Description: To provide you a way to communicate using the GSM cell phone network. It allows you to achieve SMS, MMS, GPRS and Audio via UART by sending AT commands It has the 12 GPIOs, 2 PWMs and an ADC of the SIM900 module(They are all 2V8 logic) present onboard. Quad-Band 850 / 900/ 1800 / 1900 MHz, it would work on GSM networks in all countries across the world. For M2M(Machine 2 Machine), remote control of appliances, remote weather station/Wireless sensor network, vehicle tracking system with a GPS module, etc. Specification: Size: Approx. 8.5 ×5.7 ×2.0 cm/ 3.35 ×2.24 ×0.79 inch GPRS multi-slot class 10/8 GPRS mobile station class B Compliant to GSM phase 2/2+ Class 4 (2 W @ 850 / 900 MHz) Class 1 (1 W @ 1800 / 1900MHz) Control via AT commands, Standard Commands: GSM 07.07 & 07.05 Short Message Service, you can send small amounts of data over the network (ASCII or raw hexadecimal) Embedded TCP/UDP stack, allows to upload data to a web server RTC supported Selectable serial port Speaker and Headphone jacks Low power consumption -1.5mA(sleep mode) Industrial Temperature Range: -40? to +85? Package Includes: 1 Piece of SIM900 850/900/1800/1900 MHz GPRS/GSM Development Board 1 Piece of Antenna
