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YouTubeMAKING PCB 3D
Automatic Water Tap Circuit | Hand Wash Dispenser Using Sensor | LM393 + Relay | DIY Project
In this video, I have built a fully automatic water tap system that works without any physical touch. The circuit uses an IR sensor to detect hand movement near the tap. When a hand is detected, the signal is processed by the LM393 comparator circuit, which activates a relay module and turns ON a 12V solenoid valve, allowing water to flow ...
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