nothing !
if i use arduino serial monitor or sscom32, i can send my command to arduino (and arduino to gprs and so, my sms is send all is perfect), but no feedback from gprs for all commands…
In arduino serial monitor or sscom32 just my Serial.print is display …
Serial.available() always ok : read my “extern” commands
mySerial.available() nothing … : no message received from gprs shield (all AT commands)