|Name=OpenDag2026
|DateStart=28 March 2026
|DateEnd=28 March 2026
|InfoLocation=RevSpace
|InfoOpen=11:00
}}
{{NewsItem
|Name=Jaarlijkse open Hackerspaces dag (2026)
|Date=2026-03-28
|Info=''Op zaterdag 28 maart kan iedereen weer vrij binnenlopen in een hackerspace. Tijdens deze open dag is het mogelijk om te zien wat bijvoorbeeld hacken inhoudt en te zien wat er allemaal kan in een hackerspace.''

}}

==Ticketshop==
Om de drukte te spreiden over de dag, werken we met reserveringen.

<div style="font-size: 200%">[https://pretix.eu/revspace/opendag2026/ Bestel een gratis ticket] ← klik :)</div>

== Bezoeken ==
https://revspace.nl/Bezoeken

==Flyer==
[[File:OpenDag2026Front.png|200px]]
[[File:OpendagRevback.png|200px]]
[[File:opendag_RevSpace2026.pdf]]

== Organisatie ==

Landelijk ingegeven via: https://hackerspaces.nl/open-dag/

RevSpace doet uiteraard ook mee.

=== Activiteiten ===
* Rondleidingen langs onze werkplaatsen, apparatuur en projecten.
* Op verzoek: demonstratie van apparatuur zoals lasersnijder, 3D-printer, foliesnijder, oscilloscoop, etc...
* Sleutelhanger maken/graveren met de lasersnijder

=== Aanwezigen ===

Om zeker te weten dat we met genoeg mensen zijn, een lijstje van revspacers die hebben toegezegd te komen om bezoekers te ontvangen:

{|class=wikitable
! Naam !! Van-tot !! Opmerkingen
|-
| Atoomnet || vroeg - laat || Begeleiden: [[CTF-challenge]]
|-
| Crashjuh || vroeg - laat || Rondleiden, 3D Printen, misschien iets met radio communicatie
|-
| Wheeze_NL || 14:00 - laat || Aanwezig, Rondleiden?
|-
| Ries || vroeg - laat || Aanwezig, Rondleiden, Goede lunch, 3d projectjes.
|-
| Mala || 10.00 - laat || Openen, Voorbereiden, Rondleiden, algemeen
|-
| Mystery || 10.00 - laat || Openen, Voorbereiden, Rondleiden, algemeen
|-
| Juerd || 14:00 - laat || Regelt lunch voor vrijwilligers (lunchpauze = 14-15h)
|-
| Oops || 10.00 - 15.00 || Displays, tours (English, French), laser-cutting, project display
|-
| Jij? || 11.00 - laat || Rondleiden, lasercutten, algemeen knutselen
|-
|-
|}

=== Promotie ===
* Wie contacteert welke krant/influencer/etc? Wie flyert in welke wijk/locatie/etc?
* Jij doet??
redactie van voorburgsdagblad.nl getipt en https://vlietnieuws.nl/schrijf-mee-aan-vlietnieuws/

FrenchHornMouthpieces

2026-01-07T16:58:41Z

Oops: Update with link to Thingiverse models

{{Project
|Name=French Horn Mouthpieces
|Omschrijving=3D-printing my own mouthpieces
|Status=In progress
|Picture=French Horn mouthpieces - metal and 3d-printed.jpg
|Contact=Oops
|LastUpdated=2025-05-14
}}

== Introduction ==
I am wanting to experiment a bit with 3D printing and want a somewhat "real" project.
I play French Horn and have two metal mouthpieces which I use, one of them my "regular" mouthpiece, the other which I use less frequently which is not so good for high range notes.

== Resources ==

Jane Kass has already created [https://www.thingiverse.com/thing:6002807 STL models of French Horn mouthpieces]. I've tried printing one and now need to figure out how to edit it to make it into something which fits my French Horn.

== Progress ==
I measured the printed mouthpiece from the original STL, the existing mouthpieces, and the French Horn lead pipe. Most of these measurements are now below.

I tried cutting the existing print down, partially for curiosity about what the barrel would be looking like. Having compared the measurements with the thickness of the PLA print am experimenting with a minimal-thickness barrel in my plastic mouthpiece. I worry a bit that the pressure of pressing on the mouthpiece as I play may distort or shave off layers of plastic as it is forced into the lead pipe.

I tried editing the STL (initially in Blender, now in FreeCAD) to taper the barrel of the mouthpiece. It was possible to use the STL model to give me an initial sense of the appropriate scale.

I was able to taper the thin end of the mouthpiece so it fits in the horn and it works to make music. I am experimenting with ironing the top level of the mouthpiece to have a smooth level - which also requires making the top of the mouthpiece flat.

== Process and Progress ==

Each time I printed I tended to use a different colour of PLA. In the gallery below the mouthpieces are arranged left to right (blue, yellow, red):
* the blue mouthpiece shows that I had not figured out how to get a smooth rim;
* the yellow mouthpiece shows a smoother rim and better form but the bore was still too thick to use as a mouthpiece - it fits into the horn but is too narrow to use for making music;
* the red mouthpiece is almost the last one done, with a good profile, smooth rim, but the bore is now perhaps too thin.

I reused the red mouthpiece in making the [[WaterBuffaloVuvuzela|Water Buffalo Vuvuzela]]. It makes a permanent part of that instrument and it successfully makes a lot of noise. It is quite forgiving, such that it works for a young child who doesn't otherwise play any brass instruments.

<gallery>
File:3d printed French Horn mouthpieces rims.jpg
File:3d printed French Horn mouthpieces external profiles.jpg
File:3d printed French Horn mouthpieces bores.jpg
</gallery>

Ironing has smoothed out the rim of the printed mouthpiece. I now need to work to thin the walls of the stem - the interior diameter of the bore should be around 6.1mm and currently the walls of the stem are too thick making the bore much narrower.

== Next Steps ==
I succeeded in making a mouthpiece which appears to work.

I want to clean up the files so that they could be shared (as STL and likely also as FreeCAD) and figure out how/where to make these available for others to use or tinker with. [https://eth0.nl eth0] gave me a chance to tidy things slightly and create a Thingiverse account, and I've now published one model there: [https://www.thingiverse.com/thing:7187745 RMN 0' mouthpiece] on Thingiverse.

I may work to adjust these models so that I can make a mouthpiece which could make it easier for me to player lower notes.
== Measurements ==

These measurements are based on my horn (Yamaha 664) and existing mouthpieces. If there are two numbers, it reflects a difference between the mouthpieces.

{|
|-
| Mouthpiece length || 64.6, 66.8 mm
|-
| Mouthpiece rim exterior diameter || 25.5 mm
|-
|Exterior diameter bore || 7.6 mm
|-
|Interior diameter bore || 6.1 mm
|-
| Leadpipe interior diameter || 8.00 mm
|-
| Mouthpiece outside lead pipe || 48.3, 52.8 mm
|-
| STL model ||
|-
| Mouthpiece rim exterior diameter || 25.6 mm
|-
|Exterior diameter bore || 9.3 mm
|-
| Mouthpiece length || 94 mm (approximately)
|}

CO2pod

2026-01-07T16:28:35Z

Oops: Initial description of CO2pod - a network-attached CO2 monitor built with ESP8266 and MH-Z19C

{{Project
|Name=CO2pod
|Omschrijving=Making a movable network-connected CO2 monitor
|Status=In progress
|Picture=CO2pod prototype outside.png
|Contact=Oops
|LastUpdated=2026-01-07
}}

== Introduction ==
During COVID I spent time (as did many others) working on using MH-Z19B sensors and arduino-related devices to build CO2 monitors. I am now refreshing this effort, working with an MH-Z19C and with a different CPU. This project is now being done with PlatformIO, soldering, and lessons from the fiddling with the [[N-teller]] project.

== Resources ==
I purchased the updated MH-Z19C. Looking at the [https://operame.nl/Operame Operame] project I also bought a [https://lilygo.cc/products/t-display-s3 Lilygo T-display S3]. I seem to have bricked my T-display so I'm working with the [https://www.hobbyelectronica.nl/en/product/wemos-d1-v2-usb/ D1 mini v2].

== Hardware ==

Instead of living with breadboards I soldered headers onto a project board and wired them together so that the d1 can be plugged into the board and the sensor can be plugged into the board. This should let me redo the board with less wear and tear on the d1 and the sensor, and I bought the extension cable for the sensor to enable this.

Eventually I want to build a case or a stand to hold the board and sensor, and may tack the sensor into place against the board.

== Software ==

With initial work to get the board talking to the sensor, I've now pulled across a lot of the Wifi logic from the N-teller firmware and now have a device which can be configured to connect to a wifi network, which connects to NTP to get the correct time, which keeps a rotating buffer of CO2 and temperature figures (in fact, two -- one on a short-term high frequency basis and another with a three day buffer but longer, averaged readings), and which provides these figures as CSV output through the web server.

== Next steps ==

* User configurability
* Set a label descriptor through the web interface (e.g., "Bedroom", "Living room"
* Refine use of the buffer and export of data in CSV
* Provide simple high-visibility view (by web interface) of current CO2 readings
* Make mDNS work properly for discovery by other devices on the local network
* Have on-board simple graph (probably SVG) of data accessible through web interface
* Figure out why CO2 readings seem consistently about 200ppm above expected values - try comparing with other CO2 monitors, and try using the other (notionally identical) sensor purchased
* Publish readings as mqtt so that my custom N-teller can report them
* Make it possible and practical to have two of these devices running simultaneously in different locations
* Build a frame, case or stand to hold this
* Rebuild the project board so that it's more compact
* Resolder wiring so it's more secure
* Put my firmware code on codeberg (this'll be my first repository on codeberg!)

== Disclaimers ==
I'm doing this largely to exercise various skills - building this in PlatformIO (my previous work was with the Arduino IDE), using and exploring some of the libraries and capabilities which are available, soldering...

Other people could probably do all of these things better but then I wouldn't be learning from it. But I'll probably still welcome some advice!

Bestand:CO2pod prototype outside.png

2026-01-07T15:43:36Z

Oops:

Image of a prototype CO2 pod on top of a brick wall. The CO2 sensor is attached by a ribbon cable and the main board is connected with a PCB.

OPCWtalkOctober2025

2025-10-18T07:03:08Z

Oops: /* Books */

{{Event
|Name=How to read an OPCW TAV report
|DateStart=2025-10-17 19:30
|DateEnd=2025-10-17 20:30
|Contact=Oops
|Info=A quasi-technical talk about OPCW topics by a policy person for a non-specialist technical audience
|InfoLocation=Revspace
|InfoOpen=2025-10-17 19:30 approximate start
|InfoTicket=nil
|InfoSignup=https://forum.revspace.nl/t/planning-info-session-on-opcw-technical-assistance-visits-etc/
}}

== Introduction ==

The [https://www.opcw.org OPCW] is an intergovernmental organization based in The Hague, committed to the prohibition of chemical weapons. It is created by the [https://www.opcw.org/chemical-weapons-convention Chemical Weapons Convention].

This talk will discuss a bit of what the OPCW does, how we got to have it, what it doesn't do. We'll look at some of the regular work the OPCW does (industry inspections around the world) and the special work -- investigations and fact-finding, particularly in Syria, Ukraine and the UK.

== Background reading ==

I'll add in some links here for past reports by the OPCW's fact-finding mission, technical assistance visits.

===For enthusiasts ===
* [https://www.opcw.org/opcw-e-learning OPCW's e-learning suite].

=== OPCW top level pages ===
* [https://www.opcw.org/syria Syria] (includes reports from DAT, FFM and IIT)
* [https://www.opcw.org/ukraine Ukraine] (includes three TAV reports)
* [https://www.opcw.org/resources/science-and-technology Science for Diplomats]
* [https://www.opcw.org/about/subsidiary-bodies/scientific-advisory-board Scientific Advisory Board]

=== Open Source analysis ===
* [https://www.rusi.org/explore-our-research/projects/project-anthracite-assessing-chemical-weapons-capability-dprk Project Anthracite]
* [https://www.bellingcat.com/tag/chemical-weapons/ Bellingcat on chemical weapons]

=== Other ===
* [https://www.compoundchem.com/category/chemical-warfare/ Compound Interest infographics]
* [https://www.armscontrolwonk.com/search/chemical/ Arms Control Wonk articles about chemical weapons] (mostly older)

=== Books ===

* ''Toxic'' by Dan Kaszeta
* ''The Dead Hand'' by David Hoffmann
* ''Underground'' by Haruki Murakami

=== Podcasts ===

* [https://poisonsandpestilence.podbean.com Poisons and Pestilence] by Brett Edwards
* [https://www.armscontrolwonk.com/archive/1204971/novichok-the-new-guy/ Arms Control Wonk on Novichoks]

== Outline ==

* What is the OPCW and what it tries to do
* Mechanisms explicitly set out in the CWC
* Other mechanisms which the OPCW has developed
* What the OPCW has done in the past
** Regular: [https://www.opcw.org/our-work/eliminating-chemical-weapons chemical weapons demilitarisation], [https://www.opcw.org/our-work/eliminating-chemical-weapons OCW and ACW]
** Non-routine: Syria, Libya, [https://www.opcw.org/sites/default/files/documents/EC/85/en/ec85nat02_e_.pdf Panama ACW], [https://www.opcw.org/sites/default/files/documents/EC/81/en/ec81dg15_e_.pdf Iraq] (para 13), [https://www.opcw.org/media-centre/news/2017/03/opcw-executive-council-condemns-chemical-weapons-use-fatal-incident Malaysia], UK ([https://www.opcw.org/media-centre/featured-topics/incident-salisbury Skripals], [https://www.opcw.org/media-centre/news/2018/07/opcw-provides-technical-assistance-amesbury-uk-incident Amesbury]), Germany ([https://www.opcw.org/media-centre/featured-topics/case-mr-alexei-navalny Navalny])

* What you can find to read from these things
* How to read some of them
* How policy mechanisms respond to technical outcomes

== Format ==
I will likely have slides but that’s partly to help me keep on track. I’ll try to speak for 20-30 minutes then take questions.

OPCWtalkOctober2025

2025-10-18T07:02:14Z

Oops: /* Background reading */ Added several possible references

{{Event
|Name=How to read an OPCW TAV report
|DateStart=2025-10-17 19:30
|DateEnd=2025-10-17 20:30
|Contact=Oops
|Info=A quasi-technical talk about OPCW topics by a policy person for a non-specialist technical audience
|InfoLocation=Revspace
|InfoOpen=2025-10-17 19:30 approximate start
|InfoTicket=nil
|InfoSignup=https://forum.revspace.nl/t/planning-info-session-on-opcw-technical-assistance-visits-etc/
}}

== Introduction ==

The [https://www.opcw.org OPCW] is an intergovernmental organization based in The Hague, committed to the prohibition of chemical weapons. It is created by the [https://www.opcw.org/chemical-weapons-convention Chemical Weapons Convention].

This talk will discuss a bit of what the OPCW does, how we got to have it, what it doesn't do. We'll look at some of the regular work the OPCW does (industry inspections around the world) and the special work -- investigations and fact-finding, particularly in Syria, Ukraine and the UK.

== Background reading ==

I'll add in some links here for past reports by the OPCW's fact-finding mission, technical assistance visits.

===For enthusiasts ===
* [https://www.opcw.org/opcw-e-learning OPCW's e-learning suite].

=== OPCW top level pages ===
* [https://www.opcw.org/syria Syria] (includes reports from DAT, FFM and IIT)
* [https://www.opcw.org/ukraine Ukraine] (includes three TAV reports)
* [https://www.opcw.org/resources/science-and-technology Science for Diplomats]
* [https://www.opcw.org/about/subsidiary-bodies/scientific-advisory-board Scientific Advisory Board]

=== Open Source analysis ===
* [https://www.rusi.org/explore-our-research/projects/project-anthracite-assessing-chemical-weapons-capability-dprk Project Anthracite]
* [https://www.bellingcat.com/tag/chemical-weapons/ Bellingcat on chemical weapons]

=== Other ===
* [https://www.compoundchem.com/category/chemical-warfare/ Compound Interest infographics]
* [https://www.armscontrolwonk.com/search/chemical/ Arms Control Wonk articles about chemical weapons] (mostly older)

=== Books ===

* _Toxic_ by Dan Kaszeta
* _The Dead Hand_ by David Hoffmann
* _Underground_ by Haruki Murakami

=== Podcasts ===

* [https://poisonsandpestilence.podbean.com Poisons and Pestilence] by Brett Edwards
* [https://www.armscontrolwonk.com/archive/1204971/novichok-the-new-guy/ Arms Control Wonk on Novichoks]

== Outline ==

* What is the OPCW and what it tries to do
* Mechanisms explicitly set out in the CWC
* Other mechanisms which the OPCW has developed
* What the OPCW has done in the past
** Regular: [https://www.opcw.org/our-work/eliminating-chemical-weapons chemical weapons demilitarisation], [https://www.opcw.org/our-work/eliminating-chemical-weapons OCW and ACW]
** Non-routine: Syria, Libya, [https://www.opcw.org/sites/default/files/documents/EC/85/en/ec85nat02_e_.pdf Panama ACW], [https://www.opcw.org/sites/default/files/documents/EC/81/en/ec81dg15_e_.pdf Iraq] (para 13), [https://www.opcw.org/media-centre/news/2017/03/opcw-executive-council-condemns-chemical-weapons-use-fatal-incident Malaysia], UK ([https://www.opcw.org/media-centre/featured-topics/incident-salisbury Skripals], [https://www.opcw.org/media-centre/news/2018/07/opcw-provides-technical-assistance-amesbury-uk-incident Amesbury]), Germany ([https://www.opcw.org/media-centre/featured-topics/case-mr-alexei-navalny Navalny])

* What you can find to read from these things
* How to read some of them
* How policy mechanisms respond to technical outcomes

== Format ==
I will likely have slides but that’s partly to help me keep on track. I’ll try to speak for 20-30 minutes then take questions.

OPCWtalkOctober2025

2025-10-14T18:38:53Z

Oops: Added Compound Interest infographics link

{{Event
|Name=How to read an OPCW TAV report
|DateStart=2025-10-17 19:30
|DateEnd=2025-10-17 20:30
|Contact=Oops
|Info=A quasi-technical talk about OPCW topics by a policy person for a non-specialist technical audience
|InfoLocation=Revspace
|InfoOpen=2025-10-17 19:30 approximate start
|InfoTicket=nil
|InfoSignup=https://forum.revspace.nl/t/planning-info-session-on-opcw-technical-assistance-visits-etc/
}}

== Introduction ==

The [https://www.opcw.org OPCW] is an intergovernmental organization based in The Hague, committed to the prohibition of chemical weapons. It is created by the [https://www.opcw.org/chemical-weapons-convention Chemical Weapons Convention].

This talk will discuss a bit of what the OPCW does, how we got to have it, what it doesn't do. We'll look at some of the regular work the OPCW does (industry inspections around the world) and the special work -- investigations and fact-finding, particularly in Syria, Ukraine and the UK.

== Background reading ==

I'll add in some links here for past reports by the OPCW's fact-finding mission, technical assistance visits.

For enthusiasts: [https://www.opcw.org/opcw-e-learning OPCW's e-learning suite].

OPCW top level pages:
* [https://www.opcw.org/syria Syria]
* [https://www.opcw.org/ukraine Ukraine]

Other:
* [https://www.compoundchem.com/category/chemical-warfare/ Compound Interest infographics]

== Outline ==

* What is the OPCW and what it tries to do
* Mechanisms explicitly set out in the CWC
* Other mechanisms which the OPCW has developed
* What the OPCW has done in the past
** Regular: [https://www.opcw.org/our-work/eliminating-chemical-weapons chemical weapons demilitarisation], [https://www.opcw.org/our-work/eliminating-chemical-weapons OCW and ACW]
** Non-routine: Syria, Libya, [https://www.opcw.org/sites/default/files/documents/EC/85/en/ec85nat02_e_.pdf Panama ACW], [https://www.opcw.org/sites/default/files/documents/EC/81/en/ec81dg15_e_.pdf Iraq] (para 13), [https://www.opcw.org/media-centre/news/2017/03/opcw-executive-council-condemns-chemical-weapons-use-fatal-incident Malaysia], UK ([https://www.opcw.org/media-centre/featured-topics/incident-salisbury Skripals], [https://www.opcw.org/media-centre/news/2018/07/opcw-provides-technical-assistance-amesbury-uk-incident Amesbury]), Germany ([https://www.opcw.org/media-centre/featured-topics/case-mr-alexei-navalny Navalny])

* What you can find to read from these things
* How to read some of them
* How policy mechanisms respond to technical outcomes

== Format ==
I will likely have slides but that’s partly to help me keep on track. I’ll try to speak for 20-30 minutes then take questions.

HotplateSMDSolderingWorkshop

2025-10-14T17:30:03Z

Oops: /* Participant list */ Adjusting names of Oops' guests, adding a guest

{{Event
|Name=Hotplate SMD Soldering Workshop
|URL=[[HotplateSMDSolderingWorkshop]]
|DateStart=2025-10-18 12:00
|DateEnd=2025-10-18 18:00
|Contact=The0
|Info=Using a stencil, solder paste and a hot-plate to reflow-solder SMD components
|InfoLocation=Revspace
|InfoOpen=We're open from 2025-10-18 11:35
|InfoTicket=Costs depend on what you make - see description
|InfoSignup=Add yourself to the participant list, drop a note in the Forum or contact The0
}}

Using a stencil, solder paste and a hot-plate to reflow-solder SMD components

== About this workshop ==

=== Intro ===

Surface Mounted Devices (SMDs) are small compared to Through Hole (TH) electronic components, and some electronics hobbyists find them difficult to work with: difficult to see and handle, when you sneeze, you loose them and you can not easily use them on 2.54mm raster prototyping boards.
On the other hand, SMD devices allow much more lightweight and compact projects,are most often much cheaper than TH variants, and sometimes there simply ''are'' no TH variants available of a component, requiring the use of break-out or adapter boards - both kludgy and expensive.
Also, Printed Circuit Board (PCB) prototype manufacturing prices have become much lower, CAD tools to design them have become more accessible to hobbyists, and a proper PCB is much easier, reliable and often faster to assemble than the identical circuit on a 2.54mm raster prototyping boards - especially when you make a (small) series of the same board. So, if your hobby-elecronics work-queue is long enough to wait 2 weeks for PCBs to arrive, NOT using 2.54mm raster prototyping boards and TH components makes sense and may save time and money.
The question then becomes: how can you deal - in a hobby context - with SMD components that are difficult to see handle, and that you loose when you sneeze.

=== Beginners ===

If you are an absolute beginner, you will make a badge during this workshop. The badge will take about one hour (more if a lot of people participate). It can be done much quicker. The record time is 12 minutes.

The badge workshop uses a workflow that alleviates some of the difficulties using tricks, (simple) tools, physics and appropriate materials.

Instead of solder wire, you will use solder paste to solder. You will apply the solder paste to specific areas of the PCB using a stencil. While we are doing this some physical properties of the solder paste, the metal and flux it contains and the properties of the materials in the PCB will be discussed and explained how this helps the soldering process.

Next we will use a mirror and tweezers to place the SMD components on the PCB in their correct position and orientation, with an explanation of tricks, tools, rituals and environmental factors that make this more enjoyable. In addition, while we are doing this, the function of the electronics components will be briefly explained and what to watch out for.

After we have finished placing the SMD components, the assembled PCB will be "baked" on a stove. Again, there are a few do's and dont's, but in general this part is quick, and somewhat "magical" if this is the first time you see reflow soldering in action.

If necessary, small problems will be fixed, a battery holder attached using a normal soldering iron, and the badge will be tested. Success rate is almost 100%

Finally you will return the tools, discard your garbage, clean-up your workspace and wash your hands.

=== Experienced ===

If you have some experience with the workflow and can work independently, you may opt to make a game. This will take about two hours. It can be done much quicker. The record times is 41 minutes.

If you want to make the game, it is assumed that you have worked with solder paste and a stencil before. You may pick up a few tricks, but there is less time for explanation.

After finishing you will return the tools, discard your garbage, clean-up your workspace and wash your hands.

=== Warnings ===

During this workshop you may come into contact with potentially harmful materials and tools like lead, flux and soldering equipment. Please,
* Do NOT eat or drink during the workshop UNLESS you wash your hands with soap first.
* Do NOT pick your nose, ears or rub your eyes during the workshop UNLESS you wash your hands with soap first.
* Do NOT go to the toilet during the workshop UNLESS you wash your hands with soap first.
* DO wash your hands with soap AFTER the workshop
* When using pliers to cut component leads, HOLD the wire-end you are cutting to prevent it from being launched at someone or something
* Be careful with the stove. If you touch the hot stove your hand, it may stick to it. This can be painful and may require an emergency room visit
* In general: treat tools (litteral and figurative) with respect - "accidents" can be painful

== About the Projects ==

During the workshop you will make either a badge or a 'blocktris' game. The badge contains a ''larger variety'' of different components. The game contains a ''larger number'' of components. Neither is very difficult to make, but I consider the badge better for beginners: you learn more, and it costs less.

The workshop can also be fun for more experienced people: how quickly can you make a badge or a game, and how well does it look? (hint: rework must be avoided). The current record times for succesful hotplate reflow soldering are 12 minutes for a badge and 41 minutes for the game. The record time for succesful hand soldering the badge is 21 minutes. So far no one has even attempted to hand-solder the game.

=== The Badge ===
Contains 24 blinking RGB LEDs, various support components, a microcontroller and you can actually write your name on it.

[[File:hackwinkelbadge.jpeg|thumb|alt=Badge image|image of the hackwinkel badge]]

You can see it in action in [[https://hackwinkel.nl/tag.mp4 this video]]

Both [https://github.com/hackwinkel/tag-hardware | hardware] and [https://github.com/hackwinkel/tag-software | software] of the badge are MIT licensed open source.

=== The 'blocktris' game ===

The game contains 200 RGB LEDs in an array of 20 x 10 pixels controlled by an ESP32-C3 microcontroller module, ideal for playing 'blocktris'.

[[File:blocktris.jpeg|thumb|alt=Blocktris game image|Image of the blocktris game]]

You can see it in action in [[https://hackwinkel.nl/blocktris.mp4 this video]]

Both [https://github.com/hackwinkel/10x20_LED_screen | hardware software] of the game are BSD 3-Clause licensed open source.

== Costs of this workshop ==

The Costs depend on what you do:
* Badge: 0 euro + a voluntary donation to the space each
* Game: 8 euro + a voluntary donation to the space each

== Participating ==

=== general notes ===

If you want to join the workshop, please write your name in the table below noting what you would like to make (badge and/or game). '''Add more lines if necessary. Depending of the number of people, we can do multiple sessions'''

Doors open 11:35, first session start: 12:00, last session start: 16:00

'''Note:''' The "ideal" number of participants per session depends: Beginners/kids (with adult supervision): 5-10, People with some prior experience working with stencils, solder paste and a hot-plate: ~15, Experts: 20 (tools bottleneck). The maximum for a session so far was 42, and that was only possible because there were lots of experts helping others out, but the tooling (stencil and hotplate) bottleneck resulted in an overrun of ~ 2 hours.
'''If this is your first time working with stencils, solder paste and a hot-plate OR if you are younger than 14 OR if you have never done any soldering before, put this in the remark'''s - it is definitely not a problem, but affects how the workshop flows.

=== Participant list ===
{| class="wikitable"
|+ Date Poll
|-
! # || name/nick !! 2025-10-18 !! What || remark
|-
| 0 || The0 || Yes || Both || Organizer
|-
| 1 || Host? || || Example || Example
|-
| 2 || Wheeze_NL || No || Badge || After 14:00
|-
| 3 || Juerd || Yes || Badge || After 14:00
|-
| 4 || Oops0 || Yes || Badge || Absolute beginner, done SMD once for the n-teller - Will co-host: Open up the space around 11:30 and set out materials and equipment
|-
| 5 || Oops1 || Yes || Game || Absolute beginner (under 14), only TH experience - from noon
|-
| 6 || BigMistake || Yes || Both || Beginner
|-
| 7 || noopwafel || Yes || Game || -
|-
| 8 || Mystery || Yes || Badge || Beginner
|-
| 9 || Mala || Yes || Badge || Complete beginner
|-
| 10 || Boots + 9yo || Yes || Game || All SMD experience known by The0
|-
| 11 || u103 || Yes ||Game || dno
|-
| 12 || jubo || Yes || Badge || Soldered before
|-
| 13 || JuKi || Yes|| Game || yes
|-
| 14 || Ries || Yes || Badge || Soldered before
|-
| 15 || bamidiscus || Yes || Game || Experienced, up for the lead-free challenge
|-
| 16 || Petr S0 (guest of Oops) || Yes || Game || Experienced
|-
| 17 || Petr S1 (guest of Oops) || Yes || Game || Complete beginner, under 14 - from noon
|-
| 18 || Eloy || Yes || Game || Have to leave 17:30
|-
| 17 || Example || Example || Example || Example
|}

== What if... ==

=== You can not add your name to the participant list ===

Please drop a line with your details in the [https://forum.revspace.nl/t/interest-in-a-hotpate-smd-reflow-soldering-workshop/702 | relevant forum topic]

If you can't, please get in touch with the organizer (The0), for instance on IRC (OFTC)

=== You put your name on the list but can't come ===

Shit happens. No problem, do nothing. Maybe see you next time.

=== You only noticed this workshop at a late date ===

Try getting in touch, and we may work out something. If you just show up and it is busy, then you may not be able to join. If there are places available: FCFS

=== Your badge or game doesn't work ===

You will be the first. We may try to fix it, but no refunds

HotplateSMDSolderingWorkshop

2025-10-12T17:06:29Z

Oops: Adding additional participant, adding arrival times, changing project

{{Event
|Name=Hotplate SMD Soldering Workshop
|URL=[[HotplateSMDSolderingWorkshop]]
|DateStart=2025-10-18 12:00
|DateEnd=2025-10-18 18:00
|Contact=The0
|Info=Using a stencil, solder paste and a hot-plate to reflow-solder SMD components
|InfoLocation=Revspace
|InfoOpen=We're open from 2025-10-18 11:35
|InfoTicket=Costs depend on what you make - see description
|InfoSignup=Add yourself to the participant list, drop a note in the Forum or contact The0
}}

Using a stencil, solder paste and a hot-plate to reflow-solder SMD components

== About this workshop ==

=== Intro ===

Surface Mounted Devices (SMDs) are small compared to Through Hole (TH) electronic components, and some electronics hobbyists find them difficult to work with: difficult to see and handle, when you sneeze, you loose them and you can not easily use them on 2.54mm raster prototyping boards.
On the other hand, SMD devices allow much more lightweight and compact projects,are most often much cheaper than TH variants, and sometimes there simply ''are'' no TH variants available of a component, requiring the use of break-out or adapter boards - both kludgy and expensive.
Also, Printed Circuit Board (PCB) prototype manufacturing prices have become much lower, CAD tools to design them have become more accessible to hobbyists, and a proper PCB is much easier, reliable and often faster to assemble than the identical circuit on a 2.54mm raster prototyping boards - especially when you make a (small) series of the same board. So, if your hobby-elecronics work-queue is long enough to wait 2 weeks for PCBs to arrive, NOT using 2.54mm raster prototyping boards and TH components makes sense and may save time and money.
The question then becomes: how can you deal - in a hobby context - with SMD components that are difficult to see handle, and that you loose when you sneeze.

=== Beginners ===

If you are an absolute beginner, you will make a badge during this workshop. The badge will take about one hour (more if a lot of people participate). It can be done much quicker. The record time is 12 minutes.

The badge workshop uses a workflow that alleviates some of the difficulties using tricks, (simple) tools, physics and appropriate materials.

Instead of solder wire, you will use solder paste to solder. You will apply the solder paste to specific areas of the PCB using a stencil. While we are doing this some physical properties of the solder paste, the metal and flux it contains and the properties of the materials in the PCB will be discussed and explained how this helps the soldering process.

Next we will use a mirror and tweezers to place the SMD components on the PCB in their correct position and orientation, with an explanation of tricks, tools, rituals and environmental factors that make this more enjoyable. In addition, while we are doing this, the function of the electronics components will be briefly explained and what to watch out for.

After we have finished placing the SMD components, the assembled PCB will be "baked" on a stove. Again, there are a few do's and dont's, but in general this part is quick, and somewhat "magical" if this is the first time you see reflow soldering in action.

If necessary, small problems will be fixed, a battery holder attached using a normal soldering iron, and the badge will be tested. Success rate is almost 100%

Finally you will return the tools, discard your garbage, clean-up your workspace and wash your hands.

=== Experienced ===

If you have some experience with the workflow and can work independently, you may opt to make a game. This will take about two hours. It can be done much quicker. The record times is 41 minutes.

If you want to make the game, it is assumed that you have worked with solder paste and a stencil before. You may pick up a few tricks, but there is less time for explanation.

After finishing you will return the tools, discard your garbage, clean-up your workspace and wash your hands.

=== Warnings ===

During this workshop you may come into contact with potentially harmful materials and tools like lead, flux and soldering equipment. Please,
* Do NOT eat or drink during the workshop UNLESS you wash your hands with soap first.
* Do NOT pick your nose, ears or rub your eyes during the workshop UNLESS you wash your hands with soap first.
* Do NOT go to the toilet during the workshop UNLESS you wash your hands with soap first.
* DO wash your hands with soap AFTER the workshop
* When using pliers to cut component leads, HOLD the wire-end you are cutting to prevent it from being launched at someone or something
* Be careful with the stove. If you touch the hot stove your hand, it may stick to it. This can be painful and may require an emergency room visit
* In general: treat tools (litteral and figurative) with respect - "accidents" can be painful

== About the Projects ==

During the workshop you will make either a badge or a 'blocktris' game. The badge contains a ''larger variety'' of different components. The game contains a ''larger number'' of components. Neither is very difficult to make, but I consider the badge better for beginners: you learn more, and it costs less.

The workshop can also be fun for more experienced people: how quickly can you make a badge or a game, and how well does it look? (hint: rework must be avoided). The current record times for succesful hotplate reflow soldering are 12 minutes for a badge and 41 minutes for the game. The record time for succesful hand soldering the badge is 21 minutes. So far no one has even attempted to hand-solder the game.

=== The Badge ===
Contains 24 blinking RGB LEDs, various support components, a microcontroller and you can actually write your name on it.

[[File:hackwinkelbadge.jpeg|thumb|alt=Badge image|image of the hackwinkel badge]]

You can see it in action in [[https://hackwinkel.nl/tag.mp4 this video]]

Both [https://github.com/hackwinkel/tag-hardware | hardware] and [https://github.com/hackwinkel/tag-software | software] of the badge are MIT licensed open source.

=== The 'blocktris' game ===

The game contains 200 RGB LEDs in an array of 20 x 10 pixels controlled by an ESP32-C3 microcontroller module, ideal for playing 'blocktris'.

[[File:blocktris.jpeg|thumb|alt=Blocktris game image|Image of the blocktris game]]

You can see it in action in [[https://hackwinkel.nl/blocktris.mp4 this video]]

Both [https://github.com/hackwinkel/10x20_LED_screen | hardware software] of the game are BSD 3-Clause licensed open source.

== Costs of this workshop ==

The Costs depend on what you do:
* Badge: 0 euro + a voluntary donation to the space each
* Game: 8 euro + a voluntary donation to the space each

== Participating ==

=== general notes ===

If you want to join the workshop, please write your name in the table below noting what you would like to make (badge and/or game). '''Add more lines if necessary. Depending of the number of people, we can do multiple sessions'''

Doors open 11:35, first session start: 12:00, last session start: 16:00

'''Note:''' The "ideal" number of participants per session depends: Beginners/kids (with adult supervision): 5-10, People with some prior experience working with stencils, solder paste and a hot-plate: ~15, Experts: 20 (tools bottleneck). The maximum for a session so far was 42, and that was only possible because there were lots of experts helping others out, but the tooling (stencil and hotplate) bottleneck resulted in an overrun of ~ 2 hours.
'''If this is your first time working with stencils, solder paste and a hot-plate OR if you are younger than 14 OR if you have never done any soldering before, put this in the remark'''s - it is definitely not a problem, but affects how the workshop flows.

=== Participant list ===
{| class="wikitable"
|+ Date Poll
|-
! # || name/nick !! 2025-10-18 !! What || remark
|-
| 0 || The0 || Yes || Both || Organizer
|-
| 1 || Host? || || Example || Example
|-
| 2 || Wheeze_NL || No || Badge || After 14:00
|-
| 3 || Juerd || Yes || Badge || After 14:00
|-
| 4 || Oops0 || Yes || Badge || Absolute beginner, done SMD once for the n-teller - Will co-host: Open up the space around 11:30 and set out materials and equipment
|-
| 5 || Oops1 || Yes || Game || Absolute beginner (under 14), only TH experience - from noon
|-
| 6 || BigMistake || Yes || Both || Beginner
|-
| 7 || noopwafel || Yes || Game || -
|-
| 8 || Mystery || Yes || Badge || Beginner
|-
| 9 || Mala || Yes || Badge || Complete beginner
|-
| 10 || Boots + 9yo || Yes || Game || All SMD experience known by The0
|-
| 11 || u103 || Yes ||Game || dno
|-
| 12 || jubo || Yes || Badge || Soldered before
|-
| 13 || JuKi || Yes|| Game || yes
|-
| 14 || Ries || Yes || Badge || Soldered before
|-
| 15 || bamidiscus || Yes || Game || Experienced, up for the lead-free challenge
|-
| 16 || Oops2 (guest) || Yes || Game || Complete beginner, under 14 - from noon
|-
| 17 || Example || Example || Example || Example
|}

== What if... ==

=== You can not add your name to the participant list ===

Please drop a line with your details in the [https://forum.revspace.nl/t/interest-in-a-hotpate-smd-reflow-soldering-workshop/702 | relevant forum topic]

If you can't, please get in touch with the organizer (The0), for instance on IRC (OFTC)

=== You put your name on the list but can't come ===

Shit happens. No problem, do nothing. Maybe see you next time.

=== You only noticed this workshop at a late date ===

Try getting in touch, and we may work out something. If you just show up and it is busy, then you may not be able to join. If there are places available: FCFS

=== Your badge or game doesn't work ===

You will be the first. We may try to fix it, but no refunds

OPCWtalkOctober2025

2025-10-12T17:02:41Z

Oops: Change link for where to sign-up

{{Event
|Name=How to read an OPCW TAV report
|DateStart=2025-10-17 19:30
|DateEnd=2025-10-17 20:30
|Contact=Oops
|Info=A quasi-technical talk about OPCW topics by a policy person for a non-specialist technical audience
|InfoLocation=Revspace
|InfoOpen=We're open from 2025-10-17 19:00 or earlier
|InfoTicket=nil
|InfoSignup=https://forum.revspace.nl/t/planning-info-session-on-opcw-technical-assistance-visits-etc/
}}

== Introduction ==

The [https://www.opcw.org OPCW] is an intergovernmental organization based in The Hague, committed to the prohibition of chemical weapons. It is created by the [https://www.opcw.org/chemical-weapons-convention Chemical Weapons Convention].

This talk will discuss a bit of what the OPCW does, how we got to have it, what it doesn't do. We'll look at some of the regular work the OPCW does (industry inspections around the world) and the special work -- investigations and fact-finding, particularly in Syria, Ukraine and the UK.

== Background reading ==

I'll add in some links here for past reports by the OPCW's fact-finding mission, technical assistance visits.

For enthusiasts: [https://www.opcw.org/opcw-e-learning OPCW's e-learning suite].

OPCW top level pages:
* [https://www.opcw.org/syria Syria]
* [https://www.opcw.org/ukraine Ukraine]

== Outline ==

* What is the OPCW and what it tries to do
* Mechanisms explicitly set out in the CWC
* Other mechanisms which the OPCW has developed
* What the OPCW has done in the past
** Regular: [https://www.opcw.org/our-work/eliminating-chemical-weapons chemical weapons demilitarisation], [https://www.opcw.org/our-work/eliminating-chemical-weapons OCW and ACW]
** Non-routine: Syria, Libya, [https://www.opcw.org/sites/default/files/documents/EC/85/en/ec85nat02_e_.pdf Panama ACW], [https://www.opcw.org/sites/default/files/documents/EC/81/en/ec81dg15_e_.pdf Iraq] (para 13), [https://www.opcw.org/media-centre/news/2017/03/opcw-executive-council-condemns-chemical-weapons-use-fatal-incident Malaysia], UK ([https://www.opcw.org/media-centre/featured-topics/incident-salisbury Skripals], [https://www.opcw.org/media-centre/news/2018/07/opcw-provides-technical-assistance-amesbury-uk-incident Amesbury]), Germany ([https://www.opcw.org/media-centre/featured-topics/case-mr-alexei-navalny Navalny])

* What you can find to read from these things
* How to read some of them
* How policy mechanisms respond to technical outcomes

== Format ==
I will likely have slides but that’s partly to help me keep on track. I’ll try to speak for 20-30 minutes then take questions.

OPCWtalkOctober2025

2025-10-12T16:59:30Z

Oops: /* Outline */ Updated links to several items

OPCWtalkOctober2025

2025-10-12T15:28:51Z

Oops: /* Background reading */

OPCWtalkOctober2025

2025-10-12T15:10:40Z

Oops:

OPCWtalkOctober2025

2025-10-12T15:10:06Z

Oops: Added detail and fixed formatting

OPCWtalkOctober2025

2025-10-12T14:27:36Z

Oops: Created page with "{{Event |Name=How to read an OPCW TAV report |DateStart=2025-10-17 19:30 |DateEnd=2025-10-17 20:30 |Contact=Oops |Info=A quasi-technical talk about OPCW topics by a policy person for a non-specialist technical audience |InfoLocation=Revspace |InfoOpen=We're open from 2025-10-17 19:00 or earlier |InfoTicket=NA_real |InfoSignup=Tag yourself in the forum if you'll attend. }} ## Introduction The [https://www.opcw.org OPCW] is an intergovernmental organization b..."

Weekend van de Wetenschap (2025)

2025-09-28T19:16:51Z

Oops: /* Wie is er wanneer */

{{Event
|Name=Weekend van de Wetenschap (2025)
|DateStart=4 October 2025
|DateEnd=5 October 2025
|InfoLocation=RevSpace
|InfoOpen=11:00
}}

==Bezoekers==
Boek een rondleiding via: https://pretix.eu/revspace/rondleiding/

Ben je ook een hacker? Rare vraag misschien als je bij het woord hacken direct aan criminelen en cyber denkt. De criminelen vind je bij ons niet!

Revelation Space (RevSpace) is een van de oudste en grootste Nederlandse hackerspaces. Al meer dan 15 jaar komen onze deelnemers en belangstellenden bij ons bijeen om te hacken, te maken en uit te wisselen.

Bij de rondleiding laten we je alle werkplaatsen zien die we rijk zijn. Je kunt mede-hackers ontmoeten en praten over hun projecten, en uiteraard mag je ook zelf aan een projectje werken.

Ons aanbod is altijd afhankelijk van de aanwezige deelnemers die demonstraties willen geven. Denk: Snijden met laserlicht, solderen aan elektronica, meuk uit elkaar schroeven, printen in drie dimensies.

==Organisatie==
===Wie is er wanneer===

{|class=wikitable
! Naam !! Dag !! Van-tot !! Opmerkingen
|-
| Atoomnet || Zaterdag en zondag || vroeg - laat || Solderen velleman kitjes
|-
| Bas || Zaterdag en zondag || vroeg - laat || Rondleiden, div demonstraties, en ik zet wat projectjes neer.
|-
| Oops || Zaterdag || 10:00 - 14:00 || Possible demos (Laser cutting dog tags? 3d-printing?) English and French only. May help out with Soldering demo.
|-
| Mystery || Zaterdag + zondag ovb || begin tot eind || opstarten, solderen Kids + rondleiden
|-
| Mala || zaterdag + zondag ovb || begin tot eind || opstarten, Rondleiden, ondersteunen
|-
| Molenaar || Zaterdag en zondag || vroeg - laat || solar coffee roast / middeleeuws draaiwerk (hangt van het weer af)
|-
| mrtijn || zaterdag || ca. 10u - eind van de middag ||
|-
| hansg || zaterdag *of* zondag || 10u - laat || rondleiden, ondersteunen
|-
| bamidiscus || zaterdag || 10u - middag || hacken, ondersteunen
|-
| BigMistake || Zaterdag en/of zondag || vroeg - laat || Solderen, 3d-printen, ondersteunen
|-
| JIJ?
|}