Geeetech Iduino DUE Board+Quad-band GSM GPRS SIMCOM SIM900 Shield Development Board for Arduino/Iduino

SIM900 GPRS Shield The GPRS Shield is based on SIM900 module from SIMCOM and compatible with Arduino and its clones. The GPRS Shield provides you a way to communicate using the GSM cell phone network. The shield allows you to achieve SMS, MMS, GPRS and Audio via UART by sending AT commands (GSM 07.07 ,07.05 and SIMCOM enhanced AT Commands). The shield also has the 12 GPIOs, 2 PWMs and an ADC of the SIM900 module(They are all 2V8 logic) present onboard. Features: Control via AT commands - Standard Commands: GSM 07.07 & 07.05 | Enhanced Commands: SIMCOM AT Commands. Short Message Service - so that you can send small amounts of data over the network (ASCII or raw hexadecimal). Embedded TCP/UDP stack - allows you to upload data to a web server. Industrial Temperature Range - -40°C to +85 °C Please note: If you meet a SIM card error "+CPIN: SIM not inserted". This may be due to the fact that not all network providers are GSM supported. The best carriers to be with are O2, Vodafone, T-Mobile and even Meteor within the UK and Ireland. Iduino DUE Board The Iduino Due is Arduino's first ARM-based Arduino development board.The Iduino Due Board has 54 digital input/output pins (of which 12 can be used as PWM outputs), 12 analog inputs, 4 UARTs (hardware serial ports), an 84 MHz clock, a USB-OTG capable connection, 2 DAC (digital to analog), 2 TWI, a power jack, an SPI header, a JTAG header, a reset button and an erase button. Microcontroller: AT91SAM3X8E Operating Voltage: 3.3V Recommended Input Voltage: 7-12V Min-Max Input Voltage: 6-15V Analog Input Pins: 12 Analog Outputs Pins: 2