View source for GSM SIM900A USB Sheild ← GSM SIM900A USB Sheild

[[Category:Wireless]]


'''''GSM SIM 900A USB shield is a handy solution for your GSM/GPRS interface needs. You may connect it to a Laptop/Desktop computer with USB or RS232 connection. Also there is a TTL breakout for directly connecting it to microcontrollers like AVR, Arduino, PIC, ARM etc.'''''
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=Specifications: GSM SIM900A USB SHIELD=
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* GSM/GPRS Module: SIMCOM SIM900A
* On board Interfaces
**USB (usb to serial using CP2102)
**RS232 with MAX232
**TTL pin breakout (RXD,TXD,GND)
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=SIM 900A GSM GPRS Module feature=
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General features <br/>
•Dual-Band 900/ 1800 MHz<br/>
•GPRS multi-slot class 10/8<br/>
•GPRS mobile station class B<br/>
•Compliant to GSM phase 2/2+<br/>
– Class 4 (2 W @900 MHz)<br/>
– Class 1 (1 W @ 1800MHz)<br/>
•SAIC (Single Antenna Interference Cancellation) 
support <br/>
•Dimensions: 24* 24 * 3 mm<br/>
•Weight: 3.4g<br/>
•Control via AT commands (GSM 07.07 ,07.05 and   
SIMCOM enhanced AT Commands)<br/>
•SIM application toolkit<br/>
•Supply voltage range : 3.2 ... 4.8V<br/>
•Low power consumption: 1.0mA(sleep mode&BS -PA-MFRMS=9 )<br/>
•Operation temperature: -40°C to +85 °C<br/>
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= Default Settings on the board=
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* The baud rate is set to 9600 when we ship the board. You may change it with AT+IPR = 115200.
* The echo of characters is turned on by default. 
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=Downloads=
[http://exploreembedded.com/wiki/images/b/b8/SIM900.pdf Schematic]
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==SIM 900 AT commands==
[http://exploreembedded.com/wiki/images/a/a8/SIM900_AT_Command_Manual_V1.03.pdf SIM900_AT_Command_Manual_V1.03.pdf]
==USB Driver==
*To connect GSM Modem with computer USB driver is required, please download from [http://www.silabs.com/products/mcu/pages/usbtouartbridgevcpdrivers.aspx Silicon Labs website.]

==GUI for windows==
*[[Xplore GSM]] is a Windows GUI and command line software that can be used to test and evaluate the GSM USB Shield.

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'''''For feedback, technical support and suggestions about this product, please comment below.'''''
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