Review Details

IComSat GSM / GPRS SIM900 Module Expansion Board Shield with Antenna For Arduino Mega

Product Review (submitted on September 29, 2014):

I used this in Mexico with IDE 1.0.5, aPS = 9VDC 1500mA and works fantastic. The documentation is excellent while I used my own AT Command (never used published libraries) and I was able to communicate with SIM900, send sms, make automated calls, etc...