try to find the baudrate of the bluetooth module (not tested)

try_bluetooth_function.c

void tryBT()
{

	delay(20000);
	led_green_flash();
	long baudrates[5] = {9600, 19200, 38400, 57600, 115200};
	String inputString="";
	for (int i =0; i< 5; i++)
	{
		DebugSerial.begin(baudrates[i]); // debug output
		
		DebugSerial.println("AT");
		while (DebugSerial.available())
		{
			char inChar = (char)DebugSerial.read();
			inputString += inChar;
		}
		if (inputString == "OK")
		{
			LogSerial.printf("found baud: %ld", baudrates[i]);
			
		}
	
	}
	
}