70cm Amateur Radio Fox Hunt CW receiver - Heltec V3 ESP32 LoRa Board
Portable rotator for amateur satellite tracking
Command-line calculator for Maidenhead- (QTH-, QRA-) Locators.
Alert and filter QSO for WSJT-X FT8 FT4
50 most common transistor specs
An impressive early implementation of TCP/IP
a small collection of tools for aprs use and mainly xastir