A9G is a complete quad-band GSM/GPRS+GPS module based on the RDA8955 chip. The cost reduction of the core chip provides users with 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.

Only one mobile phone card or Internet of Things card is needed to enable the device to have information transmission functions such as GPRS/GPS/ SMS/voice calls. A9G could also work with other devices by AT command. Besides, the module comes with 29 GPIOs and an integrated SDK that could greatly facilitate private redevelopment.

• 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
• GPS integrated(GK9501), connected with GPRS chip internal through the serial port(UART2), real-time positioning

• 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
• Supports 3 serial Ports, one download serial port, one GPS port
• AT command supports standard AT & TCP/IP command Port
• Supports GPS+AGPS

• Product wiki

• A9G Module ×1
• GPS Antenna ×1
• GSM Antenna ×1