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#define OUTPIN 1
#define DIMPIN 3
int CBrightness = 0;
int CDimDirection = 1;
void setup() {
pinMode(OUTPIN, OUTPUT);
pinMode(DIMPIN, INPUT);
}
void loop() {
delay(1);
if (digitalRead(DIMPIN) == HIGH) { dim(); }
analogWrite(OUTPIN, CBrightness);
}
void dim() {
if (CDimDirection == 1) {
CBrightness++;
}
if (CDimDirection == 0) {
CBrightness--;
}
if (CBrightness >= 255) {
CDimDirection = 0;
}
if (CBrightness <= 0) {
CDimDirection = 1;
}
}
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