LoRa32u4II EV_TXCOMPLETE not called

[j4zzcat]

Hi,

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]

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

[j4zzcat]

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]

Ha! didn’t know that

[arjanvanb (Arjan)]

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

[Couin]

@bluejedi

// Set pin mapping for SX127x/RFM9x. const lmic_pinmap lmic_pins = { .nss = 8, .rxtx = LMIC_UNUSED_PIN, .rst = 4, .dio = {/dio0/ 7, /dio1/ 1, /dio2/ LMIC_UNUSED_PIN} };

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

Is it working fine?

[fanysoft]

Same problem here with board version 1.3.
According to BSFrance support : there is no need to solder, because DIO1 is closed by default.
My pin mapping :
const lmic_pinmap lmic_pins = {
.nss = 8,
.rxtx = LMIC_UNUSED_PIN,
.rst = 4,
.dio = {/dio0/ 7, /dio1/ 1, /dio2/ LMIC_UNUSED_PIN}
};
Anyone ?

[BoRRoZ]

you’ve posted that yesterday here too, no need to kick this one year old topic

Big LoRa32u4 boards topic

according to reply from BSFrance support for 1.3. version : No solder pad need to be soldered for using the board, DIO1 is closed by default if you need to use LMIC, also compared to V1.2 and except for the sensors options that are not mounted on your particular board the difference is that the LiPo charger and the voltage divider for battery monitoring are controlled by a MOS from PB0 (active low).