const int BLUE{5}; const int GREEN{6}; const int RED{7}; const int SWITCH_PIN{4}; const int INTERRUPT_PIN {2}; const int LIGHT_DETECTOR {A6}; void setup() { Serial.begin(9600); Serial.println("In Setup"); } void loop() { int pins[]{RED, GREEN, BLUE}; Serial.println("In loop"); delay(1000); }