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.

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.

HAL-based Si5351 driver for STM32

Arduino Si5351 library tuned for size and click free.

All HF bands QRP CW/SSB transceiver

Si5351 lib for STM32

Si5351 and Arduino based superheterodyne receiver

WSPR beacon based on Arduino + si5351

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.

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

Raduino sketch v2 for bitx40 with digital BFO

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

A fully open sourced drop-in replacement for the DL2MAN Sandwich

Amateur Radio Single Sideband Transceiver Controller for Arduino and SI5351 Clock generator. Includes Dual VFO, single or double band support for 20 and 40 meter bands, CAT control, optional S-meter, multiple supported displays including options include 20x4 LCD, Color TFT, and 2.8" Nextion Touch Screen

Simple BFO with Si5351A controlled by Arduino

esp32-genesis-player (work in progress)

All HF bands QRP CW transceiver

High Altitude Balloon tracker for Arduino and Si5351, using WSPR protocol and Morse code.

ポータブルでスタンドアローンなソフトウェアラジオ，AM/FMタイプ

Arduino Si5351 VFO Code with 10 MHz Calibration and Iambic Keyer for Tuna Tin S QRP CW Transmitter

VFO based on Si5351 and Arduino controlled by SmartPhone

Si5351B/C Breakout Board

Clock generators ( Si5351 for now ) toolbox.

Scalar network analyzer developed to measure frequency response of filter, amplifier, transmission line and other frequency-dependent circuit.

Digital Variable Frequency Oscillator to be applied to Citzen Band/Amateur Radio transceivers.

An interface to the Silicon Labs Si5351 clock chip

QRP CW Transceiver

Rectangular and sine generator with Si5351 working up to 200 MHz

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