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@skynettw skynettw/arduino-unit-4-2
Last active Dec 24, 2017

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int LEDRpin = 3;
int LEDGpin = 5;
int LEDBpin = 6;
void turn(int r, int g, int b) {
analogWrite(LEDRpin, r);
analogWrite(LEDGpin, g);
analogWrite(LEDBpin, b);
void setup() {
pinMode(LEDRpin, OUTPUT);
pinMode(LEDGpin, OUTPUT);
pinMode(LEDBpin, OUTPUT);
turn(0, 0, 0);
void loop() {
for(int i=0; i<256; i++)
turn(i, i, i);
for(int i=255; i>0; i--) {
turn(i, i, i);
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