Super simple Pomodoro Timer via the Particle Internet Button!

Pomodoro.cpp

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


InternetButton b = InternetButton();

uint32_t workTime = 0;
uint32_t restTime = 0;

// Time definitions in milliseconds

uint32_t WORKPERIOD = 25*60*1000;    // 25 minutes
uint32_t RESTPERIOD = 5*60*1000;     // 5 minutes

bool startTimer = false;
bool resetTimer = false;
bool workDone = false;

uint8_t ledNum = 0;

void setup() 
{
    //initiating Internet button
    b.begin();
    initPomo();
}

void loop() {
    checkButton();
    pomoMain();
}


void pomoMain() {
    
    // Start the work time sequence
    if ((startTimer == true) && (workDone == false))
    {
        if(millis()-workTime >= WORKPERIOD/8)
        {
            workTime = millis();
            if (ledNum < 9)
            {
                ledNum++;
                b.ledOn(ledNum, 0,100,10);
            }
            if (ledNum == 8) 
            {
                workDone = true;
                Particle.publish("Pomo", "WORK ENDED",PRIVATE);
                b.playSong("E5,2,G5,8,E6,8,C6,4,D6,8,G6,8\n"); //song that plays at completion of work time
                b.ledOn(9, 100, 0,50);
                ledNum++;
                Particle.publish("Pomo", "REST STARTED",PRIVATE);
                restTime = millis();
            }
        }
    }
    // If work time is complete, move on to rest time sequence
    else if ((startTimer == true) && (workDone == true))
    {
        if(millis()-restTime >= RESTPERIOD/2)
        {
            restTime = millis();
            if (ledNum < 12 )
            {
                ledNum++;
                b.ledOn(ledNum, 100, 0,50);
            }
            if (ledNum == 11)
            {
                startTimer = false;
                Particle.publish("Pomo", "REST ENDED",PRIVATE);
                b.playSong("C6,4,G4,8,G4,8,A4,4,G4,4,0,4,B4,4,C5,4\n"); //song that plays at completion of rest time
                b.allLedsOff();
                initPomo();
            }
        }
    }
    
}


// Initialize the timer
void initPomo(){
    ledNum = 0;
    b.allLedsOff();
    workTime = 0; 
    restTime = 0;
    startTimer = false;
    resetTimer = false;
}


// Check which button is pressed
void checkButton(){
    // If either button 2,3 or 4 is pressed, start the timer
    if( b.buttonOn(2) || b.buttonOn(3) || b.buttonOn(4)){
        delay(100);
        b.ledOn(1, 0,100,10);
        Particle.publish("Pomo", "WORK STARTED", PRIVATE);
        startTimer = true;
        resetTimer = false;
        workDone = false;
        delay(100);
    }
    // If button 1 is pressed, reset the timer
    if( b.buttonOn(1)){
        b.playSong("E6,8,G6,8\n");
        delay(50);
        initPomo();
    }
}