RememberAir - helps you remember to air your room

1#include <DHT.h>
2
3#define WINDOWPIN 2
4#define CONTROLLED 13
5#define  DHTPIN 3
6#define DHTTYPE DHT11
7#define REDLED 10
8#define YELLOWLED 11
9#define  GREENLED 12
10#define TRIPWIRETRIGGER 7
11#define TRIPWIREECHO 6
12#define ACTIONLED  8
13
14class Tripwire {
15  public:
16    Tripwire(){
17      pinMode(TRIPWIRETRIGGER,  OUTPUT);
18      pinMode(TRIPWIREECHO, INPUT);
19    };
20    ~Tripwire(){};
21    bool isTripped() {
22      // sample 3 times to eliminate most noise
23      bool  wasTripped = 1;
24      for(int i = 0; i < 3; i++) {
25        // pulse to check  obstacles
26        digitalWrite(TRIPWIRETRIGGER, HIGH);
27        delayMicroseconds(10);
28        digitalWrite(TRIPWIRETRIGGER, LOW);
29        // read to check echo time
30        unsigned long duration = pulseIn(TRIPWIREECHO, HIGH);
31//        Serial.print(duration);  Serial.print("\
32");
33        // check if wire was tripped (aka lower duration  than threshold)
34        wasTripped &= duration <= tripDuration;      
35      }
36      Serial.print("\
37Tripwire tripped? "); Serial.print(wasTripped);
38      return  wasTripped;
39    }
40  private:
41    unsigned long tripDuration = 3000;
42};
43
44class  Window {
45  public:
46    Window() {
47      pinMode(WINDOWPIN, INPUT);
48    }
49    ~Window(){};
50    bool isClosed() {
51      bool state = digitalRead(WINDOWPIN);
52      for (int counter = 0; counter < stableTime; counter++) {
53        delay(1);
54        bool temp = digitalRead(WINDOWPIN);
55        if (temp != state) counter  = 0;
56        state = temp;
57      }
58      if (state) {
59        Serial.print("\
60window  is closed");
61      } else {
62        Serial.print("\
63window is open");
64      }
65      return state;
66    }
67  private:
68    int stableTime = 10;
69};
70
71class  LED {
72  public:
73    LED(){
74      randomSeed(analogRead(0));
75      };
76    ~LED(){};
77    void setPin(byte pin) {
78      ledPin = pin;
79      pinMode(ledPin,  OUTPUT);
80    }
81    byte getPin() {return ledPin;};
82    void setOn() {
83      isOn = 1;
84      digitalWrite(ledPin, HIGH);
85    }
86    void setOff()  {
87      isOn = 0;
88      digitalWrite(ledPin, LOW);
89    }
90    void randomBlink(int  duration) {
91      int counter = 0;
92      while (counter < duration) {
93        toggle();
94        int randomTime = random(100, 1000);
95        counter  += randomTime;
96        delay(randomTime);
97      }
98      setOff();
99    }
100    void toggle() {
101//      Serial.print("toggling");Serial.print(isOn);
102      if (isOn) {
103        setOff();
104      } else {
105        setOn();
106      }
107    }
108  private:
109    byte ledPin;
110    bool isOn = 0;
111};
112
113LED  controlLed;
114LED redLed;
115LED yellowLed;
116LED greenLed;
117LED actionLed;
118Window  window;
119DHT dht(DHTPIN, DHTTYPE);
120const float upperHumidityBound = 80;
121const  float lowerHumidityBound = 60;
122Tripwire wire;
123// for indicating humidity,  imaginary
124LED humidityLed;
125// bool for indicting if human intervention is  requiredd to remedy humidity values
126bool isActionRequired;
127
128void setup()  {
129  // put your setup code here, to run once:
130  Serial.begin(9600);
131  Serial.print("setup\
132");
133  
134  controlLed.setPin(CONTROLLED);
135  redLed.setPin(REDLED);
136  yellowLed.setPin(YELLOWLED);
137  greenLed.setPin(GREENLED);
138  actionLed.setPin(ACTIONLED);
139  window = Window();
140
141  dht.begin();
142}
143
144void loop() {
145  // put your main code here, to run  repeatedly:  
146  if (window.isClosed()) {
147    controlLed.setOff();
148  } else  {
149    controlLed.setOn();
150  }
151  
152  delay(2000); //sampling rate of DHT  @0.5Hz
153  //turn off current HumidityLed
154  float humidity = dht.readHumidity();
155  Serial.print("\
156humidity: "); Serial.print(humidity); 
157//  float temperature  = dht.readTemperature();
158//  Serial.print(temperature);
159  humidityLed.setOff();
160  if (humidity >= upperHumidityBound) {
161    humidityLed = redLed;  
162    if  (window.isClosed()) {
163      isActionRequired = 1;
164    } else {
165      isActionRequired  = 0;
166    }
167  } else if (humidity >= lowerHumidityBound) {
168    humidityLed  = yellowLed;
169  } else {
170    humidityLed = greenLed;
171    if (!window.isClosed())  {
172      isActionRequired = 1;
173    } else {
174      isActionRequired = 0;
175    }
176  }
177  humidityLed.setOn();
178  Serial.print("\
179 Action required?  ");Serial.print(isActionRequired);
180  if(wire.isTripped()&& isActionRequired)  {
181    Serial.print("\
182take Action!");
183    actionLed.randomBlink(10000);
184  }
185  Serial.print("\
186--------------------------------------");
187}
188