USB multimeter

Here's a USB multimeter. Not an accurate meter, but gives a first indication of the relevant data.

What is the point of all this? Take a look at my first video, then you know what it makes sense to check what power the mobile phone is charging in the car with.

Also the same is available at AliExpress Product-AT34 USB 3.0 Color LCD Voltmeter Ammeter Multimeter Battery Charge Voltage Current Meter Power Bank USB Tester

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