Tess & Jordan Final Code

Our code ended up being way more complicated than we thought it would be and took more than a few confusing sessions to complete. We had issues because we had a few actions happening inside of one continuous action which we were trying to use a while loop for. But, we used if statements instead which worked a lot better. Now, if someone gets up for more than 5 minutes during their period of sitting for 30 minutes, the timer will reset. Also, if someone sits down before their 5 minute break is up, the beep will reset and play a second beep. We've tested this code numerous times with success and now will start on the construction of our chair.

boolean sit;

boolean breaking;

//Reading integers from photocell

int photocellPin;

int photocellReading;

int sitThreshold;

// sit timer

long sitStart;

long sitEnd;

long sitLimit;

// break timer

long breakStart;

long breakEnd;

long breakLimit;

boolean firstBeep;

int firstBeepTime;

int beepWaitTime;

boolean secondBeep;

int secondBeepTime;

void setup() {

  Serial.begin(9600);

  sit = false;

  photocellPin = 0;

  sitThreshold = 600;

  sitLimit = 10000;

  

  breaking = false;

  breakLimit = 5000;

  

  

  firstBeep = false;

  firstBeepTime = 3000;

  

  beepWaitTime = 3000;

  

  secondBeep = false;

  secondBeepTime = 4000;

  pinMode(13, OUTPUT);

  Serial.println("Setup complete!");

}

void reset() {

  

  sit = false;

  breaking = false;

  

  firstBeep = false;

  secondBeep = false;

  

  sitStart = 0;

  sitEnd = 0; 

  

  breakStart = 0; 

  breakEnd = 0; 

  

 Serial.println("Resetting.");

}

void loop() { 

  

  photocellReading = analogRead(photocellPin);

  

  //sitting down on chair// 

  

  if (sit == false)  {

      if (photocellReading < sitThreshold) {

        sit = true;

        

        sitStart = millis();

        sitEnd = sitStart + sitLimit;

        Serial.println("SOMEONE IS SITTING!");

      }

  }

  //getting up for a break//

  

  if (sit && (millis() < sitEnd))  {

    if ((photocellReading >= sitThreshold) && !breaking) {

      breaking = true;

      breakStart = millis();

      breakEnd = breakStart + breakLimit;

      Serial.println("Breaking...");

    }

  }

   

   //up during break for longer than given break time//

   

    if (breaking && (millis() >= breakEnd)) {

      reset();

    }

  

   //person got up for a break but time ended before the sit limit and break time was up//

   

  if (sit && millis() < sitEnd && breaking && millis() >= breakEnd) {

    reset();

  }

  

  //first beep//

  

  if (sit && (millis() >= sitEnd) && !firstBeep) {

    firstBeep = true;

    tone(8, 300, firstBeepTime);

    Serial.println("First beep");

    delay(firstBeepTime + beepWaitTime);

    photocellReading = analogRead(photocellPin);

    if (photocellReading > sitThreshold) {

      reset();

    }

  }

  //second beep//

  

  if (sit && (millis() >= sitEnd) && firstBeep && !secondBeep) {

     secondBeep = true;

     tone(8, 400, secondBeepTime);

     Serial.println("Second beep");

     reset(); 

    }

  }