DIY Arduino based Touch Free Hand sanitizer dispenser

In this video I have made a portable touch free hand sanitizer dispenser using Stepper motor, Arduino and Ultrasonic sensor. Circuit drawing : Code : Item used : Arduino nano A4988 stepper driver NEMA 17 stepper motor Ultrasonic sensor 💻visit for more projects :- 👉 👉FB page :- My Gears :- Camera :-