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USB Voltage Tester

This device is used for measuring USB port voltage. Does not need a power source.

recycled-circuitsRecycled Circuits
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I made this device by soldering my used USB cable to a voltmeter that does not require a power source. The minimum voltage that can be measured is about 2 V. You can see the device working in this video: https://www.youtube.com/shorts/KrwWVyXyNtk

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