blksith0 Posted November 23, 2013 Report Share Posted November 23, 2013 This came out of a lighter. You would press the button down to generate the spark and it would also makes these LEDs flash. What I don't understand is, how does the piezo sparker activate this circuit from over 1 inch away?You can press the sparker anywhere along that circuit within a 1.5 inch radius and it starts, even if no spark is made. So how is this happening?http://www.youtube.com/watch?v=k3OI7hWS2Cs Quote Link to comment Share on other sites More sharing options...
audioguru Posted November 23, 2013 Report Share Posted November 23, 2013 I saw this same question about 1 minute ago on another website.The spark makes fairly powerful local RF energy. A simple AM radio circuit (maybe a simple crystal radio) picks it up and flashes the LEDs. Quote Link to comment Share on other sites More sharing options...
blksith0 Posted November 23, 2013 Author Report Share Posted November 23, 2013 I saw this same question about 1 minute ago on another website.The spark makes fairly powerful local RF energy. A simple AM radio circuit (maybe a simple crystal radio) picks it up and flashes the LEDs.It's an easy way to find out which community is better (you guys win).And thanks for the answer. I didn't know you could fit an AM radio circuit in something that small. Quote Link to comment Share on other sites More sharing options...
audioguru Posted November 23, 2013 Report Share Posted November 23, 2013 I didn't know you could fit an AM radio circuit in something that small.The RF power is fairly high and is VERY CLOSE BY. Then an extremely simple AM radio (a crystal radio) will pick it up. Quote Link to comment Share on other sites More sharing options...
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