Bring two analog meters out of retirement to display temperature and humidity
Tom of Build Comics created a unique analog weather station that shows temperature and humidity on a pair of recycled gauges. An Arduino Nano reads the levels using a DHT22 sensor and outputs them in the proper format for each display.
Both units have a new printed paper backing to indicate conditions, along with a trimmer pot for calibration. To set the build off nicely, the Nano and other electronics are housed inside a beautiful custom wooden box, to which the antique meters are also affixed.
Code and additional information for the project is available on GitHub , while a short demo of the gauges can be seen below.