I want to develop iot agriculture monitoring system using mit app

[Deepen]

#include <ESP8266WiFi.h>
#include <FirebaseESP8266.h>
#include <DHT.h>

#define FIREBASE_HOST ""
#define FIREBASE_AUTH ""
#define WIFI_SSID "Redmi9"
#define WIFI_PASSWORD "qwerty1234"
#define DHTPIN 2
#define DHTTYPE DHT11
#define SOIL_MOISTURE_PIN A0
#define PUMP_PIN D1
#define THRESHOLD 500

DHT dht(DHTPIN, DHTTYPE);
FirebaseData firebaseData;

void setup() {
  Serial.begin(9600);
  dht.begin();
  pinMode(SOIL_MOISTURE_PIN, INPUT);
  pinMode(PUMP_PIN, OUTPUT);
  digitalWrite(PUMP_PIN, LOW);

  WiFi.begin(WIFI_SSID, WIFI_PASSWORD);
  while (WiFi.status() != WL_CONNECTED) {
    delay(1000);
    Serial.println("Connecting to WiFi...");
  }

  Firebase.begin(FIREBASE_HOST, FIREBASE_AUTH);
}

void loop() {
  // Read control mode value from Firebase
  Firebase.getString(firebaseData, "/controlMode");
  String controlMode = firebaseData.stringData();

  // If control mode is set to "manual"
  if (controlMode == "manual") {
    // Read pump control value from Firebase
    Firebase.getString(firebaseData, "/pumpControl");
    String pumpControl = firebaseData.stringData();

    // Turn pump ON or OFF based on pump control value
    if (pumpControl == "ON") {
      digitalWrite(PUMP_PIN, HIGH);
      Firebase.setString(firebaseData, "/data4", "ON");
      Serial.println("Pump ON");
    } else {
      digitalWrite(PUMP_PIN, LOW);
      Firebase.setString(firebaseData, "/data4", "OFF");
      Serial.println("Pump OFF");
    }
  }

  // If control mode is set to "auto"
  else if (controlMode == "auto") {
    float temperature = dht.readTemperature();
    float humidity = dht.readHumidity();
    int soilMoisture = analogRead(SOIL_MOISTURE_PIN);

    if (isnan(temperature) || isnan(humidity)) {
      Serial.println("Failed to read from DHT sensor!");
      return;
    }

    Serial.print("Temperature: ");
    Serial.print(temperature);
    Serial.print(" °C, Humidity: ");
    Serial.print(humidity);
    Serial.print(" %, Soil Moisture: ");
    Serial.println(soilMoisture);

    // Send data to Firebase
    Firebase.setFloat(firebaseData, "/data1", temperature);
    Firebase.setFloat(firebaseData, "/data2", humidity);
    Firebase.setInt(firebaseData, "/data3", soilMoisture);

    // Control water pump
    if (soilMoisture < THRESHOLD) {
      digitalWrite(PUMP_PIN, HIGH);
      Firebase.setString(firebaseData, "/data4", "ON");
      Serial.println("Pump ON");
    } else {
      digitalWrite(PUMP_PIN, LOW);
      Firebase.setString(firebaseData, "/data4", "OFF");
      Serial.println("Pump OFF");
    }
  }

  // If control mode is not set to "manual" or "auto"
  else {
    Serial.println("Invalid control mode!");
  }
}

[Patryk_F]

Why is this in the Extension development section? Are you building any extension?

[Juan_Antonio]

Here several examples of FireBaseDB.

ESP8266. FirebaseDB. Send. Receive. IDE Arduino

In this tutorial we saw how we could communicate ESP32, Firebase realtime and an application... https://community.appinventor.mit.edu/t/esp32-firebasedb-send-receive-ide-arduino/10747 [firebasedb24b] We are going to adapt those codes to ESP8266. We can send data from the App to Firebase and display it in the Serial Monitor. The ESP8266 code generates two random numbers every 5 seconds, sends them to Firebase and is automatically received by the app. We will use this library... [firebase…

ESP32. FirebaseDB. Send. Receive. IDE Arduino

Hello friends, 0.- Board D1 R32 ESP32. [esp322b] [comparativa] Search images: D1 R32 ESP32 I have done several tutorials with the ESP32: ESP32 BLE. ESP32 WiFi. ESP32 MQTT. In this tutorial we are going to see how to send and receive data to/from FireBaseDB with App Inventor and ESP32.

[ABG]

Look for the Firebase console, which has a place where you can see the Firebase DB contents online.

It is useful for debugging.