Project – Musical Doorbell
Let’s create a simple music doorbell using a button and a passive buzzer! When a guest presses the doorbell button, the music will play. Wiring Instructions: With this…
1 Min Read
Buzzer
A buzzer is a small electronic device that produces sound when powered. It is commonly used in alarms, notifications, and indicators in various electronic projects. There are two…
1 Min Read
Project – Passive Buzzer
A passive buzzer requires an external signal to create sound. It does not have a built-in oscillator, so it relies on a square wave signal or frequency input…
1 Min Read
Project – Active Buzzer
An active buzzer is a self-contained unit that generates sound when power is supplied to it. It has a built-in oscillator, so you only need to provide a…
2 Min Read
Project – Motion Detection
Overview In this project, we’ll build a PIR motion sensor system with an ESP32. When motion is detected, the LED will turn on. Since the ESP32 operates at…
2 Min Read
PIR Motion Sensor
A PIR (Passive Infrared) sensor is an electronic device that detects motion by measuring infrared (IR) radiation emitted by objects in its field of view. It is like…
2 Min Read
Project – Distance Measurer
In this project, we will build a distance measurer that can measure distances up to 4 meters using the HC-SR04 Ultrasonic Sensor and ESP32. Wiring Diagram Arduino Code…
2 Min Read
Ultrasonic Sensor HC-SR04
Overview An ultrasonic sensor is an electronic device used to measure distance or detect objects by emitting ultrasonic sound waves and analyzing the echoes that return. These sensors…
4 Min Read
Project – Toggle LED
“Hello, World!” is often the first step into programming on a PC, a simple tradition that welcomes us to the digital realm. But in the world of microcontrollers,…