•

Terrell Britton

Published April 15, 2018

Tik Tok - MEGR 3171 Spring 2018

Two Photons were used to set up a timer which can be activated upon a press of a button.

BeginnerFull instructions provided5.5 hours1,109

Things used in this project

Hardware components

Particle Photon

Particle Internet Button

Breadboard (generic)

USB-A to Micro-USB Cable

Jumper wires (generic)

LED (generic)

SparkFun Pushbutton switch 12mm

Software apps and online services

IFTTT Maker service

Google Sheets

Story

How many of you have burned something while cooking, because you got distracted for whatever reason? Well now we have a solution to your problems. The purpose of this project is to alert you when the timer is up and notify the user to take out the laundry or food before it's too late. This can also be very useful while studying or playing video games to keep you on schedule and maximize your productivity.

Two Particle Photons were used, one was attached to a breadboard to act as the switch to start the timer and one was attached to an Internet Button to give you a LED show while keeping track of the time. The mini-push button was used as a trigger/switch. Particle.Publish and Particle.Subscribe are embedded into the two particle codes so they can communicate with each other efficiently.

The first photon will be inserted into the breadboard that detects when the button is pressed. The button is also inserted into the breadboard and connected to the photon in pin D0 while an LED is connected to the photon in D1. The LED is used to notify the user when the button is pressed without having to check the other photon. When the button is pressed an on-board LED is triggered, a signal will be sent to a second photon.

Video

One directional communication (Old Version)

Updated video with both photons Publishing and Subscribing

Updated: Bi-directional Communication (New Version)

Photon 1: LED onboard

The second photon will receive the signal and tell the internet button to start the timer. The timer is tracked through the 11 LED lights on the internet button and once the timer runs out the LEDs go into a rainbow pattern and play a note before turning off after a designated time. The LED lights can be customized within the code on Particle Build by combining the three primary colors (RED, GREEN, BLUE). The tune/note can also be customized within the code in Particle Build by varying the frequencies and time delays between the notes. After the timer runs out Vrajesh's photon will publish a signal back to Terrell's photon and a LED on the breadboard will go off.

Second photon is also coded with a backup 1 min timer that can be activated upon push on Button 3 on the internet button. The timer doesn't have an automatic turn off code but its coded to be turned off when button 3 and button 2 are pressed simultaneously for 5 seconds.

Photon 2: Internet Button

Uses

Cooking Timer

Alarm

Laundry Timer

Blazin Challenge (Buffalo Wild Wings)

Shower Timer

Possibilities are endless....

IFTTT

If THIS than THAT was set up to get notifications when the button was pressed and the timer started. Terrell (Photon 1) gets notified when button was pressed while Vrajesh (Photon 2) gets notified when the timer starts.

Terrell's Notification

1 / 2 • Vrajesh's Notification

Graph

The graph is showing the different times that the timer started and ended. The reason it is set to 2 is because that is the name of the function being called and 3 is set to show when the timer runs out. The graph also displays time so you can check if the timer is running on the coded time.

Code

// We will be using D1 to control our LED

int ledPin = D1;
int lidPin = D3;

// Our button wired to D0
int buttonPin = D0;


void setup()
{
    Particle.subscribe("Fortnite", Thang, "2c001c000e51353532343635");
    pinMode(lidPin, OUTPUT);
    digitalWrite(lidPin, LOW);
  // For input, we define the
  // pushbutton as an input-pullup
  // this uses an internal pullup resistor
  // to manage consistent reads from the device
  pinMode( buttonPin , INPUT_PULLUP); // sets pin as input

  // We also want to use the LED

  pinMode( ledPin , OUTPUT ); // sets pin as output

}
 
 
 void Thang(const char *event, String data){
     digitalWrite(lidPin, HIGH);
     delay(5000);
     digitalWrite(lidPin, LOW);
}
void loop()
{
   // find out if the button is pushed
   // or not by reading from it.
   int buttonState = digitalRead( buttonPin );
   

  

  // remember that we have wired the pushbutton to
  // ground and are using a pulldown resistor
  // that means, when the button is pushed,
  // we will get a LOW signal
  // when the button is not pushed we'll get a HIGH

  // let's use that to set our LED on or off
  delay(300);
 if( buttonState == LOW ){
     if (Particle.connected()) {
    Particle.publish("Button_Pressed", "2");
    
    // turn the LED On
    digitalWrite( ledPin, HIGH);}
  }else{
    // otherwise
    // turn the LED Off
    digitalWrite( ledPin, LOW);
 
  }
 
 }

// This #include statement was automatically added by the Particle IDE.
#include <InternetButton.h>

// This #include statement was automatically added by the Particle IDE.
SYSTEM_THREAD(ENABLED);

InternetButton b = InternetButton();

unsigned long startTime = 0;
int ledNum = 0;
bool checkFlag = false;
bool subFlag = false;
int Butt = D7;


void setup() {
    //initiating Internet button
    b.allLedsOff();
    b.begin();
    initPomo();
    pinMode(Butt, OUTPUT);
    digitalWrite(Butt, LOW);
    

    Particle.subscribe("Button_Pressed", DatThang, "2a003e000d47343438323536");
   }

void DatThang(const char *event, const char *data){
    
    b.ledOn(1,255,0,0);
    delay(1000);
    //b.ledOff(1);
    //delay(10);
    
    b.ledOn(2,255,69,0);
    delay(1000);
    //b.ledOff(2);
    //delay(20);
    
    b.ledOn(3,255,215,0);
    delay(1000);
    //b.ledOff(3);
    //delay(30);
    
    b.ledOn(4,188,143,143);
    delay(1000);
    //b.ledOff(4);
    //delay(10);
    
    b.ledOn(5,148,0,211);
    delay(1000);
    //b.ledOff(5);
    //delay(10);
    
    b.ledOn(6,0,0,139);
    delay(1000);
    //b.ledOff(6);
    //delay(10);
    
    b.ledOn(7,65,105,225);
    delay(1000);
    //b.ledOff(7);
    //delay(10);
    
    b.ledOn(8,64,224,208);
    delay(1000);
    //b.ledOff(8);
    //delay(10);
    
    b.ledOn(9,34,139,34);
    delay(1000);
    //b.ledOff(9);
    //delay(10);
    
    b.ledOn(10,127,255,0);
    delay(1000);
    //b.ledOff(10);
    //delay(10);
    
    b.ledOn(11,3,255,0);
    delay(1000);
    //b.ledOff(11);
    //delay(10);
    
    b.rainbow(10);
    delay(5000);
    b.allLedsOff();
    b.playSong("E5,2,G5,8,E6,8,C6,4,D6,8,G6,8");
    Particle.publish("Fortnite", "3");
  
    //digitalWrite(Butt, HIGH);
    //pomoMain();
}
void loop() {
    checkButton();
    pomoMain();
}//main Application Loop


void pomoMain(){
    if(millis()-startTime > 100UL && checkFlag){//750UL = .75seconds, ex: 327000UL = 5.45 minutes (at 5.45 minutes this will make a work session around 45 minutes with a 15 minute break)
        if(ledNum > 10){
            checkFlag = false;
            subFlag = true;
            partiTime();
        }else if(ledNum > 7){
            b.ledOn(++ledNum, 0,53,60); //ex: b.ledOn(ledNumber, red, green, blue) feel free to Modify these colors
        }else{
            b.ledOn(++ledNum, 200, 50, 100); // feel free to modify these colors :)
        }
        
        startTime = millis();
        
    }
}//pomoMain() is end of "work" cycle

void partiTime(){
    
    while(b.buttonOn(3) == 0 && subFlag){
        b.rainbow(8);
        Particle.process();
    }
    b.allLedsOff();
    b.playSong("E5,2,G5,8,E6,8,C6,4,D6,8,G6,8"); //song that plays at Reset
    initPomo();
    
}//partiTime function = end of full cycle

void initPomo(){
    ledNum = 0;
    b.ledOn(ledNum, 105,0,255);
    startTime = millis(); 
    checkFlag = false;
    subFlag = false;
}//initializing function for variables

void checkButton(){
    
    if(b.buttonOn(3) || b.buttonOn(2)){
        checkFlag = !checkFlag;
        delay(50);
        while(b.buttonOn(3));
        delay(50);
    }//end of checkFlag toggle
    
}//checkButton() is for Flag Checking

Credits

Vrajesh Patel

1 project • 1 follower

University of North Carolina at Charlotte- Mechanical Engineering Major

Contact

Tik Tok - MEGR 3171 Spring 2018