Hello! Looking for a ready programm where a stored text is send once to a stored tel. number when arduino get powerd. Using arduino uno and original arduino gsm shield. I saw it once at youtube but cant find it now. Does some one know such a reday programm GR
That's very difficult - this might help.
thanks for the comments. The problem I have solved. Unfortunately in the learning section and not in the examples there is the programm: https://www.arduino.cc/en/Guide/ArduinoGSMShield#toc9 i need. this works only using externerl power for ARDUINO and not with the Telefonica SIM. In addition I put a delay 1000 to gif time to restarting the shield.
Using a other SIM it works perfekt. By powering the ARDUINO with the attached shield it sends an SMS