LoRa reset line in SODAQ V2

1

Hello,

I am experiencing some troubles with the LoRa module occasionally. I know that one of the improvements of the V2 board is that it was included a LoRa reset line.

Does anybody know which is the corresponding pin on the board? Any pin name? Any example of how to reset the LoRa module?

Thanks and regards,

Pablo

2

Hi Pablo,

The corresponding pin is LORA_RESET
Not in the current board files

Please copy the extracted files from the zip file to %localappdata%Arduino15/packages/sodaq/variants/one
https://www.janvanloenen.com:9091/share.cgi?ssid=0KhKEzM

Example:
// RESET LORA_MODULE
pinMode(LORA_RESET, OUTPUT);
digitalWrite(LORA_RESET, LOW);
delay(10);
digitalWrite(LORA_RESET, HIGH);
delay(10);
LORA_STREAM.begin(LORA_BAUD);

Regards,
Jan

3

Hello Jan,

I wanted to make a quick step so I defined this without creating the board variant with the files you shared:

static const uint8_t LORA_RESET = (49u);

and then I paste the code that you shared. Now it seems the board is dead… like not responding and not being recognized by the Arduino Port.

Did I do anything really wrong?

Thanks,

Pablo

4

Hi Pablo,

Can you double press the reset on the base board?
This will put the board in bootloader mode. You should get a different com port to upload new code.

Regards,
Jan

5

Hello,

The solution worked! Thanks! I managed to make a factory reset and test the new code. Sometimes the initialization of LoRa fails, but I don’t manage to reproduce the error reliably. I changed the code to this other, just in case it can help:

/**
 * Hardware reset of LoRa
 */
bool resetLora() {
  debugPrintln("Hard reseting the LoRa module...");
  // LoRa reset pin
  pinMode(LORA_RESET, OUTPUT);
  digitalWrite(LORA_RESET, HIGH);
  sodaq_wdt_safe_delay(100);
  
  
  digitalWrite(LORA_RESET, LOW);
  sodaq_wdt_safe_delay(100);
  digitalWrite(LORA_RESET, HIGH);
  sodaq_wdt_safe_delay(1000);
  initLora();
}

By the way, this is the path for the Mac OS X users:
/Users/YOUR_USER/Library/Arduino15/packages/SODAQ/hardware/samd/1.6.12/variants/sodaq_one/

Thanks a lot for your help!

Regards,

Pablo

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