New board by Elecrow

(Andreas Schroeder) #1

Yesterday I’ve got a new development board from elecrow.


unfortunately only DIO0 is connected to the µController. So i had to connect DIO1 pin at he RFM96 to unused pin 5 at the Atrmega328P to get the arduino lmic otaa example running. The pin mapping is

const lmic_pinmap lmic_pins = {
  .nss = 10,
  .rxtx = LMIC_UNUSED_PIN,
  .dio = {2, 5, LMIC_UNUSED_PIN},

Seems to use about 45µA in deep sleep mode - not bad :slight_smile:

To get further a schematic would be helpfull. Any hint?


Hi Andreas,

Send an email to and ask for the schematics. I did that also for the 32u4 from elecrow. This board misses also dio1.

(Andreas Schroeder) #3

@bvdbrule thank you for the hint. I sent an email and hope to get the schematics.

I also tried out the 32u4 boards some time ago but found that aditional to the missing DIO1 connection the i2c bus doesnt work :frowning:

(Andreas Schroeder) #4

Got the link to the schematics today.

Of course it’s much easier to connect DIO1 to GPIO5 by using J3 :wink:

The available infos can be found at: