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If you have anything to do with DIY electronics, circuit bending, or just messing around with microcontrollers, you will undoubtedly amass quite a collection of LEDs. A great majority of these will be clear, and will only show a color after applying a voltage to them. Also, if you order a batch, some of them will not work, and the only way to find out is to test them. 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…
Lemon Led tester – “Juice your leds” - [Link]
