Since the start of COVID pandemic it is been suggested to wash your hands multiple number of times per day. But can we afford to waste such huge amount of water. The problems that would be created by wastage of water would create a greater problem than the pandemic itself. To help solve this system we here design a system that provides hand washing while consuming over 95% less water. Disinfecting our hands from time to time is a very important factor in fighting the pandemic. But does it actually require so much water to disinfect your hands. Additionally many people actually end up over washing their hands (over 15- 20 seconds with full tap released). Disinfection actually just requires that water reaches every millimeter of your hand along with a disinfectant or soap and it should be just enough to kill any infection or help it slide out of your hand. When we turn on tap only 10 – 30% water actually touches our skin and rest just flows over this first layer of water. The main controlling device of the project is Arduino microcontroller.SR04 ultrasonic sensor, timer buttons, LCD display, Mist maker, Buzzer and UV lamp is interfaced to the microcontroller. User need to set the time through buttons. After select the time user inserts the hands into the machine. Automatically detects the hands using ultrasonic sensor and based on the selective time the machine switches on the mist makers (fog sanitizer) and UV lamp. If the person remove the hands from working machine then system gives the alerts in the form of buzzer. The status of the project will display on LCD. To performance this intelligent task microcontroller loaded embedded C language.

Components:

• Regulated power supply.
• Arduino Controller.
• Fog Maker.
• UV lamp.
• LCD Display.
• Buttons & Switches.
• Relays.
• Ultrasonic sensor.
• Buzzer.

Software’s used:

1. Arduino IDE Studio compiler for Embedded C programming.
2. Express SCH for Circuit design.

   

   

Block Diagram:    

   

 

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