Published November 17, 2021

MEGR 3171: Remote Doorbell Notification

Get cell phone notifications when the front doorbell is pressed

BeginnerFull instructions provided4 hours205

Things used in this project

Hardware components

Particle Argon

Resistor 220 ohm

Resistor 1k ohm

SparkFun Pushbutton switch 12mm

Seeed Studio Grove Buzzer

Breadboard (generic)

High Brightness LED, White

5 mm LED: Green

Jumper wires (generic)

Software apps and online services

IFTTT Maker service

Particle Build Web IDE

Story

Our project is a design that increases the functionality of a doorbell by designing it to flash lights, and send notifications to a cell phone as well as sound an alarm that someone is ringing your doorbell. We decided on this topic because a lot of people in our generation relax at home with their head phones on either listening to music or playing video games. This design would allow people to relax at home with head phones on and allow them to receive a notification of the door bell ringing on their phone as well as having lights in their house go off.

The way this project works is having a push button sensor at the front door connected to a particle argon (Argon_1) which is connected to the internet. When the push button is pressed, a signal is sent to two separate Particle Argons (Argon_2 and Argon_3) through the cloud. The signal from Argon_1 is relayed to Argon_2 to turn a buzzer on and Argon_3 to turn an LED on. Once the signal from the doorbell button turns on the buzzer and LED, a notification is sent to a cell phone through the IFTTT app to notify you that someone is at the front door.

For Argon_1 circuit, the white LED stays on as long as the circuit is powered up to to let the visitor know that the door bell has power and is functional. When the push button is pressed, the green LED blinks three times to let the visitor know the signal has been sent to the home owner. All LEDs are connected using a 220 Ohm resistor and the push button has a 1K ohm pull down resistor on the unused pins to ground to keep the given input low until the button is pressed.

Argon_2 and Argon_3 circuits are very similar except the buzzer in Argon_2 circuit was replaced by the LED in Argon_3 circuit. The Grove Shield for the Particle Mesh was used in the video because it allowed Argon_2 and the buzzer to be connected without extra jumper wires. An alternative wiring without the Grove Shield can be found in the wiring schematic provided and depending on the type of buzzer used, a pull down resistor may be required. We could have consolidated the two circuits but decided to separate them so the LED and the buzzer could be placed in two different locations inside the house.

Here is the video of our design and feel free to leave a comment or contact us with any question.

Code

int led = D4;// Assign pin D4 as led
int button = D5;// Assign pin D5 as push button 
int digitalValue; // Initializing didgital signals
void setup() { // Setting up inputs and outputs

  pinMode(button, INPUT);// setting push button as a digital input
  pinMode(led, OUTPUT);// setting led as a digital output
}      
 void loop() { //Loop that runs coninously
 digitalValue = digitalRead(button); //Telling the program to continously read the status of the button
  if (digitalValue == 1) {// If the state of the push button is true (pressed)
    Particle.publish("button-pressed","on", PRIVATE); // Send the state of the buttom to all Argons on the account
    // The following actions will notify the visitor that the home owner has been notified by blinking the led.
    digitalWrite(led, HIGH);// Turn led on
    delay(1000);   // on signal lasts for 1 seconds
    digitalWrite(led, LOW); // turn led off
    delay(500); // off signal lasts for .5 seconds
    digitalWrite(led, HIGH);// Turn led on
    delay(1000);// on signal lasts for 1 seconds
    digitalWrite(led, LOW); // turn led off
    delay(500);// off signal lasts for .5 seconds
    digitalWrite(led, HIGH);// Turn led on
    delay(1000);// on signal lasts for 1 seconds
    digitalWrite(led, LOW); // turn led off
    delay(500);// off signal lasts for .5 seconds
    
  }  else{
    digitalWrite(led, LOW); // If led is not on, turn it off
}
}

int buzzer = D4; //Assign pin D4 as buzzer
int digitalValue; //Initializing digital signals
void setup() {//Setting up inputs and outputs

  pinMode(buzzer, OUTPUT);//Setting buzzer as an output
  Particle.subscribe("button-pressed", buttonpressed, MY_DEVICES);// Read the state of the buttom on Argon_1 in my devices.
}      

 void loop() {//Loop that runs continously
}
      
 void buttonpressed(const char *event, const char *data) {   //If the state on Argon_1 is true perform the following actions
    digitalWrite(buzzer, HIGH);// Turn buzzer on
    delay(100);   //on signal duration
    digitalWrite(buzzer, LOW);//Turn buzzer off
    delay(100);//off signal duration
    digitalWrite(buzzer, HIGH);// Turn buzzer on
    delay(100);//on signal duration
    digitalWrite(buzzer,LOW); //Turn buzzer off
    delay(100);//off signal duration
    digitalWrite(buzzer, HIGH);// Turn buzzer on
    delay(100);//on signal duration
    digitalWrite(buzzer, LOW);//Turn buzzer off
    delay(100);//off signal duration
    digitalWrite(buzzer, HIGH);// Turn buzzer on
    delay(100);//on signal duration
    digitalWrite(buzzer, LOW);//Turn buzzer off
    delay(100);//off signal duration
    digitalWrite(buzzer, HIGH);// Turn buzzer on
    delay(100);//on signal duration
    digitalWrite(buzzer, LOW);//Turn buzzer off
    delay(100);//off signal duration
}

int LED = D4;// Assign pin D4 as led
int digitalValue;// Initializing digital signals
void setup() { //Setting up inputs and out outputs

  pinMode(LED, OUTPUT);// setting led as a digital output
  Particle.subscribe("button-pressed", buttonpressed, MY_DEVICES);// Read the state of the buttom on Argon_1 in my devices.
}      

 void loop() {//Loop that runs continously
}
      
 void buttonpressed(const char *event, const char *data) {   //If the state on Argon_1 is true perform the following actions
    digitalWrite(LED, HIGH); //Turn led on
    delay(100);   //on signal duration
    digitalWrite(LED, LOW);// Turn led off
    delay(100);// off signal duration
    digitalWrite(LED, HIGH);//Turn led on
    delay(100);//on signal duration
    digitalWrite(LED, LOW);// Turn led off
    delay(100);// off signal duration
    digitalWrite(LED, HIGH);//Turn led on
    delay(100);//on signal duration
    digitalWrite(LED, LOW);// Turn led off
    delay(100);// off signal duration
    digitalWrite(LED, HIGH);//Turn led on
    delay(100);//on signal duration
    digitalWrite(LED, LOW);// Turn led off
    delay(100);// off signal duration
    digitalWrite(LED, HIGH);//Turn led on
    delay(100);//on signal duration
    digitalWrite(LED, LOW);// Turn led off
    delay(100);// off signal duration
    
}

Credits

Reginald Boahene

1 project • 0 followers

James Carroll

1 project • 1 follower

MEGR 3171: Remote Doorbell Notification

Things used in this project

Hardware components

Software apps and online services

Story

Schematics

Wiring Schematic

IFTTT

IFTTT

Phone Notification

Events log

Code

Argon_1

Argon_2

Argon_3

Credits

Reginald Boahene

James Carroll

Comments

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MEGR 3171: Remote Doorbell Notification

MEGR 3171: Remote Doorbell Notification

Things used in this project

Hardware components

Software apps and online services

Story

Schematics

Wiring Schematic

IFTTT

IFTTT

Phone Notification

Events log

Code

Argon_1

Argon_2

Argon_3

Credits

Reginald Boahene

James Carroll

Comments

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