Plant Watering System With The ESP8266 | Blynk App

Circuit Diagram :-

Implement Blynk App :-

https://blynk.cloud/dashboard/login

Step 1:

Fist create App And Login 

Step2 :

Create New Templates :-

 Step3 :

After Create Templates To Create Your Switch And Gauge 

Check your Virtual Pin Correctly 

Step4 : 

Find out BLYNK_AUTH_TOKEN and Put In Code

Step5 :

Now Your Application Ready To Used It 

Code :-

 

//Prateek //www.prateeks.in #include <LiquidCrystal_I2C.h> #define BLYNK_PRINT Serial #include <ESP8266WiFi.h> #include <BlynkSimpleEsp8266.h> #include <DHT.h> LiquidCrystal_I2C lcd(0x27, 16, 2); char auth[] = "uBTcT8j6LZTNPvcxkRg9Y"; char ssid[] = "JDE"; char pass[] = "par12345"; BlynkTimer timer; bool Relay = 0; DHT dht(D3, DHT22); #define sensor A0 #define waterPump D5 void setup() { Serial.begin(9600); pinMode(waterPump, OUTPUT); digitalWrite(waterPump, HIGH); lcd.begin(); lcd.backlight(); dht.begin(); Blynk.begin(auth, ssid, pass, "blynk.cloud", 80); lcd.setCursor(1, 0); lcd.print("System Loading"); for (int a = 0; a <= 15; a++) { lcd.setCursor(a, 1); lcd.print("."); delay(500); } lcd.clear(); timer.setInterval(100L, DHT22sensor); timer.setInterval(100L, soilMoistureSensor); } //Get the button value BLYNK_WRITE(V7) { Relay = param.asInt(); if (Relay == 1) { digitalWrite(waterPump, LOW); } else { digitalWrite(waterPump, HIGH); } } //Get the soil moisture values void soilMoistureSensor() { int value = analogRead(sensor); value = map(value, 0, 1024, 0, 100); value = (value - 100) * -1; Blynk.virtualWrite(V8, value); lcd.setCursor(0, 0); lcd.print("Moisture :"); lcd.print(value); lcd.print(" "); } void DHT22sensor() { float h = dht.readHumidity(); float t = dht.readTemperature(); if (isnan(h) || isnan(t)) { Serial.println("Failed to read from DHT sensor!"); return; } lcd.setCursor(0, 1); lcd.print("T:"); lcd.print(t); lcd.setCursor(8, 1); lcd.print("H:"); lcd.print(h); } void loop() { Blynk.run(); //Run the Blynk library timer.run(); //Run the Blynk timer }





How You Upload The Code 

Video :-