LoRa32u4II EV_TXCOMPLETE not called



I’m testing with the LoRa32u4II.

The node joins fine, sends the payload one time, then never sends again, as EV_TXCOMPLETE is never called.

Any idea?

(Bhuism) #2

Connect and configure DIO1 of the radio to a pin, it signals tx complete I believe


Thanks. I soldered the DIO1 to D1 and now the damn thing works!
For reference, DIO1 is located on the back side of the board.

Here’s the LMIC pin mapping:

const lmic_pinmap lmic_pins = {
    .nss = 8,
    .rxtx = LMIC_UNUSED_PIN,
    .rst = 4,
    .dio = {7, 1, 2},

(Bhuism) #4

Ha! didn’t know that :slight_smile:

(Arjan) #5

Just for future reference, Matthijs has documented the required pins quite nicely at https://github.com/matthijskooijman/arduino-lmic#dio-pins

(Couin) #7

As DI02 is not connected (and does not need to) :wink:

Is it working fine?