The probe to test the LEDs 

Get comfortable and make a Cup of tea, the video is long, but very useful and informative.
Made a probe to test both a single led and large groups of LEDs. The probe is self-contained, powered by a lithium-ion battery with charging capability. Everything is made from scratch, starting from the scheme and ending with the case. Spent on the production of the probe 0 rubles, all of the old junk, the very case when you managed to make a candy from you know what.
#Homemade #To Cdelaysam #Kulibin #LEDs #Lights #Ham #Schema #Tester #Tester #Converter