MQTT I Raspberry Pi I Control Deivces by Node-red Dashboard and Export RSSI Data of Esp32 from MySQL

In this video, the MQTT network architecture was built with raspberry pi and esp32. Besides control data transmission of devices with the start or stop buttons of Node-red dashboard on the browser. Moreover, data could be exported from MySQL by Node-red dashboard.
#mqtt #nodered #樹莓派 #树莓派 #mysql #raspberrypi #esp32 #sql #sqlserver #mcu #wifi #dashboard #iot #iiot