Automatic hand sanitizer using a 9 gram servo, ultrasonic proximity sensor and arduino nano. The mechanism is very simple using only a string to push down on the cap of the hand sanitizer.
In depth tutorial: https://www.instructables.com/id/Simple-Automatic-Hand-Sanitizer-Soap-Dispenser/
3D print files: https://www.thingiverse.com/thing:4235115
Arduino code: https://drive.google.com/file/d/1OtrWPEkT9Di8dzfqBdbh0d4LK9d1ofnP/view?usp=sharing
For further questions feel free to contact me via e-mail.
Hi how much is this sensors..everything complete..
-Ultrasonic sensor ~ 1,25€
-Arduino nano ~ 3,4€
-9 gram servo ~ 1,4€
Total ~ 6€
An excellent post, congratulations !!
Thank you for sharing.
Why did you use 9 gram servo, ultrasonic proximity sensor and arduino nano?
Hi. Marko here (see link on the right, “Site sponsor”, a.k.a. the Dad). Maj opened the drawer: what do I have in here? Oh, look, arduino and a box of old servos… The ultrasound sensors were from some old projects. The components were just on hand.