Published March 8, 2024 © MIT

Silent Alarm for the deaf community

In todays world, the deaf community needs a home security system that will call the police if a door is breached.

BeginnerShowcase (no instructions)Over 1 day111

Things used in this project

Hardware components

Particle Photon

main part of the project.

ElectroPeak 0.96" OLED 64x128 Display Module

Displays status of sensor.

SparkFun Atmospheric Sensor Breakout - BME280

Works along with encoder.

SparkFun RedBot Sensor - Wheel Encoder

Encoder that allows use of the button option to operate a function.

Adafruit NeoPixel Ring: WS2812 5050 RGB LED

This ring allows use of many light codes when a certain phase of the project is taking place.

Seeed Studio Grove - PIR Motion Sensor

Sensor that detects movement 360%.

Breadboard (generic)

This piece puts together all needed components to work together as directed by the photon 2 processor inputs or codes.

Hand tools and fabrication machines

Wire Stripper & Cutter, 18-10 AWG / 0.75-4mm² Capacity Wires

Needed to cut wire to correct length for breadboard.

Soldering iron (generic)

To make circuts complete.

Solder Wire, Lead Free

To connect two pieces to make a complete circut.

Digilent Mastech MS8217 Autorange Digital Multimeter

To check to make sure you are getting the correct power supply to any item on the project.

Laser cutter (generic)

used to make items for this project, It was used to make the display box for my project.

Story

This project is based on how my deaf parents lived in their home. They had devices that would let them know if their phone would ring by a lamp by the phone would blink. Or if some one was ringing the doorbell, a light by the door would blink. Now I put together a sensor that would detect a breach at any door, that would blink fast to let them know to get to a room for safety. While the sensor would notify the police department to send a officer to do a well being check. I know this is just a project. But if it could be used to offer a piece of mind in the family, that they can be rest assured of their safety.

Code

Alert for Deaf People

/* 
 * Project Alert for deaf people
 * Author: Randall Chavez
 * Date: 03-04-2024
 * For comprehensive documentation and examples, please visit:
 * https://docs.particle.io/firmware/best-practices/firmware-template/
 */

// Include Particle Device OS APIs
#include "Particle.h" 
#include "IoTClassroom_CNM.h"
#include <Encoder.h>
#include "Adafruit_SSD1306.h"
#include "Adafruit_GFX.h"
#include <neopixel.h>
#include <colors.h>
int motionPin = D4;
const int PINA = D8;
const int PINB = D9;

int position;
int lastPosition;

Encoder myEncoder(PINA, PINB);
Adafruit_SSD1306 display(-1);


int bri=255;
int val;
int myhue=4;
//
void pixelFill(int start,int end,int color);// This is how to difine a function// 

SYSTEM_MODE(MANUAL);
bool buttonOnOff;
const int MYWEMO=3; 
Button wemoButton (D16);
SYSTEM_THREAD(ENABLED);
const int PIXELCOUNT = 20;
Adafruit_NeoPixel pixel ( PIXELCOUNT, SPI1, WS2812B) ;


void setup(){ 
  Serial.begin(9600); 
  waitFor(Serial.isConnected,10000);


  pinMode(motionPin, INPUT);
  WiFi.on();
  WiFi.clearCredentials();
  WiFi.setCredentials("IoTNetwork");
  
  WiFi.connect();
  while(WiFi.connecting()) {
    Serial.printf(".");
  }
  Serial.printf("\n\n");
  display.begin(SSD1306_SWITCHCAPVCC, 0x3C); 
//setHue(myhue, false, HueRed, (255),255);
  display.setTextSize(1);
  display.setTextColor(WHITE);
  display.clearDisplay();
  display.display();
 
  
  delay(5000);
pixel.begin();
 pixel.setBrightness (bri); 
 pixel.show();

 delay (2000);
}

void loop(){
  display.setCursor(0,0);
position = myEncoder.read ();
if (position != lastPosition)
{
Serial.printf("Encoder position: %i\n", position); 
lastPosition = position;
}



  val = digitalRead(motionPin);



if (val == HIGH){
  setHue(myhue, true, HueRed, (255),255);
  Serial.printf("motion detected --- val = %i\n", val);
  display.printf("Police Dispatched");
  display.display();
  display.clearDisplay();
  pixelFill(0,20,red);

}

else{ 
  setHue(myhue, false, HueRed, (255),255);       
  Serial. printf("no motion detected -- val = %i\n", val  );
  display.printf("All Clear");
  display.display();
  display.clearDisplay();
  pixelFill(0,20,blue);
  
  }
  
  if(wemoButton.isClicked()){
    buttonOnOff=!buttonOnOff;
  }
  if(buttonOnOff==true){
    Serial.printf("Turning on Wemo# %i\n",MYWEMO);
    wemoWrite(MYWEMO,HIGH);
  }
  else{
    wemoWrite(MYWEMO,LOW);
    Serial.printf("Turning off Wemo# %i\n",MYWEMO);

  }

}

void pixelFill(int start, int end, int pixColor){ 
  int i;
   for(i=start; i<end; i ++){
    pixel.setPixelColor (i, pixColor);
    pixel.show();
   }
   }