int ledRed = 1;
int ledBlue = 2;
int delayTime = 1000;
void setup() {
pinMode(ledRed, OUTPUT);
pinMode(ledBlue, OUTPUT);
}
void loop() {
digitalWrite(ledRed, HIGH);
delay(delayTime);
digitalWrite(ledRed, LOW);
delay(delayTime);
digitalWrite(ledBlue, HIGH);
delay(delayTime);
digitalWrite(ledBlue, LOW);
delay(delayTime);
if (delayTime<=0){
delay(3000);
delayTime = 1000;
}
else {
delayTime = delayTime-100;
}
}