GSM/GPRS+GPS/BDS Development Board A9G Development Board SMS Voice Wireless Data Transmission Positioning ModuleItem NO.: A9G

A9G Development Board

Introduction To Development Board:

● The A9G development board is a multifunctional development board based on the Anxinke A9G GPRS/GSM+GPS/BDS module, which can be used to verify the basic communication and peripheral functions of the A9G module.

● The A9G development board has basic telephone/SMS, GPRS network communication, and GPS/BDS dual mode positioning functions.

● The A9G development board is equipped with lithium battery charging management, microphone, speaker interface, USB communication interface, multiple user buttons/led, TF card slot, acceleration sensor, SPI interface, I2C2 interface, and ADC interface.

● A9G development board camera expansion board, capable of connecting 30W/200W cameras externally.

● A9G development board coin machine expansion board, which can be connected to traditional coin machines externally.

Based On The Above Functions, A9G Can Be Used For Various Peripheral Prototype Development Verification:

● Vehicle anti-theft device using GPRS+GPS and acceleration sensor.

● Remote monitoring intercom using GSM and microphone/speaker

● Smart watch using GPRS/GSM+GPS, 1.54 inch capacitive touch screen

● An elderly monitoring watch using GPRS/GSM+GPS, heart rate and blood oxygen sensors, and a 1.54-inch capacitive touch screen

● Remote monitoring camera using GPRS+TF+camera expansion board

● WeChat Pay slot scheme using the slot expansion board

● Use onboard functions and customize devices based on Lua programming

Basic Debugging:

connection

● The development board uses AT firmware, and during debugging, use 4 cables to connect USB TTL and connect it to the computer for debugging: VUSB → 5V; GND → GND; AT_ TX → RX; AT_ RX → TX;

● Alternatively, use USB power supply and connect three additional wires GND → GND; AT_ TX → RX; AT_ RX → TX;

● Or lithium battery powered VBAT → (3.3v-4.2) V; GND → GND; AT_ TX → RX; AT_ RX → TX; (To use VBAT power supply, press and hold the power_key button for about 2 seconds)

Power on

1. The A9G development board can be powered by a lithium battery or USB.

2. After 1-2 seconds of power on, the module will automatically run, and at this time, the serial port will automatically output information. The entire process from power on to normal operation of the development board does not require any operation.

3. To reset, please press Rst_ Key button.

4. The module defaults to AT instruction mode.