Hoping someone can help me with what is a frustrating, and probably a simple problem. I have a Feather M0, with an integrated RFM9x Lora board that I'm trying to connect to a Pi Zero with an Adafruit RFM9x bonnet. I have a simple example program that I've successfully used to pass messages from the Feather to the Pi. However, as soon as I disconnect from my computer, and power up from a wall-wart it seems to no-longer work. I believe I've isolated the problem to this section of code:
Code: Select all
void setup()
{
pinMode(RFM95_RST, OUTPUT);
digitalWrite(RFM95_RST, HIGH);
Serial.begin(115200);
while (!Serial) {
digitalWrite(LED_BUILTIN, HIGH); // turn the LED on (HIGH is the voltage level)
delay(250); // wait for a 1/4 second
digitalWrite(LED_BUILTIN, LOW);
delay(1);
}
Thanks,
Dw