GSM SIM900A Module (5V) w/ TTL & RS232 Interface

  • Was  RM100.00 
  • RM60.00

  • Product Code: GSM SIM900A StandardSIM
  • Availability: In Stock
GPRS module is a breakout board and minimum system of SIM900A Dual-band GSM/GPRS module. It can communicate with controllers via AT commands (GSM 07.07 ,07.05 and SIMCOM enhanced AT Commands). This module supports software power on and reset.
 
Features
  • Based on SIMCOM SIM900A chip
  • Dual band GSM/GPRS module
  • Serial port circuit with protection
  • Control via AT command
  • SMS text or PDU mode
  • Signal and RING LED indicator.
  • Compatible with ARDUINO, RASPBERRY PI, ARM, AVR, PIC, 8051, etc.
  • Can be directly connected to computer via Serial Port (Use GSM Tester or write your own Software)
  • Best suited for GSM based Microcontroller Projects (better than SIM300 and other GSM Modems)
 
Specifications
  • Rated operating voltage: 5V DC
  • Low power consumption: 1.5mA (sleep mode)
  • Dual-band: 900/1800 MHz
  • Default baud rate: 9600bps
  • Embedded TCP/IP stack
  • GPRS multi-slot class 10/8
  • GPRS mobile station class B
  • Meet GSM 2/2 + standards
  • Class 4 (2 W @ 900 MHz)
  • Class 1 (1 W @ 1800MHz)
  • Controlled by AT commands(GSM 07.07, 07.05 and SIMCOM enhanced AT command set)
  • Antenna interface circuit (SMA bend female port)
  • SIM card circuit (Flip SIM slot)
  • Operating temperature range: -40 ° C to +85 ° C.
  • Size: 24 x 24 x 3 mm
  • Weight: 26g
  • 4 * 3.5mm fixture hole

 

 
Package Included
1 x SIM900A
1 x Power Cable
1 x Antenna
 

Pinout

  • VCC5 = 5V supply in
  • GND = Ground
  • 3VT = TXD (Output, 3.3V)
  • 3VR = RXD (Input, 3.3V)
  • 5VT = TXD (Output, 5V)   : Connect this pin to Arduino receive pin
  • 5VR = RXD (Input, 5V)     : Connect this pin to Arduino transmit pin
  • VCC = Unuse
  • GND = Ground
  • DB9-2 = RS232 TX (Output)
  • DB9-3 = RS232 RX (Input)
  • GND = Ground

 

Tutorial:

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