Difference between revisions of "User:Bertrik Sikken"

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* software-defined radio
 
* software-defined radio
  
Project ideas:
+
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 00:02, 31 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