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DIY polarity Led tweezers

Posted on Thursday, May 4th, 2017 in DIY, tools, tutorials by DP

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Jesus Echavarria shared detailed instructions of how to make a simple tweezers for checking led polarity:

I usually assemble by hand all the boards I make. I use SMD components, especially in 0805 format for resistors, capacitors and leds. With the last ones, I always have the same problem: I need to check the polarity of it, to ensure that I assemble on the right way. To do it, I need the multimeter, select the diode position and test the led’s for the right polarity. Because on the assembly process I don’t usually the multimeter, why don’t make a tweezers to test the led’s? It’s an easy and very cheap project, and you’ll have a usefull tool when assembly boards. Here’s the result, after a couple of hours working on it ;).

More details at Jesus Echavarria’s blog.

This entry was posted on Thursday, May 4th, 2017 at 10:54 pm and is filed under DIY, tools, tutorials. You can follow any responses to this entry through the RSS 2.0 feed. You can skip to the end and leave a response. Pinging is currently not allowed.

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Recent Comments

  • Cyk: Well, this is an application that I'd solve with an Android smartphone. Used Moto G phones can be found on Ebay for ~€30, and thanks...
  • Noy: Yuuup
  • KH: I guess this is a failed attempt at making a pass/fail cable tester out of discrete ICs. A single pass/fail LED is not that useful....
  • Max: Considering it only seems to test that all wires conduct, I'm not sure what exactly does this show you that 7 LEDs each powered through...
  • David: Please