DA16200
Wi-Fi MQTT Client Simple Demo
Rev.1.00
Page 11 of 13
Mar, 2022
J-Link RTT Viewer serves as a tool to monitor the state of the system, especially the current stage of Wi-Fi and MQTT
operation.
After MQTT connection finished, Green Led on EK-RA6M4 lights.
Press S1 on EK-RA6M4 publishes a message of “button is pressed” with topic of button to MQTT Server, any
subscribers subscribing this topic will receive this information, smartphones are no exception.
Mosquitto software updates the current Wi-Fi and MQTT connection state and message received from MQTT client.
