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• Code

  Nicole Sahagún • 09/10/2021 at 21:18 • 0 comments

  #include <LiquidCrystal.h>

  #include <Wire.h>
  int pir = 7;              
  int pirState = LOW;            
  int data = 0;
  int moistureSoil = 0;
  //const int Death = 590;
  const int Dry = 550;
  //const int Ok = 480;
  const int Wet = 380;
  LiquidCrystal lcd(12, 11, 5, 4, 3, 2);

  byte w[] = {
    B01010,
    B10101,
    B10101,
    B10001,
    B10001,
    B10001,
    B10001,
    B10001
  };

  byte a[] = {
    B11110,
    B10001,
    B11110,
    B10000,
    B01110,
    B00000,
    B00000,
    B00000
  };

  byte t[] = {
    B01100,
    B10010,
    B00010,
    B00010,
    B00111,
    B00010,
    B00010,
    B00000
  };

  byte e[] = {
    B01110,
    B00001,
    B11111,
    B10001,
    B01110,
    B00000,
    B00000,
    B00000
  };

  byte r[] = {
    B00001,
    B00001,
    B00001,
    B10011,
    B01101,
    B00000,
    B00000,
    B00000
  };

  byte dry[] = {
    B00000,
    B01110,
    B11111,
    B10001,
    B10001,
    B01010,
    B00100,
    B00000
  };

  byte ok[] = {
    B00000,
    B01110,
    B11111,
    B11111,
    B10001,
    B01010,
    B00100,
    B00000
  };

  byte wet[] = {
    B00000,
    B01110,
    B11111,
    B11111,
    B11111,
    B01110,
    B00100,
    B00000
  };

  void setup() {
    // put your setup code here, to run once:
    pinMode(pir, INPUT);   
    Serial.begin (9600);
    lcd.begin(20, 4);
    lcd.createChar(0, w);
    lcd.createChar(1, a);
    lcd.createChar(2, t);
    lcd.createChar(3, e);
    lcd.createChar(4, r);
    lcd.createChar(5, dry);
    lcd.createChar(6, ok);
    lcd.createChar(7, wet);
    
    lcd.home();

  }

  void loop() {
    // put your main code here, to run repeatedly:
    data = digitalRead(pir);
    Serial.println(data);  
   
    if (data == HIGH)  
    {
    lcd.setCursor(7,1);
    lcd.print("IH");
    delay(2000);
    lcd.clear();
      
    
    
    moistureSoil = analogRead (A0);
    Serial.println (moistureSoil);
    if ( moistureSoil < Wet ) { // If sensor is less than Wet 
      Serial.println("Greater than71% : Overwatering, enough water");
      lcd.setCursor(12, 2);
      lcd.write((byte)0);
      lcd.setCursor(11, 2);
      lcd.write((byte)1);
      lcd.setCursor(10, 2);
      lcd.write((byte)2);
      lcd.setCursor(9, 2);
      lcd.write((byte)3);
      lcd.setCursor(8, 2);
      lcd.write((byte)4);
      lcd.setCursor(7, 2);
      lcd.write((byte)7);
      delay (3000);
      lcd.clear();
      
    } else if( Dry > moistureSoil){ /// If sensor is greater than Wet and less than Dry (semidry)
      //moist    
      Serial.println("Between 31% to 70% : Just right");
      lcd.setCursor(12, 2);
      lcd.write((byte)0);
      lcd.setCursor(11, 2);
      lcd.write((byte)1);
      lcd.setCursor(10, 2);
      lcd.write((byte)2);
      lcd.setCursor(9, 2);
      lcd.write((byte)3);
      lcd.setCursor(8, 2);
      lcd.write((byte)4);
      lcd.setCursor(7, 2);
      lcd.write((byte)6);
      delay (3000);
      lcd.clear();
      
    }
    else  if( moistureSoil > Dry){ /// If sensor is greater than Wet and greater than dry 
      //water   
      Serial.println("Between 0% to 30% : Thirsty, add water");
      lcd.setCursor(12, 2);
      lcd.write((byte)0);
      lcd.setCursor(11, 2);
      lcd.write((byte)1);
      lcd.setCursor(10, 2);
      lcd.write((byte)2);
      lcd.setCursor(9, 2);
      lcd.write((byte)3);
      lcd.setCursor(8, 2);
     ...

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• Soil humidity indicators

  Nicole Sahagún • 09/10/2021 at 21:12 • 0 comments

  The screen shows the humidity of the water through three different icons: 

  This one indicates that the soil is low on water and you should water your plant. 

  --

  This one indicates that the soil humidity is just right. 

  --

  This one shows that the soil is overwatered and you should not water plant until it's on the first icon again.

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