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  • SamW6 commented on vina1991's instructable $1 AUTOMATIC WATER LEVEL CONTROLLER7 months ago
    $1 AUTOMATIC WATER LEVEL CONTROLLER

    use the same circuit just with a relay in the normally closed connection

    Just use the relay in the normally closed position, not the normally open like the one in the schematic

    Same circuit just use the relay in the normally closed position position, the one on the schematic is the normally open

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