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An automatic wash basin tap is quite helpful in maintaining hygiene as it does not need to be touched for water flow. It is especially useful in public places like restaurants and hospitals where a large number of people use the wash basins. Since the water stops flowing after use, it also prevents water wastage.<\/p>\n
This circuit lets the water flow from the tap automatically when a person comes in front of the wash basin to wash hands. The water stops flowing as soon as the person tries to leave and removes his hands away from the wash basin. The author\u2019s prototype is shown in Fig. 1.<\/p>\n Circuit diagram for the automatic wash basin tap is shown in Fig. 2. The circuit comprises an Arduino board (BOARD1), ultrasonic sensor HC-SR04, 12V normally closed solenoid valve, and a few other components. The wash basin\u2019s solenoid valve (to let water flow from the tap to which it is connected) opens automatically when a user\u2019s hands are detected just 3 to 5cm away by the ultrasonic sensor HC-SR04.<\/p>\n Oops! This is an EFY++ article, which means it's our Premium Content. You need to be a Registered User of our website to read its complete content.<\/p>\n Good News: <\/b>You can register to our website for FREE! CLICK HERE<\/a> to register now.<\/p>\n Already a registered member? <\/b>If YES, then simply login to you account below. (TIP: Use 'forgot password' feature and reset and save your new password in your browser, if you forgot the last one!)\n<\/div>\n<\/div>![\"Author\u2019s](\"https:\/\/www.electronicsforu.com\/wp-contents\/uploads\/2023\/03\/Fig.-1-Authors-prototype-on-a-breadboard-500x427.jpg\")
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