#include <elapsedMillis.h>

elapsedMillis timer;
#define button 2
#define red 6
#define green 4
#define blue 5
int pb = 0;

void setup() {
  // put your setup code here, to run once:
pinMode(button, INPUT_PULLUP);
pinMode(red, OUTPUT);
pinMode(green, OUTPUT);
pinMode(blue, OUTPUT);
Serial.begin(9600);
}

void loop() {
  // put your main code here, to run repeatedly:
pb = digitalRead(button);

if (pb == 0) {
  digitalWrite(red, LOW);
  digitalWrite(green, HIGH);
  digitalWrite(blue, LOW);
}
else{
  digitalWrite(red, HIGH);
    digitalWrite(green, HIGH);
  digitalWrite(blue, HIGH);
}

Serial.println(pb);

}