The SIM900 GSM/GPRS shield is compatible with Arduino. It is based on the SIM900 module from SIMCOM. Allows you to send SMS, MMS, GPRS and audio via UART using AT commands. It has 12 GPIOs, 2 PWMs and buit-in ADC of the SIM900 module.

Quad Band: 850; 900; 1800 and 1900 MHZ, so it should work on GSM networks in all countries. The shield has microphone and headphone jacks for phone calls.

GSM stands for Global System for Mobile Communications and is the global standard for mobile communications.

GPRS stands for General Packet Radio Service. GPRS is a mobile service on the 2G and 3G cellular communication.

APPLICATIONS:

• Connect to the Internet over GPRS network
• Send and receive SMS
• Place and receive phones calls

Key features of the shield:

• Compatible with Arduino and clones
• Based on SIM900 module from SIMCOM
• Allows you to send SMS, MMS, GPRS and Audio via UART using AT commands.
• It has 12 GPIOs, 2 PWMs and buit-in ADC of the SIM900 module
• Quad Band: 850; 900; 1800 and 1900 MHZ, so it should work in all countries with GSM (2G) networks
• Control via AT commands
• Supports RTC (real time clock) – it has a holder for a 3V CR1220 battery at the back
• Has microphone and headphone jacks for phone calls

Note; Picture might appear a bit different from actual product.

Package list:

1x SIM900 GSM/GPRS Shield

1x GSM/GPRS antenna