Help Center> IoT Device Access> API Reference> Module AT Command Reference> AT+HMSUB

Updated on 2023-02-16 GMT+08:00

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AT+HMSUB

This command is used to subscribe to a custom topic.

Command	Parameter	Default Parameter Processing	AT Response	Example
AT+HMSUB=qos, topic	qos: topic QoS.	Default value: 0	+HMSUB OK when success	AT+HMSUB=0,"$oc/devices/my_deviceid/user/my_subtopic"
AT+HMSUB=qos, topic	topic: custom topic.	Custom	+HMSUB ERR:code code:reference to en_oc_mqtt_err_code_t defines	AT+HMSUB=0,"$oc/devices/my_deviceid/user/my_subtopic"

Parent topic: Module AT Command Reference

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