int led1 = 2;
int led2 = 3;
int led3 = 4;
int led4 = 5;
int led5 = 6;
int led6 = 7;
int led7 = 8;
void setup() {
for (int i = 2; i <= 8; i++) {
pinMode(i, OUTPUT);
}
}
void loop() {
for (int i = 2; i <= 8; i++) {
digitalWrite(i, HIGH);
delay(500);
digitalWrite(i, LOW);
delay(500);
}
}
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