LoRa 433 MHz APRS iGate and Tracker Construction

This resource details the construction of an APRS iGate and a tracker utilizing LoRa32 microcontroller boards. The project specifically employs TTGO T-Beam v1.1 boards operating on 433 MHz. Each board integrates an OLED screen, WiFi, GPS, and an SMA antenna connector. Power is supplied via an 18650 3.7 V lithium-ion battery or microUSB. The methodology involves programming the modules using Visual Studio Code with the PlatformIO plugin to load firmware and a JSON configuration file, which includes callsign and WiFi credentials. The iGate operates on 433.775 MHz and its status is verifiable on aprs.fi. This technical documentation provides a practical guide for implementing LoRa-based APRS solutions.