DIY Smart Plant

Take care of your plant automatically

May 16, 2021

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environmental sensing

home automation

garden

Components and supplies

LED Strip, 10 "

Water level sensor

Resistor 100 ohm

DHT11 Temperature & Humidity Sensor (3 pins)

Arduino Nano R3

Photo resistor

Buzzer

Pump 12V

Gravity: Analog Soil Moisture Sensor For Arduino

Tools and machines

Plant pot

Project description

Code

Smart_plant

c_cpp

1//import librairies
2#define FASTLED_INTERNAL 
3#include <FastLED.h>
4#include   <DHT.h>
5
6//define pins
7#define PHOTO_PIN     A7  //analog pin photoresistor
8#define   WATER_PIN     A0  //analog pin water sensor
9#define BUZZ_PIN      10    //digital   pin buzzer
10#define DHTPIN        9  // Digital pin connected to the DHT sensor
11#define   LED_PIN       11  //digital pin led
12#define NUM_LEDS      10 //number of led   of the strip
13#define DHTTYPE       DHT11 // model od dht
14#define MOISTURE_PIN   A4 //analog soil moisture pin
15#define RELAY_PIN     A5  // analog IN pin of   relay
16
17
18DHT dht(DHTPIN, DHTTYPE);
19CRGB leds[NUM_LEDS];
20
21int water_value;   //value of the water sensor
22int photo_value; // store the value from photoresistor   (0-1023)
23int moisture_value; //store the value from the soil moisture
24
25void   setup() {
26  
27  Serial.begin(9600); //sets data rate to 115200 bps
28  FastLED.addLeds<WS2812,   LED_PIN, GRB>(leds, NUM_LEDS);
29  Serial.println("DHT test");
30  dht.begin();
31   FastLED.addLeds<WS2812, LED_PIN, GRB>(leds, NUM_LEDS);
32  pinMode(PHOTO_PIN,INPUT);
33   pinMode(WATER_PIN,INPUT);
34  pinMode(BUZZ_PIN,OUTPUT);
35  pinMode(RELAY_PIN,   OUTPUT);
36  delay(1000);
37  
38}
39
40void loop() {
41  //read the value   of the moisture sensor
42  moisture_value= analogRead(MOISTURE_PIN);
43  moisture_value   = map(moisture_value,0,1023,0,100);
44  Serial.print("Moisture : ");
45  Serial.print(moisture_value);
46   Serial.println("%");
47  
48  //If the soil is dry the relay is on 
49  if   (moisture_value >= 37){
50      digitalWrite(RELAY_PIN, LOW); // turn on the pump   
51      Serial.print("Pump On");
52      Serial.print(RELAY_PIN);
53    }
54    else{
55      digitalWrite(RELAY_PIN, HIGH); // turn off the pump 
56      Serial.print("Pump   Off");
57      Serial.print(RELAY_PIN);
58    }
59  //read photoresistor value
60   int analog_value = analogRead(PHOTO_PIN);
61  int photo_value = map(analog_value,   0, 1023, 0, 100);// read value’s current range to value’s target range
62  while   (photo_value > 50){ // while is daylight do the project otherwise nothing is activated
63      
64    Serial.print("photoresistor = "); 
65    Serial.print(photo_value);
66     Serial.print("  ");  Serial.print("\
67");
68
69  //Read Water Value
70     water_value = analogRead(WATER_PIN);
71  
72    if (water_value < 3050 &&   water_value > 0){ //the buzzer makes sound if the level of water is too low
73     //read buzz sensor
74      digitalWrite(BUZZ_PIN,HIGH); 
75      delay(100);
76       digitalWrite(BUZZ_PIN,LOW);
77      delay(100);
78      
79      Serial.print("Water   box low");
80      Serial.print(" | ");
81      }
82  else if (water_value   == 0){
83      Serial.print("Water box empty !!!!!");
84      Serial.print("   | ");
85      }
86  else{
87      Serial.print("Water box level OK");
88       Serial.print("\
89");
90      Serial.print("  ");
91      }
92  //turn   on the led strip
93  for (int i = 0; i < water_value; ++i) {
94       leds[i]   = CRGB(255, 255, 0);
95       FastLED.show();
96       //delay(500);
97  }
98//turn   off the led strip
99  for (int i = water_value; i > 0; --i) {
100        leds[i]   = CRGB(0, 0, 0);
101        FastLED.show();
102  }
103//read temperature + humidity   sensor
104  float h = dht.readHumidity();
105  float t = dht.readTemperature();//as   celsius
106
107  if(isnan(h) || isnan(t)){
108    Serial.println("Failed to read   DHT sensor");
109    Serial.println("");
110    return;
111    }
112    
113   //Display message
114  Serial.print("Humidity :");
115  Serial.print(h);
116   Serial.print("%");
117  Serial.print("  |  ");
118  Serial.print("Temperature   :");
119  Serial.print(t);
120  Serial.print("°C");
121  Serial.print("\
122");
123   Serial.print("\
124");
125  Serial.print("Level Water = ");
126  Serial.print(water_value);
127   Serial.print("\
128");
129  Serial.print("  ");
130  delay(500);
131  }
132}

//import librairies
#define FASTLED_INTERNAL 
#include <FastLED.h>
#include   <DHT.h>

//define pins
#define PHOTO_PIN     A7  //analog pin photoresistor
#define   WATER_PIN     A0  //analog pin water sensor
#define BUZZ_PIN      10    //digital   pin buzzer
#define DHTPIN        9  // Digital pin connected to the DHT sensor
#define   LED_PIN       11  //digital pin led
#define NUM_LEDS      10 //number of led   of the strip
#define DHTTYPE       DHT11 // model od dht
#define MOISTURE_PIN   A4 //analog soil moisture pin
#define RELAY_PIN     A5  // analog IN pin of   relay


DHT dht(DHTPIN, DHTTYPE);
CRGB leds[NUM_LEDS];

int water_value;   //value of the water sensor
int photo_value; // store the value from photoresistor   (0-1023)
int moisture_value; //store the value from the soil moisture

void   setup() {
  
  Serial.begin(9600); //sets data rate to 115200 bps
  FastLED.addLeds<WS2812,   LED_PIN, GRB>(leds, NUM_LEDS);
  Serial.println("DHT test");
  dht.begin();
   FastLED.addLeds<WS2812, LED_PIN, GRB>(leds, NUM_LEDS);
  pinMode(PHOTO_PIN,INPUT);
   pinMode(WATER_PIN,INPUT);
  pinMode(BUZZ_PIN,OUTPUT);
  pinMode(RELAY_PIN,   OUTPUT);
  delay(1000);
  
}

void loop() {
  //read the value   of the moisture sensor
  moisture_value= analogRead(MOISTURE_PIN);
  moisture_value   = map(moisture_value,0,1023,0,100);
  Serial.print("Moisture : ");
  Serial.print(moisture_value);
   Serial.println("%");
  
  //If the soil is dry the relay is on 
  if   (moisture_value >= 37){
      digitalWrite(RELAY_PIN, LOW); // turn on the pump   
      Serial.print("Pump On");
      Serial.print(RELAY_PIN);
    }
    else{
      digitalWrite(RELAY_PIN, HIGH); // turn off the pump 
      Serial.print("Pump   Off");
      Serial.print(RELAY_PIN);
    }
  //read photoresistor value
   int analog_value = analogRead(PHOTO_PIN);
  int photo_value = map(analog_value,   0, 1023, 0, 100);// read value’s current range to value’s target range
  while   (photo_value > 50){ // while is daylight do the project otherwise nothing is activated
      
    Serial.print("photoresistor = "); 
    Serial.print(photo_value);
     Serial.print("  ");  Serial.print("\
");

  //Read Water Value
     water_value = analogRead(WATER_PIN);
  
    if (water_value < 3050 &&   water_value > 0){ //the buzzer makes sound if the level of water is too low
     //read buzz sensor
      digitalWrite(BUZZ_PIN,HIGH); 
      delay(100);
       digitalWrite(BUZZ_PIN,LOW);
      delay(100);
      
      Serial.print("Water   box low");
      Serial.print(" | ");
      }
  else if (water_value   == 0){
      Serial.print("Water box empty !!!!!");
      Serial.print("   | ");
      }
  else{
      Serial.print("Water box level OK");
       Serial.print("\
");
      Serial.print("  ");
      }
  //turn   on the led strip
  for (int i = 0; i < water_value; ++i) {
       leds[i]   = CRGB(255, 255, 0);
       FastLED.show();
       //delay(500);
  }
//turn   off the led strip
  for (int i = water_value; i > 0; --i) {
        leds[i]   = CRGB(0, 0, 0);
        FastLED.show();
  }
//read temperature + humidity   sensor
  float h = dht.readHumidity();
  float t = dht.readTemperature();//as   celsius

  if(isnan(h) || isnan(t)){
    Serial.println("Failed to read   DHT sensor");
    Serial.println("");
    return;
    }
    
   //Display message
  Serial.print("Humidity :");
  Serial.print(h);
   Serial.print("%");
  Serial.print("  |  ");
  Serial.print("Temperature   :");
  Serial.print(t);
  Serial.print("°C");
  Serial.print("\
");
   Serial.print("\
");
  Serial.print("Level Water = ");
  Serial.print(water_value);
   Serial.print("\
");
  Serial.print("  ");
  delay(500);
  }
}

Smart_plant

c_cpp

1//import librairies
2#define FASTLED_INTERNAL 
3#include <FastLED.h>
4#include  <DHT.h>
5
6//define pins
7#define PHOTO_PIN     A7  //analog pin photoresistor
8#define  WATER_PIN     A0  //analog pin water sensor
9#define BUZZ_PIN      10    //digital  pin buzzer
10#define DHTPIN        9  // Digital pin connected to the DHT sensor
11#define  LED_PIN       11  //digital pin led
12#define NUM_LEDS      10 //number of led  of the strip
13#define DHTTYPE       DHT11 // model od dht
14#define MOISTURE_PIN  A4 //analog soil moisture pin
15#define RELAY_PIN     A5  // analog IN pin of  relay
16
17
18DHT dht(DHTPIN, DHTTYPE);
19CRGB leds[NUM_LEDS];
20
21int water_value;  //value of the water sensor
22int photo_value; // store the value from photoresistor  (0-1023)
23int moisture_value; //store the value from the soil moisture
24
25void  setup() {
26  
27  Serial.begin(9600); //sets data rate to 115200 bps
28  FastLED.addLeds<WS2812,  LED_PIN, GRB>(leds, NUM_LEDS);
29  Serial.println("DHT test");
30  dht.begin();
31  FastLED.addLeds<WS2812, LED_PIN, GRB>(leds, NUM_LEDS);
32  pinMode(PHOTO_PIN,INPUT);
33  pinMode(WATER_PIN,INPUT);
34  pinMode(BUZZ_PIN,OUTPUT);
35  pinMode(RELAY_PIN,  OUTPUT);
36  delay(1000);
37  
38}
39
40void loop() {
41  //read the value  of the moisture sensor
42  moisture_value= analogRead(MOISTURE_PIN);
43  moisture_value  = map(moisture_value,0,1023,0,100);
44  Serial.print("Moisture : ");
45  Serial.print(moisture_value);
46  Serial.println("%");
47  
48  //If the soil is dry the relay is on 
49  if  (moisture_value >= 37){
50      digitalWrite(RELAY_PIN, LOW); // turn on the pump  
51      Serial.print("Pump On");
52      Serial.print(RELAY_PIN);
53    }
54   else{
55      digitalWrite(RELAY_PIN, HIGH); // turn off the pump 
56      Serial.print("Pump  Off");
57      Serial.print(RELAY_PIN);
58    }
59  //read photoresistor value
60  int analog_value = analogRead(PHOTO_PIN);
61  int photo_value = map(analog_value,  0, 1023, 0, 100);// read value’s current range to value’s target range
62  while  (photo_value > 50){ // while is daylight do the project otherwise nothing is activated
63     
64    Serial.print("photoresistor = "); 
65    Serial.print(photo_value);
66    Serial.print("  ");  Serial.print("\
67");
68
69  //Read Water Value
70    water_value = analogRead(WATER_PIN);
71  
72    if (water_value < 3050 &&  water_value > 0){ //the buzzer makes sound if the level of water is too low
73    //read buzz sensor
74      digitalWrite(BUZZ_PIN,HIGH); 
75      delay(100);
76      digitalWrite(BUZZ_PIN,LOW);
77      delay(100);
78      
79      Serial.print("Water  box low");
80      Serial.print(" | ");
81      }
82  else if (water_value  == 0){
83      Serial.print("Water box empty !!!!!");
84      Serial.print("  | ");
85      }
86  else{
87      Serial.print("Water box level OK");
88      Serial.print("\
89");
90      Serial.print("  ");
91      }
92  //turn  on the led strip
93  for (int i = 0; i < water_value; ++i) {
94       leds[i]  = CRGB(255, 255, 0);
95       FastLED.show();
96       //delay(500);
97  }
98//turn  off the led strip
99  for (int i = water_value; i > 0; --i) {
100        leds[i]  = CRGB(0, 0, 0);
101        FastLED.show();
102  }
103//read temperature + humidity  sensor
104  float h = dht.readHumidity();
105  float t = dht.readTemperature();//as  celsius
106
107  if(isnan(h) || isnan(t)){
108    Serial.println("Failed to read  DHT sensor");
109    Serial.println("");
110    return;
111    }
112    
113  //Display message
114  Serial.print("Humidity :");
115  Serial.print(h);
116  Serial.print("%");
117  Serial.print("  |  ");
118  Serial.print("Temperature  :");
119  Serial.print(t);
120  Serial.print("°C");
121  Serial.print("\
122");
123  Serial.print("\
124");
125  Serial.print("Level Water = ");
126  Serial.print(water_value);
127  Serial.print("\
128");
129  Serial.print("  ");
130  delay(500);
131  }
132}

//import librairies
#define FASTLED_INTERNAL 
#include <FastLED.h>
#include  <DHT.h>

//define pins
#define PHOTO_PIN     A7  //analog pin photoresistor
#define  WATER_PIN     A0  //analog pin water sensor
#define BUZZ_PIN      10    //digital  pin buzzer
#define DHTPIN        9  // Digital pin connected to the DHT sensor
#define  LED_PIN       11  //digital pin led
#define NUM_LEDS      10 //number of led  of the strip
#define DHTTYPE       DHT11 // model od dht
#define MOISTURE_PIN  A4 //analog soil moisture pin
#define RELAY_PIN     A5  // analog IN pin of  relay


DHT dht(DHTPIN, DHTTYPE);
CRGB leds[NUM_LEDS];

int water_value;  //value of the water sensor
int photo_value; // store the value from photoresistor  (0-1023)
int moisture_value; //store the value from the soil moisture

void  setup() {
  
  Serial.begin(9600); //sets data rate to 115200 bps
  FastLED.addLeds<WS2812,  LED_PIN, GRB>(leds, NUM_LEDS);
  Serial.println("DHT test");
  dht.begin();
  FastLED.addLeds<WS2812, LED_PIN, GRB>(leds, NUM_LEDS);
  pinMode(PHOTO_PIN,INPUT);
  pinMode(WATER_PIN,INPUT);
  pinMode(BUZZ_PIN,OUTPUT);
  pinMode(RELAY_PIN,  OUTPUT);
  delay(1000);
  
}

void loop() {
  //read the value  of the moisture sensor
  moisture_value= analogRead(MOISTURE_PIN);
  moisture_value  = map(moisture_value,0,1023,0,100);
  Serial.print("Moisture : ");
  Serial.print(moisture_value);
  Serial.println("%");
  
  //If the soil is dry the relay is on 
  if  (moisture_value >= 37){
      digitalWrite(RELAY_PIN, LOW); // turn on the pump  
      Serial.print("Pump On");
      Serial.print(RELAY_PIN);
    }
   else{
      digitalWrite(RELAY_PIN, HIGH); // turn off the pump 
      Serial.print("Pump  Off");
      Serial.print(RELAY_PIN);
    }
  //read photoresistor value
  int analog_value = analogRead(PHOTO_PIN);
  int photo_value = map(analog_value,  0, 1023, 0, 100);// read value’s current range to value’s target range
  while  (photo_value > 50){ // while is daylight do the project otherwise nothing is activated
     
    Serial.print("photoresistor = "); 
    Serial.print(photo_value);
    Serial.print("  ");  Serial.print("\
");

  //Read Water Value
    water_value = analogRead(WATER_PIN);
  
    if (water_value < 3050 &&  water_value > 0){ //the buzzer makes sound if the level of water is too low
    //read buzz sensor
      digitalWrite(BUZZ_PIN,HIGH); 
      delay(100);
      digitalWrite(BUZZ_PIN,LOW);
      delay(100);
      
      Serial.print("Water  box low");
      Serial.print(" | ");
      }
  else if (water_value  == 0){
      Serial.print("Water box empty !!!!!");
      Serial.print("  | ");
      }
  else{
      Serial.print("Water box level OK");
      Serial.print("\
");
      Serial.print("  ");
      }
  //turn  on the led strip
  for (int i = 0; i < water_value; ++i) {
       leds[i]  = CRGB(255, 255, 0);
       FastLED.show();
       //delay(500);
  }
//turn  off the led strip
  for (int i = water_value; i > 0; --i) {
        leds[i]  = CRGB(0, 0, 0);
        FastLED.show();
  }
//read temperature + humidity  sensor
  float h = dht.readHumidity();
  float t = dht.readTemperature();//as  celsius

  if(isnan(h) || isnan(t)){
    Serial.println("Failed to read  DHT sensor");
    Serial.println("");
    return;
    }
    
  //Display message
  Serial.print("Humidity :");
  Serial.print(h);
  Serial.print("%");
  Serial.print("  |  ");
  Serial.print("Temperature  :");
  Serial.print(t);
  Serial.print("°C");
  Serial.print("\
");
  Serial.print("\
");
  Serial.print("Level Water = ");
  Serial.print(water_value);
  Serial.print("\
");
  Serial.print("  ");
  delay(500);
  }
}

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