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LED Probe: A Smart, Simple Solution For Testing LEDs
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LED Probe: A Smart, Simple Solution For Testing LEDs
If you’ve worked on a project with small LEDs, you know the frustration of determining their polarity. This ingenious LED Probe from [David] packs a lot of useful features into a simple, easy-to-implement circuit. Most multimeters have a diode test function that can be used to check LEDs; however, this goes a step further. Not only will the probe light up an LED, it will light up no matter which side of the LED the leads are touching. A Red/Gre…
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