See The Wiki Page for all the info!

JAWBONE = Just Another WSPR Beacon Of Noisy Electronics

Custom PCB and software for a very light RP2040 based WSPR Beacon intended for tracking high altitude superpressure balloons (aka Pico Balloons).

This is an evolution of my pico-WSPRer project. It is very similar except JAWBONE uses the MS5351 clock generator chip instead of abusing the RP2040's internal PLL oscillator. Also, this project is only intended to be used with a custom PCB, there is no longer an option to assemble it from a RaspberryPi Pico and external components (it is probably still possible, but not tested or documented).

See The Wiki Page for all the info!

Pre-compiled uf2 file is in the /build folder. EasyEda project file and gerbers, bom, PnP etc in the /PCB folder.

fully assemble tracker weights only 2.2 gram! This is an early rev without USB connector. Current version has a breakaway USB-C connector for config and programming.