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Get it between 2025-02-06 to 2025-02-13. Additional 3 business days for provincial shipping.
Complete four-frequency GSM/GPRS module, 800/900/1800/1900MHz
SMD package is adopted, which is convenient for mass production and testing. The average current in low power consumption mode is less than 2mA.
Support digital audio and analog audio, support HR, FR, EFR,AMR audio coding, support audio communication and SMS message
Embedded network service protocol branch, supporting standard GSM07.07,07.05AT command and security letter extensible instruction set
Support PBCCH, support firmware upgrade through serial port
A9 is a complete quad-band GSM / GPRS module with SMD package of compact design. Its stable performance, small appearance, high cost performance, can meet the needs of customers. A9 can be widely used in various Internet of Things occasions, suitable for home automation, industrial wireless control, wearable electronic products, wireless location sensing devices, wireless positioning system signals and other Internet of Things applications. It is an ideal solution for Internet of Things applications. A9 adopts SMD package, which can realize rapid production of products through standard SMT equipment. It is especially suitable for modern production methods of automation, large-scale and low-cost, and is convenient to be applied to various Internet of Things hardware terminal occasions.