I am doing a LoRa based project based on the Atmega328, I did my initial test using the Arduino uno & LoRa SX1278 module and everything works fine. I then moved tge project to a bare minimum arduino circuit (project is battery powered and want to save on battery power), the arduno starts up but the LoRa module cannot send or recieve anymore and when i check i see that the LoRa module keeps pulling its input voltage to 4.2V from the 3.3v on its input.