The A9G development board is a multi-function development board based on the Anxin A9G GPRS/GSM+GPS/BDS module, which can be used to verify the basic communication functions and peripheral functions of the A9G module. The A9G development board has basic phone/sms, GPRS network communication, and GPS/BDS dual- positioning. A9G development board contains lithium battery charge management, microphone, speaker interface, USB communication interface, multiple user buttons / led, TF card slot, SPI interface, I2C2 interface, ADC interface. A9G development board camera expansion board, can be connected to 30W/200W camera. A9G development board slot machine expansion board, can be connected to a traditional coin machine. Remote monitoring intercom with GSM and microphone/speaker. Smart watch with GPRS/GSM+GPS, 1.54 inch capacitive touch screen. Seniors using GPRS/GSM+GPS, oximetry sensor, 1.54 inch capacitive touch screen Watch watch. Remote surveillance camera using GPRS+TF+ camera expansion board. payment slot machine solution using slot machine extension board. Customized device based on lua programming using onboard function. Specification: Power Supply: DC6-24v Material: Electronic components Board size: Approx. 4x2.5cm / 1.57x0.98inch GPRS Cable length: Approx. 3.5x0.7cm / 1.38x0.28inch GPS Cable length: Approx. 2.8x2.8cm / 1.1x1.1inch Package Includes: 1 Piece A9G Development Board 1 Piece GPRS Cable 1 Piece GPS Cable