The Ai-Thinker A9G is a compact GSM/GPRS module with built-in GPS/BDS (BeiDou) positioning. A single module can send SMS, make calls, send data over GPRS and give your location, which makes it a popular choice for GPS trackers and remote IoT devices. It is controlled with standard AT commands over UART from Arduino, ESP32 or any microcontroller.
| Network | GSM / GPRS, quad-band 850/900/1800/1900 MHz |
|---|---|
| Positioning | GPS + BDS (BeiDou) |
| Interface | UART, AT commands |
| Supply voltage | 3.5V – 4.2V (Li-ion level) |
| Functions | SMS, voice call, GPRS data (TCP/UDP, HTTP, MQTT) |
| SIM | Standard 2G SIM required |
Which SIM card works with A9G?
A 2G (GSM) SIM card. Check that 2G service is available in your area.
Can I power it from 5V?
No, the bare module needs 3.5–4.2V. Use a Li-ion cell or a regulator that can give at least 2A peaks.
Can I buy the Ai Thinker A9G GSM/GPRS + GPS Module in Kanpur?
Yes – buy online with delivery across India, or pick it up from the iTechBuilders store, Damodar Nagar, Kanpur.
