Arduino – Digital Input + Digital Output – Switch 2 + LED 8
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int leds[]= {6, 7, 8, 9, 10, 11, 12, 13}; int swUp=5, swDown=4; int numbers=0; unsigned long cnt=0; void setup() { for (int i=0;i<8;i++) { pinMode(leds[i], OUTPUT); } pinMode(swUp, INPUT); pinMode(swDown, INPUT); } void loop() { if (cnt==0 && digitalRead(swUp)) { numbers++; if (numbers>8) { numbers=8; } cnt=millis(); } else if (cnt==0 && digitalRead(swDown)) { numbers--; if (numbers<0) { numbers=0; } cnt=millis(); } else if (cnt > 0 && millis() > cnt+500) { cnt=0; } for (int i=0;i<8;i++) { if (i<numbers) { digitalWrite(leds[i], HIGH); } else { digitalWrite(leds[i], LOW); } } } |