While [Ilias Giechaskiel] was waiting for his SIM900 shield to arrive, he decided to see what he could do with an old Nokia 6310i and an Arduino. He was researching how to send automated SMS text ...

Posted in Arduino Hacks, Cellphone Hacks, home hacks, Microcontrollers Tagged freeduino, gsm, sms, sms messages, temperature, temperature-control ← Zero Gravity (sort Of) On A Budget ...

GSM-Based-Voltage-Alert-System-using-Arduino-SIM800L This project monitors voltage using a potentiometer connected to an Arduino. When the voltage reaches 4.8V or higher, the system automatically ...

The GSM Shield also includes a Telefonica SIM card that includes a worldwide data tariff which can be used anywhere there is a cellular signal.