The contactless hand sanitizer dispenser is an innovative solution designed to enhance hygiene by reducing physical contact. The system utilizes ultrasonic sensing technology and a servo motor to detect a user's hand within a 10 cm range. The Arduino microcontroller processes the signal and activates the servo motor to dispense the sanitizer. This automation ensures efficiency, minimizes contamination risks, and provides a user-friendly experience. The dispenser operates on a 9V battery, making it portable and reliable for public use. This project contributes to public health by offering an effective and contactless sanitization method, making it suitable for hospitals, schools, offices, and public spaces.
Blog link: https://handsanitizerautomati.blogspot.com