Arduino Code for a better Ring bell 

We will go through this process in class just make sure your breakout board is ready to go!

CODE FOR THE BUTTON (Ring the Bell)

/*
doorbell basic BUTTON!!
by Rob Faludi faluudi.com
*/

#define VERSION "1.00a0"

int BUTTON = 2;

void setup(){
  pinMode(BUTTON, INPUT);
  Serial.begin(9600);
}

void loop(){
  //send a capital D over the serial port if the button is pressed
  if (digitalRead(BUTTON) == HIGH){
     Serial.print('D');
     delay(10); //prevents overwhelming the serial port 
  }
}

CODE FOR THE BELL (Ring my bell) 


*
doorbell basic DINGY!!
by Rob Faludi faluudi.com
*/

#define VERSION "1.00a0"

int BELL = 4;

void setup(){
  pinMode(BELL, OUTPUT);
  Serial.begin(9600);
}

void loop(){
  //look for a capital D over the serial port and ring the bell if found
  if (Serial.available() > 0){
    if (Serial.read() == 'D') {
        //ring bell briefly
        digitalWrite(BELL, HIGH);
        delay(10);
        digitalWrite(BELL, LOW);  
      }
    }
}

CODE TO CONFIRM FEEDBACK (BELLS) 


/*
doorbell feedback dingy!!
by Rob Faludi faluudi.com
*/

#define VERSION "1.00a0"

int BELL = 4;

void setup(){
  pinMode(BELL, OUTPUT);
  Serial.begin(9600);
}

void loop(){
  //look for a capital D over the serial port and ring the bell if found
  if (Serial.available() > 0){
    if (Serial.read() == 'D') {
        //send feedback that the message was received
        Serial.print('K');
        //ring bell briefly
        digitalWrite(BELL, HIGH);
        delay(10);
        digitalWrite(BELL, LOW);  
      }
    }
}

CODE TO CONFIRM FEEDBACK (BUTTONS)


/*
doorbell feedback BUTTON!!
by Rob Faludi faluudi.com
*/

#define VERSION "1.00a0"

int BUTTON = 2;
int LED    = 11;

void setup(){
  pinMode (BUTTON, INPUT);
  pinMode (LED, OUTPUT);
  Serial.begin(9600);
}

void loop(){
  //send a capital D over the serial port if the button is pressed
  if (digitalRead(BUTTON) == HIGH){
     Serial.print('D');
     delay(10); //prevents overwhelming the serial port 
  }
  
  // if a capital K is received back, light the feedback LED
  if (Serial.available() > 0){
    if (Serial.read() == 'K'){
      digitalWrite(LED, HIGH);
    } 
  }
  
  // when the button is released, turn off the
  if ( digitalRead(BUTTON) == LOW){
    digitalWrite(LED, LOW);
  }
  
}