DIY Automatic Alcohol Dispenser ($3 No Arduino Needed)

Parts & Materials: - Proximity Sensor ($0.6 - https://bit.ly/3ape7I2 ) - DC Water Pump ($1.8 - https://bit.ly/3ayT5qJ or $3 - https://bit.ly/3aouip4) - Realy Module ($1.0 - ) - Aquarium Tubing - Old Glass Jar - Old Ballpen - Sanitizer/ Rubbing Alcohol __________________

Circuit Diagram :