UV counterfeit detector

UV counterfeit detector made of 27 UV LEDs. The total price is less than 15 USD.
20h 17m
3× print file
0.20 mm
0.40 mm
281.00 g
1
5
0
128
updated April 7, 2022

Description

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UV counterfeit detector made of 27 UV LEDs.

You only need a 27x 5mm UV LED, a 27x resistor (depending on which LEDs you choose), an old USB cable, a soldering iron, a bit of solder and about 300g of filament.

Thanks to the use of USB, you can connect the detector to a computer, a standard USB charger or a power bank.

An example of wiring is in the last photo (I connected each row of LEDs separately). 

For example, use this website for the calculation:
https://www.jan-lostak.eu/kalkulacky/elektrotechnika/vypocet-odporu-pro-led-diodu/

 

The total price is less than 15 USD.

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The author marked this model as their own original creation.

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