TempearureSwitch.cpp

#include "TemperatureSwitch.h"

void handleButtonPressed() {
  // Exit if already pressed
  if (buttonPressed) return;

  //startMillis = millis();

  // Set flag
  buttonPressed = true;
  waitingTime = false;

  // Log
  if (debug) Serial.println("Button pressed!");

  // Flag to store actual time
  getTime = true;
}

void checkTemperature() {
  float actualTemperature = temperatureSensor.readTemperatureC();
  /*if (!step) {
    actualTemperature -= 1;
    if (actualTemperature < 16) step = true;
  } else {
    actualTemperature += 1;
    if (actualTemperature > 22) step = false;
  }
  delay(1000);*/
  if (debug) {
    Serial.print("Temperature: ");
    Serial.print(String(actualTemperature));
    Serial.println(" C");
  }

  if ((lowTemperatureReached(actualTemperature)) && (relayPin2.value() == LOW)) {
    if (debug) Serial.println("lowTemp - Low TEMP reached!");

    // Enable pin
    relayPin2.on();
    temperatureTime = actualTime;

    // Count the difference, where to stop
    if ((temperatureTime.minute + minutesToRun) >= 60) {
      stopMinute = (temperatureTime.minute + minutesToRun) - 60;
      if (stopMinute < 0) stopMinute = 0;
    } else {
      stopMinute = temperatureTime.minute + minutesToRun;
    }
  } else if ((highTempeartureReached(actualTemperature)) && (relayPin2.value() == HIGH)) {
    if (debug) Serial.println("lowTemp - High TEMP reached!");

    // Disable pin
    relayPin2.off();

    waitTime = actualTime;
    waitingTime = true;
    if ((waitTime.minute + minutesToRun) >= 60) {
      stopMinute = (waitTime.minute + minutesToRun) - 60;
      if (stopMinute < 0) stopMinute = 0;
    } else {
      stopMinute = waitTime.minute + minutesToRun;
    }
  }

  // Stop after 10 minutes
  if ((relayPin2.value() == HIGH) && (actualTime.minute == stopMinute)) {
    if (debug) Serial.print("lowTemp - TIME reached, stopping...");
    relayPin2.off();

    waitTime = actualTime;
    waitingTime = true;
    if ((waitTime.minute + minutesToRun) >= 60) {
      stopMinute = (waitTime.minute + minutesToRun) - 60;
      if (stopMinute < 0) stopMinute = 0;
    } else {
      stopMinute = waitTime.minute + minutesToRun;
    }
  }
}

void getDateTime() {
  if (!Rtc.IsDateTimeValid()) {
    // Common Cuases:
    //    1) the battery on the device is low or even missing and the power line was disconnected
    Serial.println("RTC lost confidence in the DateTime!");
  }

  RtcDateTime now = Rtc.GetDateTime();

  actualTime.hour = now.Hour();
  actualTime.minute = now.Minute();
  actualTime.second = now.Second();

  /*if (debug) {
    Serial.print("Time: ");
    Serial.print(String(actualTime.hour));
    Serial.print(":");
    Serial.print(String(actualTime.minute));
    Serial.print(":");
    Serial.println(String(actualTime.second));
  }*/
}

bool highTempeartureReached(float temperature) {
  if (temperature >= highTemperature) {
    return true;
  }

  return false;
}

bool lowTemperatureReached(float temperature) {
  if (temperature <= lowTemperature) {
    return true;
  }

  return false;
}

void setupPins() {
  if (debug) Serial.println("Initializing pins...");

  // Disable led pin
  ledPin.setOutput(false);

  // Disable relay Pins
  relayPin1.setOutput(false);
  relayPin2.setOutput(false);

  // Prepare interrupt pin
  pinMode(buttonPin, INPUT_PULLUP);
  attachInterrupt(buttonInterruptPin, handleButtonPressed, FALLING);
}

void setupRTC() {
  Serial.println("Initializing RTC...");
  //--------RTC SETUP ------------
  // if you are using ESP-01 then uncomment the line below to reset the pins to
  // the available pins for SDA, SCL
  // Wire.begin(0, 2); // due to limited pins, use pin 0 and 2 for SDA, SCL
  Rtc.Begin();

  RtcDateTime compiled = RtcDateTime(__DATE__, __TIME__);

  if (!Rtc.IsDateTimeValid()) {
    // Common Cuases:
    //    1) first time you ran and the device wasn't running yet
    //    2) the battery on the device is low or even missing

    Serial.println("RTC lost confidence in the DateTime!");

    // following line sets the RTC to the date & time this sketch was compiled
    // it will also reset the valid flag internally unless the Rtc device is
    // having an issue

    Rtc.SetDateTime(compiled);
  }

  if (!Rtc.GetIsRunning()) {
    Serial.println("RTC was not actively running, starting now");
    Rtc.SetIsRunning(true);
  }

  RtcDateTime now = Rtc.GetDateTime();
  if (now < compiled) {
    Serial.println("RTC is older than compile time!  (Updating DateTime)");
    Rtc.SetDateTime(compiled);
  } else if (now > compiled)  {
    Serial.println("RTC is newer than compile time. (this is expected)");
  } else if (now == compiled) {
    Serial.println("RTC is the same as compile time! (not expected but all is fine)");
  }

  // never assume the Rtc was last configured by you, so
  // just clear them to your needed state
  Rtc.SetSquareWavePin(DS1307SquareWaveOut_Low);
}

void setup() {
  // Set serial console
  Serial.begin(115200);
  //while (!Serial);

  // Setup pins
  setupPins();

  // Setup RTC
  setupRTC();
}

void loop() {
  // Get actual time
  getDateTime();

  if (!buttonPressed) {
    if ((actualTime.hour >= startHour) || (actualTime.hour < endHour)) {
      if (!waitingTime) {
        if (debug) {
          Serial.print("ActualMinute: ");
          Serial.print(String(actualTime.minute));
          Serial.print("/ StopMinute: ");
          Serial.println(String(stopMinute));
        }

        checkTemperature();
      } else {
        // Stop after 10 minutes
        /*if (debug) {
          Serial.print("waiting: ");
          Serial.print(String(actualTime.minute));
          Serial.print("/");
          Serial.println(String(stopMinute));
          Serial.println(String(relayPin2.value()));
        }*/
        if ((relayPin2.value() == LOW) && (actualTime.minute == stopMinute)) {
          waitingTime = false;
          stopMinute = -1;
        }
      }
    } else {
      //Whatever
    }
  } else {
    if (getTime) {
      // Set button time
      buttonTime = actualTime;

      if (debug) {
        Serial.print(String(buttonTime.hour));
        Serial.print(":");
        Serial.print(String(buttonTime.minute));
        Serial.println(" - Button Time");
      }

      // Reset flag
      getTime = false;

      // Set pin
      relayPin2.on();
    }

    if ((buttonTime.minute + minutesToRun) >= 60) {
      stopMinute = (buttonTime.minute + minutesToRun) - 60;
      if (stopMinute < 0) stopMinute = 0;
    } else {
      stopMinute = buttonTime.minute + minutesToRun;
    }

    if (debug) {
      Serial.print("button: ");
      Serial.print(String(actualTime.minute));
      Serial.print(" - Stop minute: ");
      Serial.println(String(stopMinute));

      Serial.print("Temperature ");
      Serial.print(String(temperatureSensor.readTemperatureC()));
      Serial.println(" C");
    }

    if ((actualTime.minute == stopMinute) || (highTempeartureReached(temperatureSensor.readTemperatureC()))) {
      // Disable
      buttonPressed = false;

       // Disable relay
      relayPin2.off();

      waitTime = actualTime;
      waitingTime = true;
      if ((waitTime.minute + minutesToRun) >= 60) {
        stopMinute = (waitTime.minute + minutesToRun) - 60;
        if (stopMinute < 0) stopMinute = 0;
      } else {
        stopMinute = waitTime.minute + minutesToRun;
      }
    }
  }
}