Touchless Dog Hand Wash Timer

cults3d

This project is so simple to make and use. When we wave our hand in front of the ultrasonic sensor, it will turn on the light, start from green, and end with red. Moreover, to make this hand wash timer more interesting and fascinating is that I add a jingle that will sing to you for about 20 seconds in accordance with the CDC guideline. Actually, CDC recommends using Happy Birthday jingle for scrubbing our hands. We can change the jingles with any music as we desired and program it, so it will have a 20-second duration of jingles. Since my favorite animal is sheep, I used "Baa Baa Black Sheep" jingles for my hand wash timer. Tutorial: https://3dprintingcenter.diy4pro.com/2020/08/touchless-dog-hand-wash-timer.html or https://www.instructables.com/id/Touchless-Dog-Hand-Wash-Timer-Made-in-Fusion-360/