a simple monitor to test the signal of an LoRa APRS tracker
it shows the callsign and RSSI of received stations
HELTEC WiFi Lora 32(V2) Board
load the project with Arduino IDE
Board Definition: https://github.com/Heltec-Aaron-Lee/WiFi_Kit_series/releases/download/0.0.5/package_heltec_esp32_index.json
Board: WiFi LoRa 32(V2)
Region: EU433
U8g2 by Oliver (Graphics Library for Displays)
compile and flash into Heltec board, then watch the display:
Callsign min-RSSI actual-RSSI max-RSSI
the display can show up to 6 different callsigns, the last RXed callsign is highlighted