# A9 GSM/GPRS Module

**Type:** Product page · **SKU:** TEL0135 · **Brand:** [DFRobot](https://core-electronics.com.au/brands/dfrobot-australia)
**Page:** https://core-electronics.com.au/a9-gsm-gprs-module.html ([markdown](https://core-electronics.com.au/a9-gsm-gprs-module.html.md))

## Retired product

This product is retired and no longer available for purchase. Search the catalogue for an alternative.

## Description

#### **This is a 2G device. As the 2G networks in Australia have been dismantled, this device will no longer work in Australia.**

#### Introduction

A9 is a complete quad-band GSM/GPRS module based on RDA8955. The cost reduction of the core chip provides users a cost-effective IoT solution. Integrating protocol stacks such as GSM/GPRS inside, this module supports the basic phone voice call/SMS, serial to GPRS and GPS data transmission functions, which can be used in a wide range of applications, such as [IoT](https://www.dfrobot.com/topic-276.html), vehicle-mounted equipment, remote localization, electric power environment monitoring.

The module allows users to make voice call, use SMS services and access the internet and base position with only a SIM or IoT card. A9 could also work with other devices by AT command. Besides, the module comes with 29 GPIOs and integrated SDK that could greatly facilitate private redevelopment.

 ![A9-GSM-GPRS-Module-desc-img](https://core-electronics.com.au/media/wysiwyg/product_images/A9-GSM-GPRS-Module-desc-img.jpg)#### Features

- 32 bit RISC core, frequency up to 312MHz, with 4k instruction cache, 4k data cache
- Up to 29 GPIOs (with two download pins)
- PMU(Power Management Unit): Lithium battery charge management, integrated DC-DC and LDOs
- Quad-band GSM/GPRS (850/900/1800/1900MHz)
- Voice call
- SMS
 
#### Specification

- Working Temperature: -20℃+70℃
- Low Power Mode Current: 2mA below (average)
- GPRS Class 10
- Sensitivity<-105dB
- GPIO Level: 2.8V
- Supports GPRS data service, the maximum download data rate is 85.6 Kbps, upload data is 42.8 Kbps.
- Supports standard GSM07.07,07.05 AT command and Ai-Thinker expandable command set
- AT command supports standard AT & TCP/IP command Port
 
#### Documents

- [Product wiki](https://wiki.dfrobot.com/A9G_Module_SKU_TEL0134)
 
#### Shipping List

- A9 Module ×1
- GSM Antenna ×1

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/t/e/tel0135-1.jpg)