Alat Pencuci Tangan Otomatis 3 in 1 Menggunakan Sensor Infrared Proximity Berbasi Tenaga Surya

Abstract

Washing hands is a simple thing, but has a very important role in everyday life. Hand washing systems are designed to meet these needs. The sink system consists of a water faucet and soap. Sink systems are starting to be widely used in homes, schools, campuses, offices, industry and other places. The purpose of making this tool is to know the design, working principle and accuracy of the calibration results. The working principle of this tool is that when the proximity sensor detects an object, the proximity sensor sends a signal to the ATmega328 microcontroller to turn on the relay and solenoid valve, then the servo motor rotates to open the faucet. Then the flow meter sensor sends a signal to the ATmega328 microcontroller to display the discharge and volume of water coming out on the LCD.