LED

DIY LED Chaser using 74HC595 Shift Register and 555 Timer IC Adding a Futuristic Twist to your Decor with a Circular LED Chaser

Have you ever wanted to add some cool lighting effects to your electronic circuits or spice up your home decor with a…

LED ON and OFF Circuit using 555 Timer IC Building a LED Dimmer Circuit using 555 Timer IC and BC557 Transistor

LEDs are commonly used in electronic circuits as they consume less power, are easy to use, and have a long lifespan. In…

Simple Audio Level Indicator Simple Audio Level Indicator using LM3915

LED VU meters are popular devices, especially for those people who love music. With this device, you can easily look at…

RGB LED Lighting Circuit using Transistor Build your own Christmas Tree using simple RGB LEDs and Trasnsistors

In this short tutorial, we will show you how you can build yourself a transistor-driven color-changing RGB LED lights.…

ESP32 Development Board Tutorial ESP32 PWM Tutorial: Controlling the Brightness of LED

Pulse Width Modulation (PWM) is a technique that varies the width of a pulse while keeping the wave frequency constant. The PWM…

Transformerless LED Driver Circuit for Reliable Low Cost LED Bulb Designs Transformerless LED Driver Circuit for Reliable Low Cost LED Bulb Designs

LED bulbs are said to be 80% more efficient than other conventional lighting options like fluorescent and incandescent bulbs.…

Mechanically powered Emergency Flashlight Mechanically powered Emergency Flashlight

Flashlight or Torch is very useful in emergency situations like power failure. These flashlights are battery-operated, and we…

Charlieplexing Arduino- Controlling 12 LED with 4 GPIO Pins Charlieplexing Arduino - Controlling 12 LEDs with 4 GPIO Pins

Charlieplexing is a technique of controlling many LEDs using a few I/O pins. Charlieplexing is same as multiplexing, but it…

Interfacing HC-05 Bluetooth Module with MSP430 Launchpad to Control an LED Interfacing HC-05 Bluetooth Module with MSP430 Launchpad to control an LED

While a lot of wireless technologies have been introduced in past decade, but Bluetooth is still the most popular tech for…

How to use HM-10 BLE Module with Arduino to control an LED using Android App How to Use HM-10 BLE Module with Arduino to Control an LED using Android App

Bluetooth is one of the most popular and easy to use wireless technology. Over the few years there have been many upgrades of…