Arduino GPRS SIMCOM SIM900 QUAD BAND GSM SHIELD
On this post it is showed the basics to work with GPRS SIMCOM SIM900 quad band GSM shield fully compatible with Arduino. This shield has the following features: Quad-Band 850/900/1800/1900MHz GPRS multi-slot class 10/8 GPRS mobile station class B Compliant to GSM phase 2/2+ Class 4 (2W@850/900MHz) Class 1 (1W@1800/1900MHz) Control via commands (GSM 07.07, 07.05 and SIMCOM enhanced AT Commands) Short message service Free serial port selection 3.5 inch standard sonic sockets for MIC and phone Operation temperature: -40℃…
