This isn’t about connecting a temperature sensor in your Arduino. This build is about using the temperature sensor in your clock. The ATMega328p, the chip at the heart of all your Arduino Uno ...

Arduino is a great way for today’s novices to start to ... and the analog pin A0 takes care of the 10K trimpot. Analog pin A4 is for the temperature sensor, digital pin D2 is for the infrared receiver ...