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The infrared emitter and infrared receiver should be mounted side by side as in the case of the active-optical reflectance-based proximity sensors. Also, be careful not to let the emitter and receiver ...
An infrared (IR) proximity sensor, and a small solenoid is combined here to make the 6-Volt DC powered automatic soap dispenser unit. When the infrared sensor detects the close proximity of a hand, it ...
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