This is a repository for all things IBM 1620.

The Illustrated TLS 1.3 Connection: Every byte explained

An open source EchoLink/AllStarLink implementation that runs on a simple microcontroller.

An extensible command shell for Arduino.

Compile and run Arduino programs natively on Linux, MacOS and FreeBSD.

Library for the Si5351 clock generator IC in the Arduino environment

STM32 library for working with OLEDs based on SSD1306, SH1106, SH1107 and SSD1309, supports I2C and SPI