MLRS E77 DUAL E28

The mLRS project provides a high performance long range radio link based on open source LoRa 2.4 GHz & 915/868 MHz & 433 MHz/70 cm, providing bidirectional serial connectivity combined with full remote control capabilities.

Note: The push button is connected from GND to PA15, you may need to edit the fw if you only use 1 E77-900M22s module (with fw E77 dual E28 no need to edit)