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int piezo=A3; int led1=6; int led2=7; int led3=8; int led4=9; int led5=10; int led6=11; int led7=12; int led8=13; void setup() { pinMode(led1, OUTPUT); pinMode(led2, OUTPUT); pinMode(led3, OUTPUT); pinMode(led4, OUTPUT); pinMode(led5, OUTPUT); pinMode(led6, OUTPUT); pinMode(led7, OUTPUT); pinMode(led8, OUTPUT); } void loop() { tone(piezo, 1319); digitalWrite(led1, HIGH); digitalWrite(led2, HIGH); digitalWrite(led3, HIGH); digitalWrite(led4, HIGH); digitalWrite(led5, LOW); digitalWrite(led6, LOW); digitalWrite(led7, LOW); digitalWrite(led8, LOW); delay(500); tone(piezo, 1047); digitalWrite(led1, LOW); digitalWrite(led2, LOW); digitalWrite(led3, LOW); digitalWrite(led4, LOW); digitalWrite(led5, HIGH); digitalWrite(led6, HIGH); digitalWrite(led7, HIGH); digitalWrite(led8, HIGH); delay(500); } |