pinMode(3, INPUT); //low level from modem for INT0
attachInterrupt(0, blink, LOW);
If your modem is connected to pin 3, why do you hook the interrupt to pin 2?
pinMode(3, INPUT); //low level from modem for INT0
attachInterrupt(0, blink, LOW);
If your modem is connected to pin 3, why do you hook the interrupt to pin 2?