A9G GSM/GPRS+GPS Module

The A9G is an outstanding quad - band GSM/GPRS + GPS module built on the RDA8955 chip. The cost - effective core chip offers users an economical IoT solution. With integrated protocol stacks like GSM/GPRS, this module supports basic phone voice calls, SMS, serial to GPRS, and GPS data transmission. It has a wide range of applications, including IoT, vehicle - mounted equipment, remote localization, and electric power environment monitoring. Users can easily upload the module's position information to WeChat Mini - Programs or other APPs using just a SIM or IoT card and check the position on their phones. The A9G can communicate with other devices via AT commands. It comes with 29 GPIOs and an integrated SDK, which greatly simplifies private redevelopment. Features include a 32 - bit RISC core with a frequency up to 312MHz, 4k instruction and data caches, up to 29 GPIOs, PMU for lithium battery charge management, quad - band GSM/GPRS, voice call, SMS, and integrated GPS for real - time positioning. Specifications cover a working temperature of - 20℃ to + 70℃, low power mode current below 2mA on average, GPRS Class 10, sensitivity less than - 105dB, GPIO Level of 2.8V, support for GPRS data service, standard GSM07.07, 07.05 AT commands and Ai - Thinker expandable command set, 3 serial ports, and support for GPS + AGPS.

Using the A9G module is quite simple. First, insert a SIM or IoT card into the module. Then, connect it to your device. You can upload the module's position information to WeChat Mini - Programs or other APPs and check the position on your phone. To communicate with other devices, use AT commands. When it comes to maintenance, keep the module in a dry environment within the working temperature range of - 20℃ to + 70℃. Also, avoid exposing it to strong magnetic fields. Make sure the power supply meets the module's requirements to prevent damage. If you plan to do private redevelopment, the 29 GPIOs and the integrated SDK will make your job easier. Just follow the relevant programming instructions and you'll be good to go.