Remote Monitoring with Arduino

Introduction: Remote monitoring is a crucial aspect of many electronic systems, allowing users to keep track of their devices or processes from a distance. In this article, we will explore the importance and utility of remote monitoring and provide an example project using Arduino. We will also include a list of components required for the project and provide code examples with detailed explanations.

Project: Our project aims to create a remote monitoring system using Arduino. The objective is to monitor the temperature and humidity levels in a greenhouse and send real-time data to a remote location for analysis and control.

Functionality:

1. Measure temperature and humidity using a DHT11 sensor.
2. Display the readings on an LCD display connected to the Arduino.
3. Send the data wirelessly to a remote server using an ESP8266 Wi-Fi module.
4. Store the data in a database for analysis and control.
5. Implement a web interface to visualize the data remotely.

List of Components:

1. Arduino Uno - 1x (Link: [insert link])

2. DHT11 Temperature and Humidity Sensor - 1x (Link: [insert link])

3. LCD Display (16x2) - 1x (Link: [insert link])

4. ESP8266 Wi-Fi Module - 1x (Link: [insert link])

5. Breadboard - 1x (Link: [insert link])

6. Jumper Wires - As required (Link: [insert link])

Code Examples: Example 1: Reading Temperature and Humidity

include <DHT.h>

define DHTPIN 2

define DHTTYPE DHT11

DHT dht(DHTPIN, DHTTYPE);

void setup() { Serial.begin(9600); dht.begin(); }

void loop() { float temperature = dht.readTemperature(); float humidity = dht.readHumidity();

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

delay(2000); }

Example 2: Sending Data to a Remote Server

include <ESP8266WiFi.h>

include <WiFiClient.h>

include <ESP8266WebServer.h>

const char ssid = "YourNetworkName"; const char password = "YourNetworkPassword";

ESP8266WebServer server(80);

void setup() { Serial.begin(115200); WiFi.begin(ssid, password);

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

Serial.println("Connected to WiFi");

server.on("/", handleRoot);

server.begin(); Serial.println("HTTP server started"); }

void loop() { server.handleClient(); }

void handleRoot() { server.send(200, "text/plain", "Hello from Arduino!"); }