A9 is the latest GSM/GPRS module launched by Ai-Thinker. The cost reduction of the core chip makes the whole solution more cost-effective. It provides information transmission functions such as serial port to GPRS/short message/voice call, which is widely used in the fields of Internet of things/vehicle/electric environment detection.

A9G is a complete quad-band GSM/GPRS+GPRS/GPS module. The cost reduction of the core chip makes the whole solution more cost-effective. It is convenient to apply to various IoT hardware terminal occasions.

　　A9/A9G module parameters

• A9/A9G size: 19.2*18.8*2.7mm (±0.2mm)
• Working temperature -20℃+70℃;
• Working voltage 3.8V-4.2V, 4V power supply is recommended;
• Boot voltage>3.8V;
• Low power consumption average current is below 2mA;
• Support GSM/GPRS four frequency bands, including 850, 900, 1800, 1900MHZ;
• GPRS Class 10;
• Sensitivity < -105dB;
• Support voice calls;
• Support SMS;
• GPIO level is at 2.8V;
• Support GPRS data service, maximum data rate, download 85.6Kbps, upload 42.8Kbps;
• Support standard GSM07.07,07.05 AT commands and Ai-Thinker extended commands;
• A9 supports 3 serial ports, one download serial port and one AT command port;
• A9G supports 3 serial ports, one download serial port and one GPS serial port;
• AT commands support standard AT and TCP/IP command ports;
• Support digital audio and analog audio, support HR, FR, EFR, AMR voice coding;
• Support GPS+AGPS (only applicable to A9G);

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Shenzhen Ai-Thinker Technology Co., Ltd.
Support: support@aithinker.com
Business: overseas@aithinker.com
Tel: +86-15989589908 (same number on WeChat)
Address: Room 410, Building C, Huafeng Smart Innovation Port, Gushu, Xixiang, Baoan District, Shenzhen