Introduction: Arduino Magic Light Cup Tutorial
Hi guys in this instructables we will learn how to use Magic light Cup module with arduino.
Arduino Magic Light Cup Module is a set of two boards, each one has a led and a mercury tilt switch. Using PWM to drive the LEDs on each module you can achieve the effect of light being "magically" transferred from one module to the other when tilting them.
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Step 1: Things You Need
Step 2: Schmatics
Connect each module using the following diagram.
KY-027 (A) Arduino
KY-027 (B) Arduino
Please follow the shown schmatics and connect everything According to it.
Step 3: Code
Please copy the following code and upload it to the arduino Board :
int ledPinA = 9;
int switchPinA = 8;
int switchStateA = 0;
int ledPinB = 6;
int switchPinB = 7;
int switchStateB = 0;
int brightness = 0;
switchStateA = digitalRead(switchPinA);
if (switchStateA == HIGH && brightness != 255)
switchStateB = digitalRead(switchPinB);
if (switchStateB == HIGH && brightness != 0)
analogWrite(ledPinA, brightness); // A slow fade out
analogWrite(ledPinB, 255 - brightness); // B slow bright up
Step 4: Magic Light Cup in Action
In this Arduino project we are using both the modules to create the magic light cup effect. The mercury switches in each module provide a digital signal that is used to regulate the brightness of the LEDs using using PWM. Tilting the modules will decrease the brightness on one module while increasing it on the other one, creating the illusion of light magically passing from one module to the other.