How can i find DEVEUI and DEVADDR keys of my TTGO TBEAM V1.1?

I am working with the Board called LILYGO TBEAM V1.1 and i am trying to find my devEUI and tryed everything to find it but could not find. It has not “Serial1” port so I cannot work with “Device Info” example. Can you guys help me to find it?

#include <TheThingsNetwork.h>

#define loraSerial Serial1
#define debugSerial Serial

// Replace REPLACE_ME with TTN_FP_EU868 or TTN_FP_US915
#define freqPlan TTN_FP_EU868

TheThingsNetwork ttn(loraSerial, debugSerial, freqPlan);

void setup()
{
loraSerial.begin(57600);
debugSerial.begin(9600);
}

void loop()
{
debugSerial.println(“Device Information”);
debugSerial.println();
ttn.showStatus();
debugSerial.println();
debugSerial.println(“Use the EUI to register the device for OTAA”);
debugSerial.println("-------------------------------------------");
debugSerial.println();

delay(10000);
}

You are using the Arduino library for the TTN Uno board which does nothing on a TTGO.

There is a section on the website for the TTGO, perhaps you want to read that and look for the LMIC-node as a library to use.

Can u hand that over to me please, sir. Thanks for your answer.

Maybe you can find some clues in the TTN Mapper for TTGO on GitHub. - GitHub - kizniche/ttgo-tbeam-ttn-tracker: TTGO T-Beam Tracker for TTN Mapper and TTN Tracker using US (915 MHz) and EU (868 MHz) frequencies

Use the Search option to search the forum for “ESP32 topic” (Big ESP32 … topic part 3) and for “T-Beam topic” for more information.

TTGO boards (which includes T-Beam) do not come with factory provided DevEUI and DevAddr (latter is needed for ABP activation only).