Library for the Si5351 clock generator IC in the Arduino environment

Custom firmware for Vaisala RS41 and Graw DFM-17 radiosondes with support for amateur radio use. Ideal for tracking high-altitude balloons. Supported modes include APRS, Horus 4FSK mode, CATS, morse code (CW) and additional digital modes like WSPR and FT8 via Si5351.

BITX40 sketch for Raduino

Arduino Si5351 library tuned for size and click free.

HAL-based Si5351 driver for STM32

Si5351 lib for STM32

WSPR beacon based on Arduino + si5351

A compact hardware device for transmitting WSPR messages based on the SI5351 clock generator, using GPS for transmission timing synchronization and automatic QTH locator calculation.

Raduino sketch v2 for bitx40 with digital BFO

All HF bands QRP CW/SSB transceiver

Time domain reflectometer. Includes Hardware, firmware and GUI in Octave. Also a diploma thesis.

Creating a public prototype of the "SWR-mouse" antenna analyzer PCB compatible with the G403 (Gainta Industries) ready-made case.

This is a simple CW beacon project based on Arduino and Si5351 clock generator. It transmits a predefined message as morse code on a fixed frequency.

Si5351 and Arduino based superheterodyne receiver

Clock generators ( Si5351 for now ) toolbox.

An interface to the Silicon Labs Si5351 clock chip

Arduino controller for portable HF transceiver with an Si5351 oscillator, WSPR, memory channels, etc

Simple BFO with Si5351A controlled by Arduino

STM32 stuff

Simple FeldHell beacon for ESP8266, with the Etherkit Si5351A Breakout Board, forked from Jason Milldrum NT7S github