Basic setup code for Arduino programming session

base.ino

#define BUTTON_PIN 2

#define GREEN_LED 3
#define YELLOW_LED 4
#define RED_LED 5

#define POTENTIOMETER 0
 
void setup() { 
  pinMode(GREEN_LED, OUTPUT);
  pinMode(YELLOW_LED, OUTPUT);
  pinMode(RED_LED, OUTPUT);
  pinMode(BUTTON_PIN, INPUT);
}
 
void loop() { 
  
}