Simple Automatic Arduino hand Sanitizer

Hello Guys, hope you are doing fine. This is a very useful project in day-to-day life. In this article, we are going to make a Simple Automatic Arduino hand Sanitizer using Arduino UNO at home. We are using an ultrasonic sensor in this model so whenever you take your hands near the sensor it will spray the sanitizer on your hands. This is a fully automatic project but you have to refill the liquid bottle timely. Please read the full article and follow all the given steps carefully. Read the full working of this model on our website. you are free to use this mechanism in any size of sanitizer machine.

How does Arduino hand sanitizer work?

There is an ultrasonic sensor that can identify the presence of anything in front of it. You just need to bring your hands under the sensor and it will automatically drop some drops of the sanitizer liquid on your hands with the help of a DC water pump controlled by Arduino. There are two terminals in the ultrasonic sensor one is TRIG and another ECHO which are responsible for the communication. Please put your hands at a distance of 10 cm or less from the ultrasonic sensor so that it can work properly.

The component used in Hand sanitizer:-

• Arduino nano
• RGB led
• ultrasonic sensor
• breadboard
• Jumper wires
• 220ohm resistor
• 12v Water pump
• 12v Adapter
• Pipe or tube for pump

simple automatic Arduino hand sanitizer circuit diagram:-

Simple automatic Arduino hand sanitizer dispenser code

NOTE: Please upload the given code into the Arduino using Arduino IDE.

We hope that you like this simple and cheap automatic hand sanitizer machine made by us. For more such cool and interesting projects please visit our website at once.

HAPPY LEARNING!