LED Projects

Doggo Walking Light

Doggo Walking Light

Walking a dog in the dark comes with the safety risk of motorists who don’t see you walking, we’ve had a few close shaves with drivers turning quickly into or backing out of driveways or when crossing road intersections. So why not illuminate your favorite Doggo with a rainbow of colors to get motorists attention

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DIY LED photometer With Arduino for Physics or Chemistry Lessons

DIY LED-photometer With Arduino for Physics or Chemistry Lessons

Liquids or other objects appear colored because theyreflect or transmit certain colors and in turn swallow (absorb) others. With a so-called photometer, those colors (wavelengths) can be determined, which are absorbed by liquids. The basic principle is simple: with a LED of a certain color you first shine through a cuvette filled with water or

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