This build is about using the temperature sensor in your clock. The ATMega328p, the chip at the heart of all your Arduino Uno clones, has within it a watchdog timer that clicks over at a rate of ...

[Mike’s] solution uses two Wemos D1 boards: one with a DS18B20 temperature sensor for outdoors, ... is using an Arduino Nano and a DHT22 sensor that can detect temperature and humidity.

Krejci’s design, while affordable, offers an 8×8 resolution, which is the maximum output of the AMG8833 infrared sensor array. DIY Arduino thermal camera Watch this video on YouTube .

A two-wire temperature transmitter using an RTD sensor that can be used in industrial settings to connect to the control room.