Automated greenhouse with Arduino

1
2#include <SFE_BMP180.h>
3#include <Wire.h>
4SFE_BMP180 pressure;
5#define  ALTITUDE 88.0 // 
6
7//relays
8#define pinRelayHeater 2
9#define pinRelayIrrigation  3
10#define pinRelayFan 4
11
12//analog humidity sensor
13#define pinHumidity  A0
14
15// Values
16#define heaterThreshold 9
17#define fanThreshold 30
18#define  humidityThreshold 30
19#define irrigationTime 2500
20byte HeaterSd = 0;
21byte  fanSd = 0;
22byte pumpSd = 0;
23
24//sd
25#include <SPI.h>
26#include <SD.h>
27const  int chipSelect = 10;
28//Millis
29unsigned long MillisSD = 0;
30unsigned long  MillisIrrigation = 0;
31
32//RTC
33#include "RTClib.h"
34RTC_DS1307 rtc;
35char  daysOfTheWeek[7][12] = {"Sunday", "Monday", "Tuesday", "Wednesday", "Thursday",  "Friday", "Saturday"};
36
37
38
39//*************************void setup*************************
40
41void  setup()
42{
43  Serial.begin(57600);
44  Serial.println("REBOOT");
45  pinMode(pinRelayHeater,  OUTPUT);
46  pinMode(pinRelayIrrigation, OUTPUT);
47  pinMode(pinRelayFan, OUTPUT);
48  pinMode (pinHumidity, INPUT);
49
50  //temperature sensor
51  if (pressure.begin())
52    Serial.println("Temperature sensor is working");
53  else
54  {
55    //  Temperature sensor failed, check connections
56    Serial.println("Temperature  sensor failed\
57");
58    while (1); // Pause
59  }
60
61  //RTC
62  while  (!Serial); // wait for serial port to connect. Needed for native USB
63
64  if  (! rtc.begin()) {
65    Serial.println("RTC could not be found");
66    Serial.flush();
67    abort();
68  }
69
70  if (! rtc.isrunning()) {
71    Serial.println("RTC  off");
72    rtc.adjust(DateTime(F(__DATE__), F(__TIME__)));
73  }
74
75  //sd
76  if (!SD.begin(chipSelect)) {
77    Serial.println("Error SD");
78    while  (1); //Pause
79  }
80}
81
82//**************************void loop**************************
83
84void  loop()
85{
86  //**************Temperature**************
87  //*****Ambient sensor  (temperature, pressure)*****
88  char status;
89  double T, P, p0;
90
91  status  = pressure.startTemperature();
92  if (status != 0)
93  {
94    delay(status);
95
96    status = pressure.getTemperature(T);
97    if (status != 0)
98    {
99      status  = pressure.startPressure(3);
100      if (status != 0)
101      {
102        delay(status);
103        status = pressure.getPressure(P, T);
104        if (status != 0)
105        {
106          p0 = pressure.sealevel(P, ALTITUDE);
107        }
108        else Serial.println("error  retrieving pressure measurement\
109");
110      }
111      else Serial.println("error  starting pressure measurement\
112");
113    }
114    else Serial.println("error  retrieving temperature measurement\
115");
116  }
117  else Serial.println("error  starting temperature measurement\
118");
119
120
121  //*****Temperature control*****
122  //Heater
123  if (T <= heaterThreshold) {
124    digitalWrite(pinRelayHeater,  HIGH);
125    HeaterSd = 1;
126  }
127  else if (T >= (heaterThreshold + 1)) {
128    digitalWrite(pinRelayHeater, LOW);
129  }
130  else {
131    HeaterSd = 1;
132  }
133
134  //Fan
135  if (T >= (fanThreshold - 1)) {
136    digitalWrite(pinRelayFan,  HIGH);
137    fanSd = 1;
138  }
139  else if (T <= fanThreshold) {
140    digitalWrite(pinRelayFan,  LOW);
141  }
142  else {
143    fanSd = 1;
144  }
145
146
147  //**************Humitat**************
148  int AnalogHumidity;
149  int HumidityPercentage;
150
151  AnalogHumidity = analogRead(pinHumidity);
152  HumidityPercentage = map(AnalogHumidity, 775, 326, 0, 100); // manually calibrated
153
154  Serial.print("Analog: ");
155  Serial.print(AnalogHumidity);
156  Serial.print("  Percentage: ");
157  Serial.println(HumidityPercentage);
158
159  //*****Irrigation  system*****
160
161  if (((millis() - MillisIrrigation) >= 120000)) {
162    MillisIrrigation  = millis();
163    if (HumidityPercentage <= humidityThreshold) {
164      digitalWrite(pinRelayIrrigation,  HIGH);
165      delay (irrigationTime);
166      digitalWrite(pinRelayIrrigation,  LOW);
167      pumpSd = 1;
168    }
169  }
170
171  //**************RTC i SD**************
172  DateTime now = rtc.now();
173
174  //sd
175  File dataFile = SD.open("datalog.txt",  FILE_WRITE);
176
177  //Monitor serie
178  Serial.print(now.day(), DEC);
179  Serial.print('/');
180  Serial.print(now.month(), DEC);
181  Serial.print('/');
182  Serial.print(now.year(),  DEC);
183  Serial.print(" (");
184  Serial.print(daysOfTheWeek[now.dayOfTheWeek()]);
185  Serial.print(") ");
186  Serial.print(now.hour(), DEC);
187  Serial.print(':');
188  Serial.print(now.Minutee(), DEC);
189  Serial.print(':');
190  Serial.println(now.second(),  DEC);
191  Serial.print("temperature");
192  Serial.println(T);
193
194
195  int  Minute = now.Minutee();
196  int Hour = now.hour();
197  int Second = now.second();
198  int Day = now.day();
199  int Month = now.month();
200  int Year = now.year();
201
202  if (dataFile) {
203    if (((millis() - MillisSD) >= 60000)) {
204      // Day/Month/Year  Hour:Minute:Second, temperature(C), Pressure(mb), Relative Pressure(mb), Humidity(%),  heater, fan, water pump
205
206      MillisSD = millis();
207      dataFile.print(Day);
208      dataFile.print("/");
209      dataFile.print(Month);
210      dataFile.print("/");
211      dataFile.print(Year);
212      dataFile.print(" ");
213      dataFile.print(Hour);
214      dataFile.print(":");
215      dataFile.print(Minute);
216      dataFile.print(":");
217      dataFile.print(Second);
218      dataFile.print(", ");
219      dataFile.print(T);
220      dataFile.print(", ");
221      dataFile.print(P);
222      dataFile.print(",  ");
223      dataFile.print(p0);
224      dataFile.print(", ");
225      dataFile.print(HumidityPercentage);
226
227      dataFile.print(", ");
228      dataFile.print(HeaterSd);
229      dataFile.print(",  ");
230      dataFile.print(fanSd);
231      dataFile.print(", ");
232      dataFile.println(pumpSd);
233
234      fanSd = 0;
235      HeaterSd = 0;
236      pumpSd = 0;
237    }
238    dataFile.close();
239  }
240}
241