We say that in jest, but it’s far too easy to use an Arduino to ... an IR proximity sensor module to detect dirty digits, and a small submersible pump to push isopropyl alcohol, sanitizer ...

The researchers used an Arduino Uno board ... bursts of alcoholic mist across a table, where a sensor at the other end measured the alcohol content of the air. From there, the vapor was ...

This articles describes how you can use I2C (TWI) communication, Arduino and temperature sensors to measure 3 different temperatures. It can be very helpful when you want to measure the outside, ...