LoRa ESP32 KISS Bluetooth modem (for APRSDroid or aprs.fi iOS) + APRS-IS RX/TX iGate over WiFi + Digipeater + DV (with Codec2 Walkie-Talkie)

Arduino based LoRa KISS TNC

Single sketch LoRa Arduino TNC KISS modem for APRS or AX.25 networks

Arduino Amateur Radio NRF24L01 2.4 GHz USB serial KISS TNC (terminal node controller) for AX25 packet networks

APRS LoRa

Simple Bluetooth KISS AFSK1200 TNC based on LibAPRS

Simple standalone APRS tracker based on LibAPRS with GPS module, screen and rotary encoder

Simple Bluetooth low energy UART interface for KISS (APRS) TNC

Arduino UART KISS AFSK1200 TNC Modem

Unescaper C++ library for KISS special characters