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blinking LEDs Answered

I'm planning a sort of a Halloween Scavenger hunt. I'm planning to hide boxes along a wooded trail, each with a blinking red LED on top, which is what seekers would look for. I suppose that this is a super-simple question, but I've got no real experience in electronics. But I do work well with instructions. I would like to do about ten of these, so I would appreciate any advice on how to cheaply create a bunch of blinking LED beacons. THANKS!!!!

Tags:LED

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mpilchfamily

5 years ago

You know what would make this more interesting.

Make it a Geocache. Check it out there may already be caches along the trail you plan to use. Check the site out and break out your GPS. If you have one.

http://www.geocaching.com/

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nomuse

5 years ago

Look for LEDs with blinker circuits already included.

Radio Shack had some 5mm red with blink already inside.

Other alternative is to find some cheap novelty pin from Wallgreens or whatever and hack it up for the LED.

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caitlinsdad

5 years ago

You could make hundreds of these. Look up "LED throwies". They are just an LED that has it's wires taped to a coin cell battery. You could try here for your choice of blinking LEDs, they have a little chip inside or mechanism is to them flash.

http://www.goldmine-elec-products.com/products.asp...

Hook up to a 3 volt battery, CR2032 coin cells, making sure the positive lead of the LED goes to the + side of the battery and the ground or - other lead of the led goes to the opposite side of the battery. If it doesn't light up, just switch the connections around. Ebay has lots of vendors to get a bunch of coin cells cheaply. Good luck.