AT Command List

For modules that have passed the compatibility certification, its AT commands and format specifications are basically the same as Huawei general requirements. Some module vendors have their own AT channels and their implementation is slightly different. For details, see the special description of the module vendors.

AT Command	Description
AT+HMVER	Obtains the Huawei SDK version information.
AT+HMCON	Sets MQTT connection parameters.
AT+HMDIS	Disables the connection to the Huawei IoT platform.
AT+HMPUB	Sends MQTT data to a specific topic.
+HMREC	Transmits the data received by the module to external MCUs.
+HMSTS	Proactively transfers the module connection or disconnection status to external MCUs.
AT+HMSUB	Subscribes to a custom topic.
AT+HMUNS	Unsubscribes to a custom topic.
AT+HMPKS	Sets the server or client certificate.