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: