A9 is the latest GSM/GPRS module launched by Essence. 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 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);

• A9/A9G AT command operation examples (online documentation, will continue to update and debug DEMO)

( Among A9Tracker related functions, the A9 module uses the base station positioning function, and the A9G module can choose to set the base station positioning function or the GPS positioning function, and upload the current position information to WeChat or app regularly. When positioning indoors, due to GPS signals Too weak, it is recommended to set the base station positioning function. For details, refer to the following documents)

• WeChat: Anxinke Official Account Usage Guide

• app: A9Tracker app user guide

• A9/A9G 10-minute docking with Gizwits to create your own product tutorial: http://www.jianshu.com/p/e3d86a263be5

• CSDK_Github open source information: Open Source Information
• C_SDK development kit: development kit
• Tool chain CSDTK4.2 download: CSDTK4.2 Extraction code: yc11

• Firmware release: GPRS 固件发布

• GPRS series module upgrade guide: GPRS 系列模组升级指南

• Firmware release: GPS 固件发布

• GPS series module upgrade guide: GPS 系列模组升级指南

• Product_specification: A9_EN A9_CN A9G_EN A9G_CN

• User Manual (user_manual): A9/A9G User Manual (A9/A9G hardware design can refer to the A9G development board schematic diagram)

• AT instruction set (at_instruction_set): A9/A9G AT instruction set A9/A9G AT_Command_series

• STM32 driver for A9/A9G (for reference only): program

• Hardware information (hardware_info): A9/A9G_hardware_infoCA-01 hardware package

• Debugging tool (serial_tool): Serial debugging tool

• FAQ document: 安信可gps_gprs_a9g常见问题faq.pdf

• Precautions for mass production: GPRS mass production precautions

• Module certificate: GPRS系列模组证书

• GK9501 related information: gk9501_doc_tool.7z

• A9G development board: Pudding 系列开发板-A9G开发板资料

• A9 development board: Pudding 系列开发板-A9开发板资料

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