ESP32 + Passive Buzzer + 16×2 I2C LCD | Buzzer ON/OFF Status Display | Arduino IDE*

Welcome to Amaramam Electronics — Build. Learn. Innovate! 🔧⚡ In this video, we demonstrate how to interface a *passive buzzer and a 16×2 I2C LCD with the ESP32-WROOM-32 development board*. The ESP32 generates a 2 kHz frequency to activate the passive buzzer for 5 seconds and turns it OFF for the next 5 seconds. The LCD displays the buzzer status in real time, showing BUZZER ON and BUZZER OFF according to its operation. 🔧 Components Required: ESP32-WROOM-32 development board Passive buzzer 16×2 I2C LCD display Breadboard Jumper wires USB data cable 🔌 Circuit Connections: Passive Buzzer: Positive (+) → ESP32 GPIO 25 Negative (−) → ESP32 GND 16×2 I2C LCD: VCC → Compatible power supply GND → ESP32 GND SDA → GPIO 21 SCL → GPIO 22 💻 Software Required: Arduino IDE ESP32 Board Package LiquidCrystal_I2C Library ⚙️ Project Working: 1. The ESP32 generates a 2 kHz frequency signal. 2. The passive buzzer produces sound for 5 seconds. 3. The LCD displays "BUZZER ON". 4. After 5 seconds, the buzzer turns OFF. 5. The LCD displays "BUZZER OFF" for the next 5 seconds. 6. The ON/OFF cycle repeats continuously. 🎯 What You Will Learn: Interfacing a passive buzzer with ESP32 Connecting a 16×2 I2C LCD Generating sound using PWM frequency control Displaying real-time output status Programming ESP32 using Arduino IDE 📌 Applications: Security alarm systems Warning and alert systems Smart home automation Industrial alert indicators Embedded systems projects 👍 If you find this project useful, Like, Share, and Subscribe to our channel for more exciting electronics, Arduino, ESP32, and IoT tutorials! 🌐 Connect with Amaramam Electronics: Website: https://amaramamelectronics.com/ YouTube:    / @amaramamelectronics   Instagram:   / amaramamelectronics   LinkedIn:   / 109941295   WhatsApp Channel: https://whatsapp.com/channel/0029VbB5... Amaramam Electronics — Build. Learn. Innovate! 🚀 #ESP32 #PassiveBuzzer #I2CLCD #ESP32Projects #BuzzerControl #ArduinoIDE #EmbeddedSystems #IoTProjects #ElectronicsProjects #AmaramamElectronics