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Magic Light Cup modules are easy to Interactive Technology Division developed a can and ARDUINO interactive modules, PWM dimming principle is to use the principle of two modules brightness changes. Mercury switches provide a digital signal that triggers the PWM regulator, through the program design, We can see the light like two cups filled with the effect of shuffling back and forth.
int LedPinA = 5 ; int LedPinB = 6 ; int ButtonPinA = 7 ; int ButtonPinB = 4 ; int buttonStateA = 0 ; int buttonStateB = 0 ; int brightness = 0 ; void setup () { pinMode ( LedPinA, OUTPUT) ; pinMode ( LedPinB, OUTPUT) ; pinMode ( ButtonPinA, INPUT) ; pinMode ( ButtonPinB, INPUT) ; } void loop () { buttonStateA = digitalRead ( ButtonPinA) ; if ( buttonStateA == HIGH && brightness! = 255 ) { brightness + +; } buttonStateB = digitalRead ( ButtonPinB) ; if ( buttonStateB == HIGH && brightness! = 0 ) { brightness -; } analogWrite ( LedPinA, brightness) ; // A few Guan Yuan (ii) ? analogWrite ( LedPinB, 255 - brightness) ; // B Yuan (ii) a few Bang ? delay ( 25 ) ; }
Note: This experiment requires two modules simultaneously.
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