Send data to the SoftModem breakout board for Arduino using JavaScript

Integrate cutting-edge LLM technology quickly and easily into your apps

This is nano minimal version of LibAPRS for tracker devices

An APRS library for the Arduino IDE

ESP32APRS is a APRS Internet Gateway + TNC Built In that is implemented for Espressif ESP32 processor.

Yet another library for generating CW (Morse) signals? Yes, why not, if this library is based on a different concept of operation.

Protocol buffer and JSON schema based on the amateur radio data interchange format (ADIF)

JavaScript Webpage to plot ADIF (Amateur Radio QSOs) on a Map

A small tool to compute antenna radiation patterns with WSPR

A collection of C libraries for Raspberry Pi Pico (RP2040) and Raspberry Pi Pico 2 (RP2350)

DIY Automatic Battery Charger Using RP2040

Teensy4.X with PJRC audio card Arduino based SDR Radio project.

The Arduino Library Manager Registry

Cloudlog is a web-based amateur radio logging application built with PHP and MySQL. It supports a wide range of station logging activities, from HF to microwave, and integrates with companion tools…

WSPR receiver on Raspberry PI

A new, customizable Arduino NMEA parsing library

C library for converting between latitude/longitude and Maidenhead locators

Code for the "Bare Metal Series" videos

CubeSatSim, the AMSAT CubeSat Simulator

JavaScript Morse Code Library (mirror of https://git.fkurz.net/dj1yfk/jscwlib)

Prototype for a WSPRnet UI that looks like an old CRT computer display

OpenCW Keyer MK3 hardware based on Seeed Studio XIAO RP2040

Raspberry Pi WSPR transmitter using NTP based frequency calibration

Support repository for the 'Digital Radio Receiver' / 'FT8 Decoder' / 'FT8 Radio' app.

iRobot Roomba Control via BT/Android

Ham Radio All-in-one-Cable

Use your Rasperry Pi Pico and Android Phone as an Oscilloscope and Logic Analyzer