GSM SIM900A USB Sheild Revision as of 09:19, 4 April 2016 by Sharana (Talk | contribs) (diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)

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

• GSM/GPRS Module: SIMCOM SIM900A
• On board Interfaces
  • USB (usb to serial using CP2102)
  • RS232 with MAX232
  • TTL pin breakout (RXD,TXD,GND)

SIM 900A GSM GPRS Module feature

General features
•Dual-Band 900/ 1800 MHz
•GPRS multi-slot class 10/8
•GPRS mobile station class B
•Compliant to GSM phase 2/2+
– Class 4 (2 W @900 MHz)
– Class 1 (1 W @ 1800MHz)
•SAIC (Single Antenna Interference Cancellation) support
•Dimensions: 24* 24 * 3 mm
•Weight: 3.4g
•Control via AT commands (GSM 07.07 ,07.05 and SIMCOM enhanced AT Commands)
•SIM application toolkit
•Supply voltage range : 3.2 ... 4.8V
•Low power consumption: 1.0mA(sleep mode&BS -PA-MFRMS=9 )
•Operation temperature: -40°C to +85 °C

Default Settings on the board

• 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.

Downloads

Schematic

SIM 900 AT commands

SIM900_AT_Command_Manual_V1.03.pdf

USB Driver

• To connect GSM Modem with computer USB driver is required, please download from 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.

Purchase Online from our main site

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