A9 GSM/GPRS Module

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, 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.

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