REMOTE CONTROLLED GARDEN WATERING DEVICE

1/* Sketch Garden Watering Device_SEQ
2  * Doel: Meting vochtgehalte sensorpot (capacitive moisture sensor) and real time display
3  * Auteur: Leo van Nassau
4  * Dateum: 24-09-2022; finalversion 14-4-2023
5  * Versie: 2.0 */
6#include <RTClib.h>
7#include <Wire.h>
8#include <LiquidCrystal_I2C.h>
9LiquidCrystal_I2C lcd(0x27, 16, 2); //0x27 is the i2c address, while 16 = columns, and 2 = rows.
10// LCD I2C: SCL on A5, SDA on A4
11int msensor        = A1;           // moisture sensor is connected with the analog pin A1 of the Arduino
12int msvalue        = 0;            // moisture sensor value
13int msvaluepercent = 0;
14int airvalue     = 490;            // moisture dry air
15int watervalue   = 210;            // watervalue
16long int data;
17int GLED          = 13;            // yellow if MS < 25%
18int relayO        = 2;
19int relayW        = 3;
20int relayC        = 4;
21int relayN        = 5;
22int sdata1        = 0;            
23char week [7][4]   = {"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"};
24char month [12][4] = {"Jan"};
25const int DS1307   = 0x68;         // Address of DS1307 see data sheets
26int Time = 0;
27RTC_DS1307 RTC;
28
29void setup()
30{
31  //Programma vochtmeting en aansturing relais-beregening
32  Serial.begin(9600);
33  lcd.init();                     //Init the LCD
34  lcd.backlight();                //Activate backlight
35  lcd.home();
36
37  pinMode(msensor, INPUT);
38  pinMode(GLED, OUTPUT);
39  pinMode(relayO, OUTPUT);
40  pinMode(relayW, OUTPUT);
41  pinMode(relayC, OUTPUT);
42  pinMode(relayN, OUTPUT);
43
44  digitalWrite(GLED, LOW);
45  digitalWrite(relayO, LOW);
46  digitalWrite(relayW, LOW);
47  digitalWrite(relayC, LOW);
48  digitalWrite(relayN, LOW);
49
50  //RTC Configuration; real time instellen
51  
52  if (!RTC.begin())
53  {
54    Serial.println("ERROR");
55    while (1);
56  }
57  if (RTC.isrunning())
58  DateTime now = RTC.now();
59  delay(2000);
60  {
61  RTC.adjust(DateTime(2023, 4, 13, 13, 55, 0));
62  }
63}
64void loop()
65{
66  msvalue = analogRead(msensor);    // Vochtgehalte sensorpot
67  delay(1000);
68  lcd.clear();
69  msvaluepercent = map(msvalue, airvalue, watervalue, 0, 100);
70  lcd.setCursor(7, 0);
71  lcd.print("Soil:");
72  lcd.setCursor(12, 0);
73  lcd.print(msvaluepercent);
74  lcd.print("%");
75 DateTime now = RTC.now();
76  delay(1000);
77  lcd.setCursor(0, 0);
78  lcd.print(now.year(), DEC);
79  lcd.setCursor(0, 1);
80  lcd.print(now.month(), DEC);
81  lcd.print("/");
82  lcd.print(now.day(), DEC);
83  lcd.print(" ");
84  lcd.setCursor(7, 1);
85  lcd.print(now.hour(), DEC);
86  lcd.print(":");
87  lcd.print(now.minute(), DEC);
88  lcd.print(":");
89  lcd.print(now.second(), DEC);
90  int i = now.minute();
91  delay(1000);
92  if (i==59);
93 
94  if((msvaluepercent  < 15) && (now.hour() >=20) && (now.hour() <22))       
95  // watering activated if soil moisture content below 15% 
96  // interval dayley set on 20 tot 22 hour; remote control of 230VAC on/off supply if needed
97  {
98    digitalWrite(GLED, HIGH);   //GLED indicate MS <15% 
99    
100    Serial.println("relays activated");
101    digitalWrite(GLED, HIGH);   //GLED indicate MS <25%
102    
103  // start activation of relays in sequence : O-W-C-N
104    digitalWrite(relayO, HIGH); 
105    delay(900000);              // East on during 24 minutes
106    digitalWrite(relayO, LOW);
107    delay(360000);
108   
109    digitalWrite(relayW, HIGH);
110    delay(9000000);             // West on during 24 minutes
111    digitalWrite(relayW, LOW);
112    delay(360000);
113
114    digitalWrite(relayC, HIGH);
115    delay(1440000);             // Central on during 24 minutes
116    digitalWrite(relayC, LOW);
117    delay(360000);
118 
119    digitalWrite(relayN, HIGH);
120    delay(1440000);           // North on during 24 minutes
121    digitalWrite(relayN, LOW);
122    delay(1200000);
123  }
124  
125  Serial.print(msvaluepercent);
126  Serial.println(" %");
127  delay(500);
128  Serial.print("ÿear: ");
129  Serial.println(now.year());
130  Serial.print("month: ");
131  Serial.println(now.month());
132  Serial.print("hour: ");
133  Serial.println(now.hour());
134  Serial.print("minute: ");
135  Serial.println(now.minute());
136  Serial.print("second :" );
137  Serial.println(now.second());
138  {
139    lcd.clear();
140  }
141}