Something Wrong in Code

PaulS:

  Serial.println("Goodnight moon!");

Serial.println("AT+CMGF=1");



What the hell is the GSM modem supposed to do with "Goodnight moon!"?

This Massage to tell me the gsm is working !!

but when i useing Myserial.println not working idk !!

Can u tell me how i can use My GSM becuse everything in tutorial GSm Shield And i dont have !!