Sim900a datasheet pdf download
Based on the SIM900 module from SIMCOM, the GPRS Shield is like a cell Once the library is installed, create a new sketch with the following code and download You can go through the AT Commands reference manual to figure out the GSM Shield SIM900 Get Starting This GPRS Shield is compatible with all boards which have the same form factor (and pinout) as a standard Arduino Board. code With the GPRS Shield removed, download this sketch into your Arduino.