MQTT Setup, Subscribe & Publish on A7670 GPS + 4G LTE

In Part 2 of our A7670 series, we dive into MQTT communication using the A7670 GPS + 4G LTE module. You'll learn how to:

Set up an MQTT connection on A7670
Subscribe to a topic and receive messages
Publish data to an MQTT broker
Check connection status and list subscribed topics

ATE0 //Test ATAT+SIMCOMATI //Device infoAT+CEREG? //Check Network RegistrationAT+CGATT? //Start InternetAT+CGDCONT=1,"IP","vodafone" //Set APNAT+CGPADDR=1 // Check IP assigned by Network OperatorAT+CMQTTSTART // Start MQTTAT+CMQTTACCQ=0,"A76XX_Client",0 // Prepare Mqtt TopicAT+CMQTTCONNECT=0,"tcp://ServerIP:1883",60,1 //Connect to MQTT BrokerAT+CMQTTTOPIC=0,10 // Create TopicAT+CMQTTPAYLOAD=0,20 // Payload CommandAT+CMQTTPUB=0,0,60 // Publish TopicAT+CMQTTSUB=0,12,1 //Subscribe to TopicAT+CMQTTCONNECT? // Check Broker ConnectionAT+CMQTTSUB? // Check Subscription topic
This module is perfect for IoT applications, remote monitoring, and real-time data exchange. In Part 3, we’ll integrate it with an ESP32 to send GPS data to a server via MQTT—stay tuned!

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Видео MQTT Setup, Subscribe & Publish on A7670 GPS + 4G LTE канала IOT LABS