#define R1 6
#define R2 7
#define R3 9
#define R4 8
void setup() {
pinMode(R1, OUTPUT);
pinMode(R2, OUTPUT);
pinMode(R3, OUTPUT);
pinMode(R4, OUTPUT);
digitalWrite(R1,HIGH);
digitalWrite(R2,HIGH);
digitalWrite(R3,HIGH);
digitalWrite(R4,HIGH);
}
void loop() {
// put your main code here, to run repeatedly:
digitalWrite(R1, LOW);
delay(3000);
digitalWrite(R1, HIGH);
digitalWrite(R2, LOW);
delay(3000);
digitalWrite(R2, HIGH);
digitalWrite(R3, LOW);
delay(3000);
digitalWrite(R3, HIGH);
delay(4000);
digitalWrite(R2, LOW);
digitalWrite(R1, LOW);
delay(3000);
digitalWrite(R1, HIGH);
digitalWrite(R2, HIGH);
digitalWrite(R2, LOW);
digitalWrite(R3, LOW);
delay(3000);
digitalWrite(R2, HIGH);
digitalWrite(R3, HIGH);
digitalWrite(R1, LOW);
digitalWrite(R3, LOW);
delay(3000);
digitalWrite(R3, HIGH);
digitalWrite(R1, HIGH);
digitalWrite(R1, LOW);
digitalWrite(R2, LOW);
digitalWrite(R3, LOW);
delay(3000);
digitalWrite(R3, HIGH);
digitalWrite(R2, LOW );
digitalWrite(R1, HIGH);
digitalWrite(R3, LOW);
digitalWrite(R1, LOW);
delay(3000);
digitalWrite(R1, HIGH);
digitalWrite(R3, HIGH);
delay(3000);
}
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