Ai Thinker A9G GSM/GPRS+GPS/BDS Development Board


A9G GSM/GPRS+GPS Modules is a quad-band GSM/GPRS module based on RDA8955 SoC and comes with 29 GPIOs and an integrated SDK. These modules support the basic phone voice call/SMS, serial to GPRS, and GPS data transmission functions which can be used in a wide range of applications. The A9G modules allow users to make a voice call, use SMS services, and access the internet and base position with only a 2G SIM card. These modules operate at -20°C to 70°C temperature range. Applications include IoT, vehicle-mounted equipment, remote localization, and electric power environment monitoring.

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  • -20°C to 70°C operating temperature range
  • 2mA below (average) low power mode current
  • Supports quad-band GSM/GPRS (850/900/1800/1900MHz)
  • GPRS class 10
  • <-105dB sensitivity
  • Supports voice call and SMS
  • 2.8V GPIO level
  • One SIM card slot (Micro Card)
  • 1 TF card slot
  • 1 power key, and a reset button
  • 2 LED
  • 1 microphone
  • Supports GPRS data service, the maximum download data rate is 85.5kbps and upload rate is 42.8Kbps
  • Supports standard GSM07.07, 07.05 AT command, and Ai-Thinker expandable command set
  • AT command supports standard AT and TCP/IP command port

Pin Diagram





A9G AT Commands list (Chinese)

A6 AT Commands List (English) Commands also supported for A9G

Getting Started Video