Published January 11, 2024

ESP32 Analog Read

In this Article, we learn about how to make Wireless ESP32 Analog Sensor Monitoring System with LCD Display and Web Interface.

ExpertFull instructions provided2 hours352

Things used in this project

Hardware components

Espressif ESP32

Adafruit RGB Backlight LCD - 16x2

Breadboard (generic)

Rotary potentiometer (generic)

USB-A to Mini-USB Cable

Jumper wires (generic)

Software apps and online services

Arduino IDE

Story

Wireless ESP32 Analog Sensor Monitoring System with LCD Display and Web Interface

In this Article, we learn about how to make Wireless ESP32 Analog Sensor Monitoring System with LCD Display and Web Interface.

Let’s dive into

Components Require:

1. ESP32

2. I2C LCD

3. Breadboard

4. Potentiometer

5. USB Cable

6. Jumper wires

How it works:

This system integrates an ESP32 microcontroller with an analog sensor, an LCD display, and a web server. The ESP32 continuously reads the sensor, updates the LCD display, and provides real-time sensor data through a web interface that users can access from a web browser.

Usages:

1. Environmental Monitoring

2. Weather Station

3. Research and Development

4. Security Systems

5. Custom IoT Projects

Wireless ESP32 Analog Sensor Monitoring System

Code

Untitled file

#include <Wire.h>
#include <LiquidCrystal_I2C.h>
#include <WiFi.h>
#include <WebServer.h>

const char* ssid = "Microsolutions";
const char* password = "@1yahoo.com";

WebServer server(80);

const int analogPin = 34;
LiquidCrystal_I2C lcd(0x27, 16, 2); // Set the LCD I2C address

void setup() {
  Serial.begin(115200);
  lcd.init(); // Initialize the LCD
  lcd.backlight();

  WiFi.begin(ssid, password);
  while (WiFi.status() != WL_CONNECTED) {
    delay(1000);
    Serial.println("Connecting to WiFi...");
  }
  Serial.println("Connected to WiFi");
  Serial.print("IP Address: ");
  Serial.println(WiFi.localIP());

  server.on("/", HTTP_GET, []() {
    server.send(200, "text/html", getHTML());
  });
  server.begin();
}

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

String getHTML() {
  int analogValue = analogRead(analogPin);
  String html = "<html><head></head><body>";
  html += "<h1>ESP32 Analog Sensor</h1>";
  html += "<p>Analog Value: " + String(analogValue) + "</p>";
  html += "</body></html>";
  return html;
}

void displayAnalogValue() {
  int analogValue = analogRead(analogPin);
  lcd.clear();
  lcd.setCursor(0, 0);
  lcd.print("Analog Value:");
  lcd.setCursor(0, 1);
  lcd.print(analogValue);
  delay(1000); // Update the display every second
}

ESP32 Analog Read

Things used in this project

Hardware components

Software apps and online services

Story

Components Require:

How it works:

Usages:

Schematics

screenshot_(218)_2OEFVNNWoI.png

Code

Untitled file

Credits

JACK

Comments

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ESP32 Analog Read

ESP32 Analog Read

Things used in this project

Hardware components

Software apps and online services

Story

Components Require:

How it works:

Usages:

Schematics

screenshot_(218)_2OEFVNNWoI.png

Code

Untitled file

Credits

JACK

Comments

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