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This is an interesting little device for checking LEDs. It's a great conversation piece and would make a nice addition to any workbench.
So [I'd] been wanting to build an LED tester for a while. It seems like every time I wanted to make a project involving LEDs, and when first powering up my circuit, of course the LEDs don't light up. You know that it is probably in the wiring or programming, but you're not quite sure if maybe the LED is bad. Now you won't have to wonder anymore. And of course, I made it out of something fun...
Make your own Lemon LED Tester [Electronics-Lab]
In the Maker Shed:
LED Clock Kit -Red
Back-to-School Sale - 10% off every order, free Maker's Notebook with every order of $25 or more.
Use code CRZYDAN for the discount, the Maker's notebook will be added automatically. Ends 9/30/08 midnight PST
I saw this tweeted this morning and got all excited about all-natural LED testing. It was a little disappointing to find out it was a nice circuit but a false fruit. So I did the other kind: http://blog.dangerscloset.com/?p=76
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