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

The security system comprises of an Arduino Uno microcontroller and a standard SIM900A based GSM/GPRS ... You can connect any intrusion detection unit (such as a light fence or a motion sensor) ... /* ...