// set macros, variables
#define redLed 12 //int pinLed = 12;
#define button 4
void setup() {
  // one time configurations
  // data direction for device pins
  pinMode(redLed, OUTPUT);
  pinMode(button, INPUT);
  Serial.begin(9600); //baude rate
  }

void loop() {
  // program logic
  int buttonState = digitalRead(button); //store state in a variable

  // control program structure
  if (buttonState == LOW){ // not pressed
  digitalWrite(redLed, HIGH);// turn off RED LED
  Serial.println("BUTTON NOT PRESSED");
  delay(500);
  }else {
    digitalWrite(redLed, LOW); // turn on RED LED
    Serial.println("BUTTON PRESSED");
    delay(500);
  }

}