Telit Wireless Solutions LE910C series - Page 1802

LE910Cx AT Commands Reference Guide
80502ST10950A Rev. 14 Page 1802 of 1904 2022-03-04
Not Subject to NDA
UNCOLICITED MESSAGE:
#MQRING - Received data on subscribed topic
When a message is received on the subscribed topic, an URC
message is sent to all AT commands interfaces. There are 30
messages slots available for incoming messages, and it is
responsibility of the user to keep them empty by reading them with
#MQREAD.
67. If the message queue is full, and a new message arrives, the
following URC #MQRING: 0 is received.
68. Otherwise, for normal messages, the URC format is:
#MQRING: <instance_number>,<message_id>,<topic>,<len>
In the Unsolicited fields section are described the URC message
parameters not described in the previous sections.
Name
Type
Default
Description
<topic>
string
-
name of the topic from where the
message was received
<len>
integer
-
length in bytes of the received payload
AT#MQREAD?
Read command returns the unread messages count for each instance
number for all active MQTT clients in the format
#MQREAD: <instanceNumber>,<unread>
AT#MQREAD=?
Test command reports the available range of values for parameters
#MQREAD: (1-maxClients),(1-30)