// arduino led blinker (Exxxtreme) // by SopaXorzTaker // Connect LEDS: RED-PIN4 BLUE-PIN5 void setup(){ pinMode(4,OUTPUT); pinMode(5,OUTPUT); } void loop(){ digitalWrite(4,HIGH); digitalWrite(5,HIGH); delay(1000); digitalWrite(5,LOW); delay(1000); digitalWrite(4,LOW); delay(1000); }