D.I.Y. Automatic Alcohol Dispenser

International College of Technology (ICT) Hakusanroku campus

In this situation of Covid-19, The general public turn to wear a face mask, wash their hands, and leave more spacing especially. In school many countries have closed classes, some schools can still open classes including ICT Hakusanroku campus because all of the students are here. But, we still do all classes online. Even so, we still let students wear a face mask and always wash their hands to reduce infection and spread the infection.

Anyway, one thing that is a problem is we have to press a Alcohol bottle. That means we touch things and the virus can spread to the bottle. Then, I tried to design a 3D model to press the alcohol bottle with servo motor instead of our hand and print all parts by 3D printer, detect our hand with ultrasonic sensor and all of these are controlled with Arduino board.

Supplies

1. Computer or Laptop
   - Arduino IDE
   - Autodesk Fusion360 (optional)
   - Autodesk Tinkercad (optional)
2. 3D printer
3. Arduino UNO board
4. Servo motors MG996R High Torque or any Servo motor
5. Ultrasonic Sensor SR04 or any Distance sensor
6. Wire and AC Adapter

Step 1

Design your 3D model and make a file for your 3D printer or download here

Step 2

Print the model and assemble it together

Step 3

Wiring and connecting

Step 4

Write your code to read a distant when the hand is close to dispenser , Then pressed a alcohol bottle by servo motor

bavensky/arduino-alcohol-dispenser

Step 5

let’s see how it works

Step 6

Finally, Powering and setup.