Elecrow
GPRS/GSM + GPS A9G Pudding/SMS/Voice/Wireless Data Transmission + Positioning IOT Development Board
The A9G development board is a compact IoT module combining GPRS/GSM cellular connectivity with GPS/BDS dual-mode positioning. Based on the A9G module, it su...
The A9G development board is a compact IoT module combining GPRS/GSM cellular connectivity with GPS/BDS dual-mode positioning. Based on the A9G module, it supports voice calls, SMS, GPRS data networking, and real-time location tracking — all on a single board.
Packed with peripherals including a lithium battery charger, microphone and speaker interfaces, accelerometer, TF card slot, USB communication, and multiple I/O interfaces (SPI, I2C, ADC), this board is a versatile platform for IoT prototyping. It also supports a camera expansion board for 0.3MP or 2MP cameras, and can be programmed using AT commands or custom Lua scripts.
Key Features
- Cellular – GSM/GPRS quad-band (850/900/1800/1900 MHz)
- Positioning – GPS + BDS dual-mode
- Voice & SMS – Supports voice calls and text messages
- GPRS Data – Download up to 85.6 Kbps, upload up to 42.8 Kbps
- AT Commands – GSM 07.07/07.05 and Ai-Thinker command set
- Serial Ports – 3 (1 download, 1 AT command, 1 general)
- On-Board Peripherals – Accelerometer, TF card slot, LEDs, user buttons, mic/speaker interfaces
- Expansion – Camera board support (0.3MP/2MP), SPI, I2C, ADC interfaces
- Working Voltage – 3.5–4.2V (optimal at 4V)
- GPIO Level – 2.8V
- Temperature Range – −30°C to +80°C
- Module Size – 19.2 × 18.8 × 3mm
- Power – USB, lithium battery, or external supply
Ideal For
- IoT and remote monitoring projects
- GPS/cellular asset tracking
- Vehicle anti-theft with accelerometer + GPS
- Remote camera and data logging systems
Package Contents
- 1× A9G GPRS/GSM + GPS Development Board
Jargon buster
Plain-language definitions for the technical terms used above.
- ADC
- An analogue-to-digital converter reads a changing voltage and turns it into a number the microcontroller can use. It matters when connecting analogue sensors such as light, sound, or variable-resistor sensors.
- BDS
- BeiDou, China’s satellite navigation system. Support for BDS gives the receiver access to more satellites, which can help maintain a better position fix in challenging locations.
- GPIO
- General-purpose input/output pins are microcontroller pins you can set in software to read signals, switch devices on and off, or connect to peripherals. The number of GPIO pins matters because it limits how many buttons, LEDs, sensors, and other parts you can wire directly to the board.
- GPS
- The US satellite navigation system used by GNSS receivers to calculate position and time. Support for GPS is important because it is widely available and often used together with other constellations for more reliable positioning.
- I2C
- I2C is a two-wire communication bus used by many sensors and small modules. It matters because several I2C devices can share the same two wires, but each device needs a compatible address and your controller must support I2C.
- IoT
- Short for Internet of Things, meaning physical devices that connect to networks or the internet to send data or be controlled remotely. It matters if you want projects such as connected sensors, remote controls or classroom data-logging activities.
- SPI
- A fast serial communication bus often used for displays, memory cards, and sensors. It matters because SPI devices need specific pins for clock and data, plus a separate chip-select line for each device.
Find this product in
Related Tutorials
Free guides on learn.littlebird.com.au
