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  • JerryW73 commented on offlogic's instructable A very simple proximity detector3 years ago
    A very simple proximity detector

    OffLogic: First off.....I am - NOT - a "circuit designer"!!! But, I - AM - an "Electronics Builder", in that I am capable of designing various types of mechanical chassis/enclosures/housings - AND - the Printed Circuit Boards which go into my mechanical designs. I thought I would mention that first.I am needing a proximity sensor circuit schematic which can be mounted into a 1U rack-mount chassis and be able to detect the opening and closing of a rear rack-door, which would be between 4" to less than 12" away from the sensor. When a technician opens the rack-door, an internal light would turn-on and remain on until the door is closed. Basically, the same thing as a "refrigerator door light".I have already designed the rack chassis and have obtaine...

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    OffLogic: First off.....I am - NOT - a "circuit designer"!!! But, I - AM - an "Electronics Builder", in that I am capable of designing various types of mechanical chassis/enclosures/housings - AND - the Printed Circuit Boards which go into my mechanical designs. I thought I would mention that first.I am needing a proximity sensor circuit schematic which can be mounted into a 1U rack-mount chassis and be able to detect the opening and closing of a rear rack-door, which would be between 4" to less than 12" away from the sensor. When a technician opens the rack-door, an internal light would turn-on and remain on until the door is closed. Basically, the same thing as a "refrigerator door light".I have already designed the rack chassis and have obtained some LED lighting panels as the light source. All I need now is a "hands-free" proximity sensor or a motion detector as the trigger to turn-on this internal rack light. The reason for this "rack-light" is so a technican can work on cables and/or equipment and not have to worry about having a work-light to start with, let alone having to try to hold onto this light or finding a place to clamp it onto. A problem looking for a solution and I've got it. Can you assist me on this here? THANKS!!!You can reach me at: arrakis1200@gmail.comRegards,JBWilliams/

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