KY-027 Magic Cup Light Module

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Magic Light Cup Module is a board which has a led and a mercury tilt switch. Using PWM to drive the LEDs on the module user can achieve the effect of light being ?magically? transferred from one module to the other when tilting them. In short, it?s 2 components combined, a mercury tilt switch and a led. On tilting the module mercury inside small tube connect the switching point and make switch ON while tilting it to other side move the mercury and it disconnects the circuit and switch get OFF. The module operates on 5V DC supply.