Arduino Nano thermometer takes room temperature How cool is this? Well, given it’s an Arduino-driven thermometer we should be able to take the reading… We seem to be having a lot of weather recently – I don’t know if you’ve noticed – so this feels quite timely. Created by Mirko Pavleski, the “room comfort thermometer” uses LEDs to indicate its reading. To build it, the list of components include an Arduino Nano R3, an Adafruit Waterproof DS18B20 Digital temperature sensor, a push button switch (for changing operational modes) and, for the lights, a Digilent WS2812 Addressable LED Strip.