Today, I decided to show a project that I actually made for use in my own home. I have an air humidifier, which often leaves the room too dry. And sometimes, it leaves water on the floor around it. So I thought to myself: I use both DHTs, so why not make an automatic moisture control?
Well, that’s exactly what I did, and I’ll discuss this further in the video, How to make an ESP32 read the humidity and show it on an OLED display. Also, based on humidity, the ESP32 will (via the ESP-NOW protocol) send the signal to an ESP8266 thats on or off the relay.
One important tip is that in this same project, as I have shown in other videos, you can also read the temperature of the environment.”