After some weeks without any free time for new projects, i give you my new led tester with brightness control.
From time to time i need to test some leds and before i had a battery with a resistor hanging on to teste them.
This is by far the worst solution to have on my workbench.
Therefore i decided to make this led tester to include in my workbench’s tools and it is capable of changing the brightness and connect bicolor leds. [via]
Source: RUI JC