ITEAD SCM Sim900 Module GSM SMS GPRS Module Expansion Board ICOMSAT Antenna for Arduino

ITEAD SCM Sim900 Module GSM SMS GPRS Module Expansion Board ICOMSAT Antenna for Arduino

Description:
The GSM/GPRS expansion board is SIM900 4-band GSM/GPRS module. Provide GSM/GPRS extensions for Ard-uino main control board. After adding this expansion board, Ard-uino can send and receive short interest, as well as GPRS data communication.

Sim900 GSM/GPRS Expansion Board:
- Operating indepently: 5V/2A
- After pluged in the Arduino main board, the DC 9V/2A power supply should be availabel. Because the maximum current is 2A for GSM Shield boot and operating peak current. But the USB cannot provide this so it has to connect the power supply device.
- 4 frequency GSM/GPRS 850/900/1800/1900 MHZ
- GPRS (class10/8) standard
- GPRS (class B)
- Meet GSM (2/2+) STANDARD
- Class 4 (2W 850/90MHZ)
- Class 1 (1W 1800/1900MHZ)
- Control via AT command (GSM07. 070,07. 05 and strengthen AT command)
- STM application toolkit
- Power consumption fro sleep mode: 1.5mA
- Support MMI and keyboard/LCD, SPI/I2C/GPIO/PWM/ADC interface, RTC (Real-Time Clock)
- Full function UART interface, antenna connevtor and antenna pad
- Embedded TCP/IP protocol stack, support multi IP connection
- Operating temperature: -30~80 degree C

1. There is switch on board, you can choose SIM900 or SIM900 debug port to connect, if you select a Debug port, then must use Ard-uino hardware serial port to control. The simulated serial port is not valid. Farad capacitors supply power to the RTC module .

2. Debug toggle switch, can  connect DEBUG port of the SIM900 to the Ard-uino or  through ATMEGA8U2/FT232 connected to the PC for debug debugging

3. Compatible with 3.3V and 5V automatic level , Adaptive to 3.3V or 5V main control board, support leaf Maple and 3.3V other platforms such as Chipkit Development Board

Product schematics and manual download: click here

Package included:
- 1 x  Sim900 Module GSM SMS GPRS Module