Cellular Shield with SM5100B

The Cellular Shield for Arduino includes all the parts needed to interface your Arduino with an SM5100B cellular module. This allows you to easily add SMS, GSM/GPRS, and TCP/IP functionalities to your Arduino-based project. All you need to add cellular functionality to your Arduino project is a SIM card (pre-paid or straight from your phone) and an antenna and you can start sending Serial.print statements to make calls, send texts and serve web pages!

 The main components of the Cellular Shield are a 60-pin SM5100B connector, a SIM card socket, and an SPX29302 voltage regulator configured to regulate the Arduino's raw voltage to 3.8V. The board's red LED indicates power. The Arduino's reset button is also brought out on the shield.

Two jumpers on the board allow you to select which serial pins interface with the cellular module - software (D2, D3) or hardware (D0, D1). There is also a 5-pin, 0.1" spaced header with connections for microphone inputs and speaker outputs. Headers are not soldered on, we recommend the 6 and 8-pin stackable headers.

The SM5100B cellular module is included with this product. It is pre-configured to 9600bps. Note: We have had a few people reporting that their modules are pre-configured to 115200bps. To change this to 9600bps please connect at 115200bps and type AT+IPR=9600.

For a neat compact Quad-band antenna we would recommend the Quad-band Cellular Duck Antenna SMA.

Or for greater gain why not use the Quad-band Cellular 9" Antenna SMA.

Documents:

• Schematic
• Sample Sketch
• SM5100B Datasheet
• SM5100B AT Command Set
• SM5100B SMS App Note
• SM5100B TCP/IP App Note

One of our customers has kindly given us the settings for using this device for GPRS in the UK using a T-mobile SIM Card Pay n Go: