// constants (or #define with no ; at end of line) won't change. They're used here to set pin numbers:
int redLED = 10;
int greenLED = 9;
int blueLED = 8;
String myColour;
String msg="What colour LED? ";
int delayTime = 500;
// Variables will change:


void setup() {
  pinMode (redLED, OUTPUT);
  pinMode (greenLED, OUTPUT);
  pinMode (blueLED, OUTPUT);
  Serial.begin(9600);
  }

void loop() {
Serial.println(msg);
 
  digitalWrite(redLED,HIGH);
  digitalWrite(greenLED,HIGH);
  digitalWrite(blueLED,HIGH);
  delay(delayTime);
  digitalWrite(redLED,LOW);
  digitalWrite(greenLED,LOW);
  digitalWrite(blueLED,LOW);
    delay(delayTime);

}