SPECIFICATIONS AND FEATURES

Type: GSM GPRS Module

Series: sim900

Dimensions: 50mm x 49mmVCC

Operating voltage: 5V

Operating current: 1A

Dual Band GSM/GPRS

ModuleSerial port circuit with protectionControl by AT commandSMS or PDU text modeLED signal and RING indicator.

Compatible with ARDUINO, RASPBERRY PI, ARM, AVR, PIC, 8051, etc.

Default baud rate: 9600bpsBuilt-in TCP/IP stackClass 10/8 multi-slot GPRSClass B GPRS mobile stationComply with GSM 2/2+ standardsClass 4 (2 W at 900 MHz)Class 1 (1 W at 1800 MHz)Controlled by AT commands (GSM 07.07, 07.05 and SIMCOM enhanced AT command set)Antenna interface circuit (SMA curve female port)SIM card circuit (Flip SIM slot)

Operating temperature range: -40 ° C to +85 ° C.Pins:VCC5 = 5V supplyGND = Ground3VT = TXD (output, 3.3V)3VR = RXD (input, 3.3V)5VT = TXD (Output, 5V): Connect this pin to the receive pin of the Arduino5VR = RXD (Input, 5V): Connect this pin to the Arduino transmit pinVCC = Do not useGND = GroundDB9-2 = RS232 TX (output)DB9-3 = RS232 RX (input)GND = Ground