Instructables: Humidity Light

Let’s see how Humidity is doing today…

This arduino controlled LED light changes color when the humidity is not optimal.

Whenever the humidity is below 40%, the color will change to Red

Between 40 and 60% the color will be green

Above 60%, the color will change to Yellow

The humidity is measured with a DHT11 sensor

The lights consists of 4 ( or whatever you like) neopixel lights.

A Arduino Nano is in charge of this battery powered device and the Arduino software is simple and straight forward. It is easy to adjust it to your needs.


Botany
High School, College

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