#define BLYNK_PRINT Serial #include <ESP8266WiFi.h> #include <BlynkSimpleEsp8266.h> #include <Wire.h> #include <LiquidCrystal_I2C.h> #include <DHT.h>

#define BLYNK_TEMPLATE_ID "TMPL3pjeJJhOA" #define BLYNK_TEMPLATE_NAME "Smart Plant" #define BLYNK_AUTH_TOKEN "yIISxEFGkN_Tke5qzdxgB81Ehn_fYFjH"

char ssid[] = "JIOFIBER-5G"; char pass[] = "123456789";

#define DHTPIN D4 // DHT Sensor Pin #define DHTTYPE DHT11 // DHT Type (DHT11 or DHT22) DHT dht(DHTPIN, DHTTYPE);

#define SOIL_MOISTURE_PIN A0 // Soil Moisture Pin #define RELAY_PIN D3 // Relay (Pump) Pin

LiquidCrystal_I2C lcd(0x27, 16, 2); // Set I2C LCD Address

BlynkTimer timer;

// Function to read sensor data and send it to Blynk void sendSensorData() { float temperature = dht.readTemperature(); float humidity = dht.readHumidity(); int soilMoisture = analogRead(SOIL_MOISTURE_PIN);

// Send data to Blynk App
Blynk.virtualWrite(V0, temperature);
Blynk.virtualWrite(V1, humidity);
Blynk.virtualWrite(V2, soilMoisture);

// Display on LCD
lcd.clear();
lcd.setCursor(0, 0);
lcd.print("Temp: ");
lcd.print(temperature);
lcd.print("C");

lcd.setCursor(0, 1);
lcd.print("Soil: ");
lcd.print(soilMoisture);

}

// Function to control water pump automatically void controlWaterPump() { int soilMoisture = analogRead(SOIL_MOISTURE_PIN); if (soilMoisture < 400) { // Adjust threshold as needed digitalWrite(RELAY_PIN, LOW); // Turn ON Pump Blynk.virtualWrite(V3, "Pump ON"); } else { digitalWrite(RELAY_PIN, HIGH); // Turn OFF Pump Blynk.virtualWrite(V3, "Pump OFF"); } }

void setup() { Serial.begin(115200); Blynk.begin(BLYNK_AUTH_TOKEN, ssid, pass);

pinMode(RELAY_PIN, OUTPUT);
digitalWrite(RELAY_PIN, HIGH); // Turn OFF pump initially

dht.begin();
lcd.begin(16, 2);
lcd.backlight();

// Run functions every few seconds
timer.setInterval(2000L, sendSensorData);
timer.setInterval(5000L, controlWaterPump);

}

void loop() { Blynk.run(); timer.run(); }