Sensors & control - all subcategories
This circuit emits a beep and/or illuminates a LED when someone touches the door-handle from outside. The alarm will sound until the circuit will be switched-off.
author: RED Free Circuit Designs
visits: 30296
author: smartkit
visits: 20088
author: Thomas Scarborough
visits: 19320
author: Motorola
visits: 18562
author: smartkit
visits: 17310
author: RED Free Circuit Designs
visits: 17231
author: RED Free Circuit Designs
visits: 16600
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