Description
Overview: 1. The A9 development board is a multi-function development board based on the Axin A9G GPRS/GSM module, which can be used to verify the basic communication functions and peripheral functions of the A9 module.2. A9 development board has basic telephone/sms, GPRS network communication.3. A9 development board contains lithium battery charge management, microphone, speaker interface, USB communication interface, multiple user buttons / led, TF card slot, acceleration sensor, SPI interface, I2C2 interface, ADC interface.4. Pudding series development board camera expansion board, can be connected to 30W/200W camera.5. A9 development board slot machine expansion board, can be connected to a traditional coin machine. Specifications: Chip size: 19.2 x 18.8 x 2.7mm (±0.2mm)Working temperature: -30 °C +80 °CWorking voltage: 3.5V-4.2V, 4V power supply is recommendedBoot voltage: >3.5VLow power average current: below 2maSupport GSM/GPRS four frequency bands, including 850, 900, 1800, 1900MHZGPRS Class: 10Sensitivity: <-105Support voice callsSupport SMS SMSGPIO level: 2.8VSupport GPRS data service, maximum data rate, download 85.6Kbps, upload 42.8KbpsSupport standard GSM07.07, 07.05 AT commands and Ai-Thinker extension commandsA9 supports 3 serial ports, one download serial port and one AT command portAT command supports standard AT and TCP/IP command portsSupport digital audio and analog audio, support HR, FR, EFR, AMR voice codingPackage Included:
1 x GPRS GSM Module A9 Module
Document:
Product_specification: Click to openat_instruction_set: Click to openhardware_info: Click to openserial_tool: Click to openA9 development board schematic: Click to open
A9 development board principle library: Click to open
CSDK_Github open source information: https://github.com/Ai-Thinker-Open/GPRS_C_SDK
