Autonomous Indoor Greenhouse - Mature Real Working Project

Another indoor greenhouse powered by Nano. 100% controlled environment with some extra perks that make life easier.

Mar 30, 2019

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environmental sensing

greenhouse

plants

Devices & Components

Arduino 4 Relays Shield

Arduino Nano

PIR Motion Sensor (generic)

RobotGeek DC Liquid Pump - Large

LED (generic)

Liquid valve

DHT22 Temperature Sensor

Ultrasonic Sensor - HC-SR04 (Generic)

Gravity: Analog Capacitive Soil Moisture Sensor- Corrosion Resistant

Standard LCD - 16x2 White on Blue

Water Tank

Hardware & Tools

Soldering iron (generic)

Project description

Code

Greenhouse Arduino code. Real, working project.

arduino

Please note that some parts of code are still in development. Always verify compatibility and don't forget keeping my name in reference. Thanks

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}

//===GreenHouse sketch created by Victor Onofrei. 2019===
#include  <DHT.h>
#include <Wire.h> 
#include <LiquidCrystal_I2C.h>
#include <HCSR04.h>
#include  <SandTimer.h>
#define DHTPIN 2
#define DHTTYPE DHT22
DHT dht(DHTPIN, DHTTYPE);
LiquidCrystal_I2C  lcd(0x27,20,4);
HCSR04 watersens(5,6);
SandTimer timersensor;
SandTimer  backlightimer;
SandTimer pump1timer;
SandTimer pump2timer;
const int lowaterled=4;
const  int venthum=7;
const int irsensor=8;
const int pump2=9;
const int heaterpin=10;
const  int lightpin=11;
const int pump1=12;
const int timerpin=13;
int h=0;
int  t=0;
int Soil1=0; //lower soil moisture sensor
int Soil2=0;
int settemp;
int  daytemp=26;
int nightemp=23;
int timervalue;
int motiondetect;
int waterlevel;


void  setup() {
  dht.begin();
  lcd.init();
  timersensor.start(2000);
  backlightimer.start(30000);
  pump1timer.start(10000);
  pump2timer.start(10000);
  pinMode(heaterpin,  OUTPUT);
  pinMode(timerpin, INPUT);
  pinMode(lightpin, OUTPUT);
  pinMode(lowaterled,  OUTPUT);
  pinMode(venthum, OUTPUT);
  pinMode(irsensor, INPUT);
  pinMode(pump1,  OUTPUT);
  pinMode(pump2, OUTPUT);
  digitalWrite(pump1, HIGH);
  digitalWrite(pump2,  HIGH);
 }

void loop() {
  sensorcheck();
  lowater();
  settempset();
  humidcontrol();
  runheat();
  runlights();
  lcdprint();
  lcdbacklight();
  watering();
 }

//===========Functions=============

void sensorcheck(){
  if (timersensor.finished()){
    h=dht.readHumidity();
    t=dht.readTemperature();
    timervalue=digitalRead(timerpin);
    Soil1=analogRead(6);
    Soil2=analogRead(7);
    Soil1=map(Soil1,560,270,01,99);
    Soil2=map(Soil2,545,270,01,99);
    motiondetect=digitalRead(irsensor);
    waterlevel=watersens.dist();
    waterlevel=map(waterlevel,3,57,99,01);
    timersensor.startOver();
  }
}

void lowater(){
  if (waterlevel<=3){
    digitalWrite(lowaterled, HIGH);
  }
  else{
    digitalWrite(lowaterled,  LOW);
  }
}

void watering(){
  if ((waterlevel>=3)&&(Soil1<=24)){
    digitalWrite(pump1, LOW);
//    if (pump1timer.finished()){
//      digitalWrite(pump1,  HIGH);
//      pump1timer.startOver();
//    }
  }
else{
  digitalWrite(pump1,  HIGH);  
}
  
  if ((waterlevel>=3)&&(Soil2<=24)){
    digitalWrite(pump2,  LOW);
//    if (pump2timer.finished()){
//      digitalWrite(pump2, HIGH);
//      pump2timer.startOver();
//    }
  }
else {
  digitalWrite(pump2,  HIGH);
}
}

void settempset(){
  if (timervalue==HIGH){
  settemp=daytemp;
}
else{
  settemp=nightemp;
}
}

void lcdbacklight(){
    if (motiondetect==1){
    lcd.backlight();
  }
else if ((motiondetect==0)&&(backlightimer.finished())){
  lcd.noBacklight();
  backlightimer.startOver();
}
}

void humidcontrol(){
  if(h>=72){
  digitalWrite(venthum, HIGH);
}
else if (h<=65){
  digitalWrite(venthum,  LOW);
}
}

void runheat(){
  if(t>=settemp){
  digitalWrite(heaterpin,  HIGH);
}
else{
  digitalWrite(heaterpin, LOW);
}
}

void runlights(){
if  (timervalue==LOW){
  digitalWrite(lightpin, HIGH);
}
else{
  digitalWrite(lightpin,  LOW);
}
}

void lcdprint(){
  lcd.setCursor(0,0);
  lcd.print("T/H:");
  lcd.print(t);
  lcd.print("/");
  lcd.print(h);
  lcd.setCursor(10,0);
  lcd.print("WL:");
  lcd.print(waterlevel);
  lcd.print("%");
  lcd.setCursor(0,1);
  lcd.print("Z1:");
  lcd.print(Soil1);
  lcd.print("%");
  lcd.print("  ");
  lcd.print("Z2:");
  lcd.print(Soil2);
  lcd.print("%");
}

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