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Find It -- Don't Lose It |
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A fuse blows and the lights go out. Everything goes dark. You fumble for the torch you know its there somewhere but where?
Let this little gadget show you where! With the battery-powered Find It circuit, you will always be able to locate a torch (flashlight), bunch of keys, door lock just about anything in darkness! While sufficient light reaches a sensor (light dependent resistor -- LDR) on the unit, nothing happens. However, when it is dark enough, a light-emitting diode (LED) begins to flash briefly about once every five seconds. This helps to locate the item. More details on this construction project can be found in the February 2000 issue of EPE Online, the world's first web-delivered electronics and computing hobbyist magazine. PURCHASE this issue or peruse more Projects |