GitHub repository: mobilinkd/NucleoTNC
Primary language: C
Description: The Nucleo TNC is a breadboard implementation of the Mobilinkd TNC3 using a STM32L432KC Nucleo32 board. This TNC faithfully implements the audio section and EEPROM storage of the TNC3. It omits the battery charging and Bluetooth components of the TNC3. It presents as a KISS TNC over a USB serial port.  This repository contains the build instructions, KiCAD schematics, and firmware source code.