In this video I have made a portable touch free hand sanitizer dispenser
using Stepper motor, Arduino and Ultrasonic sensor.

Circuit drawing :
https://ibb.co/4dSdBTV

Code :
https://drive.google.com/file/d/1N75AuwcaBLBEhMOi4eBbfKgHtmvB7Rkc/view?usp=sharing

Item used :
Arduino nano
A4988 stepper driver
NEMA 17 stepper motor
Ultrasonic sensor

#arduino #programming