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.
GSM SIM900A with antenna.JPG
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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
Downloads
USB Driver
- To connect GSM Modem with computer USB driver is required.
Windows USB to UART Drivers for CP2102
- For Other Operating system 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.
Datasheets
- AT Commands SIM900 (english, basic commands for text messages, voice calls will be compatible with SIM900A)
- AT Commands SIM900A (English and Chinese)
- Code Examples and other software will be uploaded soon!
For feedback, technical support and suggestions about this product, please comment below.