RFM69_ATC: Automatic Transmission Control

Felix of LowPowerLab writes: There is now a new extension to the RFM69 library. It’s called RFM69_ATC aka Automatic Transmission Control. Many thanks to Tom Studwell who implemented this and shared it in the forum. The basic idea behind this extension is to allow your nodes to dial down transmission power based on the received […]

Dual-tone multi-frequency signal generator and detector

Robots wrote a open source Dual-Tone Multi-Frequency signal generator and detector for his STM32 based development board. The code is available via github. DTMF generator is based on AVR314 appnote, and the detector is my practice in signal processing using “Goertzel algorithm”. Everything is written for integer/fixedpoint arithmetics. (no floats at all)… Generator generates signal […]

HOW-TO: Learn PIC serial UART with your Bus Pirate

The Bus Pirate is a handy debugging tool, but it’s also a 16 bit PIC 24FJ64GA002 development board. You don’t need a programmer to play, just upload the firmware over USB using the Bus Pirate’s nearly-impossible-to-brick bootloader. It’s easy to go back to the original Bus Pirate firmware at any time. This demo is step […]