Autonomous Indoor Greenhouse - Mature Real Working Project

1//===GreenHouse sketch created by Victor Onofrei. 2019===
2#include  <DHT.h>
3#include <Wire.h> 
4#include <LiquidCrystal_I2C.h>
5#include <HCSR04.h>
6#include  <SandTimer.h>
7#define DHTPIN 2
8#define DHTTYPE DHT22
9DHT dht(DHTPIN, DHTTYPE);
10LiquidCrystal_I2C  lcd(0x27,20,4);
11HCSR04 watersens(5,6);
12SandTimer timersensor;
13SandTimer  backlightimer;
14SandTimer pump1timer;
15SandTimer pump2timer;
16const int lowaterled=4;
17const  int venthum=7;
18const int irsensor=8;
19const int pump2=9;
20const int heaterpin=10;
21const  int lightpin=11;
22const int pump1=12;
23const int timerpin=13;
24int h=0;
25int  t=0;
26int Soil1=0; //lower soil moisture sensor
27int Soil2=0;
28int settemp;
29int  daytemp=26;
30int nightemp=23;
31int timervalue;
32int motiondetect;
33int waterlevel;
34
35
36void  setup() {
37  dht.begin();
38  lcd.init();
39  timersensor.start(2000);
40  backlightimer.start(30000);
41  pump1timer.start(10000);
42  pump2timer.start(10000);
43  pinMode(heaterpin,  OUTPUT);
44  pinMode(timerpin, INPUT);
45  pinMode(lightpin, OUTPUT);
46  pinMode(lowaterled,  OUTPUT);
47  pinMode(venthum, OUTPUT);
48  pinMode(irsensor, INPUT);
49  pinMode(pump1,  OUTPUT);
50  pinMode(pump2, OUTPUT);
51  digitalWrite(pump1, HIGH);
52  digitalWrite(pump2,  HIGH);
53 }
54
55void loop() {
56  sensorcheck();
57  lowater();
58  settempset();
59  humidcontrol();
60  runheat();
61  runlights();
62  lcdprint();
63  lcdbacklight();
64  watering();
65 }
66
67//===========Functions=============
68
69void sensorcheck(){
70  if (timersensor.finished()){
71    h=dht.readHumidity();
72    t=dht.readTemperature();
73    timervalue=digitalRead(timerpin);
74    Soil1=analogRead(6);
75    Soil2=analogRead(7);
76    Soil1=map(Soil1,560,270,01,99);
77    Soil2=map(Soil2,545,270,01,99);
78    motiondetect=digitalRead(irsensor);
79    waterlevel=watersens.dist();
80    waterlevel=map(waterlevel,3,57,99,01);
81    timersensor.startOver();
82  }
83}
84
85void lowater(){
86  if (waterlevel<=3){
87    digitalWrite(lowaterled, HIGH);
88  }
89  else{
90    digitalWrite(lowaterled,  LOW);
91  }
92}
93
94void watering(){
95  if ((waterlevel>=3)&&(Soil1<=24)){
96    digitalWrite(pump1, LOW);
97//    if (pump1timer.finished()){
98//      digitalWrite(pump1,  HIGH);
99//      pump1timer.startOver();
100//    }
101  }
102else{
103  digitalWrite(pump1,  HIGH);  
104}
105  
106  if ((waterlevel>=3)&&(Soil2<=24)){
107    digitalWrite(pump2,  LOW);
108//    if (pump2timer.finished()){
109//      digitalWrite(pump2, HIGH);
110//      pump2timer.startOver();
111//    }
112  }
113else {
114  digitalWrite(pump2,  HIGH);
115}
116}
117
118void settempset(){
119  if (timervalue==HIGH){
120  settemp=daytemp;
121}
122else{
123  settemp=nightemp;
124}
125}
126
127void lcdbacklight(){
128    if (motiondetect==1){
129    lcd.backlight();
130  }
131else if ((motiondetect==0)&&(backlightimer.finished())){
132  lcd.noBacklight();
133  backlightimer.startOver();
134}
135}
136
137void humidcontrol(){
138  if(h>=72){
139  digitalWrite(venthum, HIGH);
140}
141else if (h<=65){
142  digitalWrite(venthum,  LOW);
143}
144}
145
146void runheat(){
147  if(t>=settemp){
148  digitalWrite(heaterpin,  HIGH);
149}
150else{
151  digitalWrite(heaterpin, LOW);
152}
153}
154
155void runlights(){
156if  (timervalue==LOW){
157  digitalWrite(lightpin, HIGH);
158}
159else{
160  digitalWrite(lightpin,  LOW);
161}
162}
163
164void lcdprint(){
165  lcd.setCursor(0,0);
166  lcd.print("T/H:");
167  lcd.print(t);
168  lcd.print("/");
169  lcd.print(h);
170  lcd.setCursor(10,0);
171  lcd.print("WL:");
172  lcd.print(waterlevel);
173  lcd.print("%");
174  lcd.setCursor(0,1);
175  lcd.print("Z1:");
176  lcd.print(Soil1);
177  lcd.print("%");
178  lcd.print("  ");
179  lcd.print("Z2:");
180  lcd.print(Soil2);
181  lcd.print("%");
182}