General purpose Opto Isolator board v1.0This Opto Isolator circuit allows you to pass signals between two circuits without having to connect them electrically. They are great for eliminating noise problems, or to connect circuits that have different voltages.

General purpose Opto Isolator board v1.0
See more details at www.reprap.org

 
General purpose Opto Isolator board v1.0
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