วัตถุประสงค์โครงงาน

1. ประหยัดเวลาในการรดน้ำต้นไม้

2. เพื่อการใช้งานที่สะดวกสบายมากขึ้น

3. ป้องกันการขาดน้ำของต้นไม้

CODE โปรแกรม

/*************************************************************

  This sketch shows how to read values from Virtual Pins

  App dashboard setup:

    Slider widget (0...100) on Virtual Pin V1

 *************************************************************/

/* Fill-in information from Blynk Device Info here */

//ของนักเรียน

#define BLYNK_TEMPLATE_ID           "TMPL6aXloiDhg"

#define BLYNK_TEMPLATE_NAME         "Plant watering system"

#define BLYNK_AUTH_TOKEN            "arzfWvP_FjpdmILgt_lwyfwJuxQYAxkX"

/* Comment this out to disable prints and save space */

#define BLYNK_PRINT Serial

//Define component pins

#define sensor A0

#define waterPump D3

bool Relay = 0;

#include <Wire.h>

#include <LiquidCrystal.h>

#include <LiquidCrystal_I2C.h>

#include <ESP8266WiFi.h>

#include <BlynkSimpleEsp8266.h>

// Your WiFi credentials.

// Set password to "" for open networks.

char ssid[] = "Iamcool";//Enter your WIFI name

char pass[] = "085jit123";//Enter your WIFI password

BlynkTimer timer;

//Initialize the LCD display

LiquidCrystal_I2C lcd(0x27, 16, 2);

// This function will be called every time Slider Widget

// in Blynk app writes values to the Virtual Pin V1

BLYNK_WRITE(V1)

{

  int Relay = param.asInt(); // assigning incoming value from pin V1 to a variable

  // process received value

  if (Relay == 1) {

    digitalWrite(waterPump, HIGH);

    lcd.setCursor(0, 1);

    lcd.print("Motor is ON ");

    Serial.print("Motor is ON");

  } else {

    digitalWrite(waterPump, LOW);

    lcd.setCursor(0, 1);

    lcd.print("Motor is OFF");

    Serial.print("Motor is OFF");

  }

}

void soilMoistureSensor()

{

  // You can send any value at any time.

  // Please don't send more that 10 values per second.

  int value = analogRead(sensor);

  Serial.println(value);

  value = map(value, 0, 1024, 0, 100);

  //value = (value - 100) * -1;

  Blynk.virtualWrite(V0, value);

  lcd.setCursor(0, 0);

  lcd.print("Moisture :");

  lcd.print(value);

  lcd.print(" ");

}

void setup()

{

  // Debug console

  Serial.begin(115200);

  pinMode(sensor, INPUT);

  pinMode(waterPump, OUTPUT);

  //lcd.init();

  lcd.begin();

  lcd.backlight();

  lcd.setCursor(1, 0);

  lcd.print("System Loading");

  Blynk.begin(BLYNK_AUTH_TOKEN, ssid, pass);

  // You can also specify server:

  //Blynk.begin(BLYNK_AUTH_TOKEN, ssid, pass, "blynk.cloud", 80);

  //Blynk.begin(BLYNK_AUTH_TOKEN, ssid, pass, IPAddress(192,168,1,100), 8080);

 for (int a = 0; a <= 15; a++) {

    lcd.setCursor(a, 1);

    lcd.print(".");

    delay(500);

  }

  lcd.clear();

  // Setup a function to be called every second

  timer.setInterval(1000L, soilMoistureSensor);

}

void loop()

{

  Blynk.run();

  timer.run(); // Initiates BlynkTimer

}

}