No Response from RN module - Arduino UNO + RN2483A

1

Hi ,

I have just put my Arduino and RN2483A RM105 (868Mhz) LoRa module together as shown here How to build your first TTN node: Arduino + RN2483

Everything works as expected when I am using this https://github.com/jpmeijers/RN2483-Arduino-Library library. I was successful in sending my data to the Gateway. But I need to change my frequency from 868 to 865 to 867 (Indian standard)

And that’s when I found this library https://github.com/TheThingsNetwork/arduino-device-lib/tree/master/examples from Things network seems to have an option to easily change my frequency. So I followed the instructions given here https://www.thethingsnetwork.org/docs/devices/arduino/usage.html but I just can’t get it to work.

The same hardware works for jpmeijers’s code so I take that I am good with connections. I have also included a software serial and made sure baud rates are fine. When I run the code it says “–PERSONALIZE” and then after some time it says No response from RN Module

What could be the reason? I am ready to provide any more details if required.

2

Not necessarily. Each library needs to know which serial port to talk to, and the defaults might be different. Did you check the following?

#define loraSerial Serial1
#define debugSerial Serial

(It seems the debugSerial works for you, but what about loraSerial?)

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3

[Update] I got it working for the European Frequencies

After comparing both the codes and libraries I notice that jpmeijers’s example code used Arduino D12 pin to reset the RN module but nothing like that was found in the TheThingsNetwork library so I added the below code

  pinMode(12, OUTPUT);
  digitalWrite(12, LOW);
  delay(500);
  digitalWrite(12, HIGH);

right after initializing the setup() and before the serial begin lines.

This made the program work and I was able to get the output on the device page. But I tried the same for Indian frequency by changing TTN_FP_EU868 to TTN_FP_IN865_867 and then things dint work.

However, the serial monitor shows everything to be working fine
image

So I believe this has something to do with my gateway (Liard RG186). So Maybe I should start a separate thread for that