User:Bertrik Sikken: Difference between revisions
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* software-defined radio | * software-defined radio | ||
Old project ideas: | |||
* do cool stuff with NRF24L01+ modules, e.g. connect one to the SPI bus of a Raspberry Pi | * do cool stuff with NRF24L01+ modules, e.g. connect one to the SPI bus of a Raspberry Pi | ||
* experiment with [http://mqtt.org MQTT], a light-weight publish/subscribe framework for telemetry data | * experiment with [http://mqtt.org MQTT], a light-weight publish/subscribe framework for telemetry data | ||
| Line 22: | Line 22: | ||
** I've tried direct correlation, works but sometimes gives errors on bat calls with little frequency sweep | ** I've tried direct correlation, works but sometimes gives errors on bat calls with little frequency sweep | ||
** Planning to try correlation of only the amplitude data (derived with a Hilbert transform) | ** Planning to try correlation of only the amplitude data (derived with a Hilbert transform) | ||
New project ideas: | |||
* Use two old satellite dishes to allow speech to be transferred over some distance | |||
** Figure out focal point | |||
** Create some kind of dish mount | |||
* Reverse engineer the digital oscilloscope at revspace | |||
** Figure out screenshot image format | |||
** Try to find if there are other commands than the "send screenshot" command | |||
* More LedBanner audio visualisations | |||
* Create a RFM69HW TNC, based on code by flok | |||
** Remove 'flok' framing, make it comply with KISS protocol | |||
Revision as of 22:02, 30 July 2014
| User info Bertrik Sikken | |
|---|---|
| Name | Bertrik Sikken |
| Nick | bertrik |
| Tagline | heb ik niet |
Studied Electrical Engineering at Twente University.
Main interests:
- reverse-engineering things (USB stuff, mp3 players), working on http://rockbox.org
- studying bats and making electronics for recording/listening to bat sounds
- software-defined radio
Old project ideas:
- do cool stuff with NRF24L01+ modules, e.g. connect one to the SPI bus of a Raspberry Pi
- experiment with MQTT, a light-weight publish/subscribe framework for telemetry data
- put the things above together in some kind of home automation project
- build a colinear antenna out of RG-6 coaxial cable for the 70cm band (for receiving high-altitude balloons)
- more radio stuff with the ham-it-up
- implement dominoex/thor radio mode for a balloon payload, perhaps build a light-weight reusable library
- come up with an algorithm to determine position/direction of bats as they pass a set of ultrasonic microphones, see StereoBatRecorder
- I've tried direct correlation, works but sometimes gives errors on bat calls with little frequency sweep
- Planning to try correlation of only the amplitude data (derived with a Hilbert transform)
New project ideas:
- Use two old satellite dishes to allow speech to be transferred over some distance
- Figure out focal point
- Create some kind of dish mount
- Reverse engineer the digital oscilloscope at revspace
- Figure out screenshot image format
- Try to find if there are other commands than the "send screenshot" command
- More LedBanner audio visualisations
- Create a RFM69HW TNC, based on code by flok
- Remove 'flok' framing, make it comply with KISS protocol