Generic command line non-JVM Apache Kafka producer and consumer

TinyVM is a small, fast, lightweight virtual machine written in pure ANSI C.

FT8 library

uSDR implementation based on a RP2040 Pi Pico

WSPR beacon for Raspberry Pi Pico, based on pico-hf-oscillator library. It doesn't require any hardware - Pico board itself only.

Docker base SDK for Raspberry Pi Pico

Digital controlled radio frequency oscillator based on Raspberry Pi Pico (1 Hz to ~32.333 MHz band). RTTY, MFSK, freq sweep examples are included.

Pseudo Fractional PLL for RP2040

An ALSA sound driver collecting sound samples for F5OEO's rpitx.

Python AX.25 Module

A simple direct conversion receiver using the phasing method of image rejection. This is an evolution of the uDCR and the uDCR2 receivers.

The open source fox transmitter.