Switched smoke alarm for workshop. LED off indicates smoke alarm is active.
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LED flashing on indicates smoke alarm is deactivated.
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It can get a bit smoky in my workshop!
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Wiring.
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Schematic file below.
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Materials: 1 x Switch: 1A, spdt (single pole, double throw) 1 x Flashing blue LED: 10mm, 15mA, 3.2v 1 x 10mm LED holder/bezel 1 x Resistor: 470ohms, 1/4W Wire: 7/0.2mm Small heatshrink tubing
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knoba – Workshop Smoke Alarm Schematic – 2018.fzz
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