Sausage radar. Simple doppler radar that fits into a sausage can. Named after "Wurstblinker" from the german movie Werner, as it also is meant to be mounted on a motorcycle as an alternative to the speedometer.

Required hardware

RSM2650 Radar movement alarm unit (this probably is an Innosent IPS-265)

• http://www.produktinfo.conrad.com/datenblaetter/500000-524999/506343-da-01-en-RADARBEWEGUNGSM__MOD__STEREO_4_75__5_25V.pdf
• https://www.innosent.de/fileadmin/media/dokumente/datasheets/IPS-265.pdf

1bitsy STM32F415 on a tiny breakout board

• https://1bitsy.org/

Used Simpson Voltmeter 5V as analog dial.

• https://www.google.de/search?q=simpson+5v+ac&tbm=isch

Generic powerbrick to 5V

• e.g. TI TPSM84205

A JTAG debugger.

• e.g. Black Magic Probe

Required software

Only arm-none-eabi-gcc.

Further plans and ideas

• FMCW / Range Doppler (minor hardware change, complex firmware changes)

  The current antenna module (RSM2650) can be replaced with a module that supports a tuning voltage. Then, FMCW and Range-Doppler could be done. The tuning voltage could be supplied with the STM32 DAC, which already has some support code in the git history.

• Improved signal quality and range (complex hardware changes)

  The analog frontend currently is a simple opamp amplifier with decoupling and biasing. Options are to increase the amplification, pick better opamps or dedicated LNAs. Automatic gain might me an option with that.

• USB waveform output (simple firmware changes)

  Output both I and Q as a data stream via USB, so a connected computer can use them.

Compiling

Clone first: git clone --recursive https://github.com/dpiegdon/wurstradar.git

Then build libopencm3: cd wurstradar/libopencm3 && make

Then build the firmware: cd ../src && make - you can set the measurement angle and its proper doppler frequency via commandline: make DOPPLER_HZ_PER_POINT1_KPH=314 MEASUREMENT_DEGREE=45

Flash it to the 1bitsy. E.g. with a Black Magic Probe.

Team

• David Owczarek - david dot owczarek at googlemail dot com - hardware

• David R. Piegdon - @dpiegdon - concept, firmware, hardware and assembly

• Florian Schwanse - florian at schwanse dot de - 3d printed parts and case

• Frank Terbeck - @ft - concept and hardware

• Iqbal Maraqa - iqbal underscore maraqa at hotmail dot com - analog dial face

• Manoel Brunnen - @mbrunnen - firmware

• Martin Gritzan - @mgritz - firmware

• Sebastian Moenninghoff - spsm at mailbox dot org - 3d printed parts