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Headers Pins2.54mm1*10P |
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KiCad 9.0 |
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Soldering iron (generic) |
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Soldering Iron Wire |
LED Tester
This project is a simple LED tester, designed to quickly check LEDs of different colors, sizes, and forward voltages.
Instead of soldering an LED into a circuit just to see if it works, this tester lets you connect it directly and check functionality instantly.
Features:
Tests a wide range of standard and high-brightness LEDs.
Easy-to-use Female Pin Header for fast connection.
Compact design that fits perfectly on any workbench.
Saves time when sorting and verifying LEDs before building circuits.
Why use an LED tester?
LEDs vary in brightness and forward voltage depending on their color and type. This tester lets you verify if the LED works and observe its brightness without needing resistors or breadboards every time.
Applications:
Checking LEDs before soldering them into circuits.
Sorting bulk LEDs by brightness or color.
Educational tool for learning about LED forward voltage.
Schematics:

LED Tester
*PCBWay community is a sharing platform. We are not responsible for any design issues and parameter issues (board thickness, surface finish, etc.) you choose.
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Ondřej Kuběna
Sep 04,2025
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