For years we’ve seen a trickle of really interesting home automation ... ve been using Node-RED for a month or so and have built up a couple of useful apps, one interacts with my MQTT broker ...

“With HomeSpan you can use ... the ESP32’s I/O functionality to create custom control home automation software and/or hardware to automatically operate external devices from the Home App ...

The “w” in the name is for WiFi as the built-in ESP-32 module then takes the moisture reading and sends an update wirelessly via MQTT. Depending on the IQ of your smart-home setup, you could ...