No Touch Hand Washing Countdown Timer

Back to overview

A simple 20 second no touch countdown timer using and Arduino UNO, an HC-SR04 Ultrasonic sensor and a 7 segment display.

Paul McCabe

Back to overview
Files 1
Components 5
logs 0
Instructions0
Discussion0

handWashingTimer.ino

Arduino Sketch

ino - 6.40 kB - 03/22/2020 at 00:49