Optocoupler Tester Easy

Optocoupler Tester EasyI have long wanted to do :)The previous link is no longer available for some reason, so this post is a replacement. Parts links below: Round Magnet 3x3 mm Battery CR1220 LEDs 0805 Button 5x5 IP Sockets Toggle Switch SS-12D07G3 Screws Flat Head M2.5 - M6 Insert Nut M2-M3 Crystal Fishing Wire Links to used tools: Mini Wireless Grinder Polishers Buffers Abrasive Micro HSS Steel Twist Drill Bit LAOA Mini Hand Tools NOGA deburring tool and Blades UV Glue


My new machine:
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Photo Video Accessor