What is a light cup module
A detailed close-up showcase of the Light Cup sensor module, an optical tilt and vibration detector commonly found in Arduino 37-in-1 learning kits. moreThe KY-027 Magic Light Cup is a pair of Arduino-compatible modules that create a visual illusion: tilt them and light appears to pour from one to the other. Each board contains an LED and a mercury tilt switch — when you tilt the modules, PWM-controlled brightness changes make the light "flow". This phenomenon is reminiscent of pouring water from one cup to another, hence the aptly named "Magic Light. They capture and detect light through a photodiode, a semiconductor device that converts light into an electrical signal.
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