#define RLED 8 #define GLED 9 #define BLED 10 void setup() { pinMode(RLED, OUTPUT); pinMode(GLED, OUTPUT); pinMode(BLED, OUTPUT); Serial.begin(9600); } void loop() { digitalWrite(BLED, LOW); digitalWrite(RLED, LOW); digitalWrite(GLED, LOW); delay(3); digitalWrite(BLED, HIGH); digitalWrite(GLED, HIGH); delay(15); }