Your cart is empty

SIM908 GSM/GPRS/GPS Modem with Free GPS and GSM Antenna

  • Model: SIM908
  • Shipping Weight: 0.1lbs
  • Units in Stock: 9
  • Manufactured by: Graylogix

Rs3000  Rs1900
Save: 37% off

Product Description

SIM908 module is a complete Quad-Band GSM/GPRS module which combines GPS technology for satellite navigation. The compact design which integrated GPRS and GPS in a SMT package will significantly save both time and costs for customers to develop GPS enabled applications. Featuring an industry-standard interface and GPS function, it allows variable assets to be tracked seamlessly at any location and anytime with signal coverage. Free GSM Antenna and GPS Antenna.

Product Features
  • Dual SMA Antenna Connector for GSM and GPS
  • Dual Serial Port for GSM and GPS GSM standard AT Commands
  • GPS NMEA Protocol
  • Network and Ring LED Push type Rugged Simcard Holder
  • Inbuilt 3A Power supply, with input voltage r0ange 5V to 30V A/C or DC RTC Option
  • Power Supply: 12V 2A DC (Recommended)
Place the simcard in the sim holder. Press and hold the power button on for 3 seconds, You will notice the blue colour network LED blinking at the frequency of 1 sec. Once it acquires the network the frequency of the blue LED reduces to 3 sec, now it blinks every 3sec once. Now connect the computer serial port to GSM UART serial port. Configure the HyperTerminal or any other terminal software at 9600 baud rate. Now start with At command as follows:
At (Press Enter)
OK( This is the response you get on the screen)
At+ipr=9600 (Press Enter)
At&w ( Press Enter)
Now power down the modem and then again power up using the power button Now GPS is ready please type the following commands
at+cmgf=1 (Press Enter)
at+cmgr=1(Press Enter)
At+cmgs="Mobile phone number" (Press Enter)
At+cgpsipr=9600 (Press Enter)
At+cgpspwr=1 (Press Enter)
At+cgpsrst=1 (Press Enter)

Now Disconnect the DB9 port cable from GSM and connect to GPS UART Port. GPS NMEA Protocol Data follows. (Do not power down, just switch over the UART Connectors). On board TTL pins can be used to interface with the microcontrollers. (Note, better to use level shift convertors in between the devices).



Download Board Dimension

Download Design Guide

Download AT Commands

Add to Cart:





This product was added to our catalog on Sunday 07 January, 2007.