In this post we learn how to build a homemade LED driver with dimmer and charger circuit for illuminating a 3D moon from a 5V USB source. The idea was requested by Mr. John Sweden. Specifications and Features I’ve been a visitor to your website for many years and wonder if I may ask your […]
DIY LED Projects
200, 600 LED String Circuit on Mains 220V
The post details the construction of a 200 to 600 LED project, using series parallel LEDs for creating an alphabetical display sign board. The idea was requested by Mr. Mubarak Idris. Let’s Make a Blinking 200 String LED Circuit I need a blinking LED light that show”WELCOME TO” blink and then “COLLEGE OF ENGINEERING” base […]
7 Watt LED Driver SMPS – Current Controlled
The presented 7 watt LED driver circuit is an SMPS based non-isolated, transformerless circuit which ensures a safe current controlled output for the attached LED, it is very affordable to build without involving complex transformer winding. Constant Current and Load Regulation Objective The aim behind the design of the IC TPS92310 (from TEXAS INSTRUMENTS) is […]
Greatest Myths about LED Lighting
LED lighting products are relatively new for the commercial market and as with any new product, they have to deal with doubt and negative comments from consumers’ side. There just is a lot of false information about LED lights that creates many misconceptions about them. So here are the greatest myths about LED lamps and […]
Controlling LED Strip Light ON/OFF and Brightness with any Remote Control
In this post we are going to construct LED strip controller circuit using Arduino, which can turn ON/OFF and decrease/increase brightness of LEDs using ordinary IR (Infrared) remote. By Girish Radhakrishnan What is LED Strip Light? (For noobs) If you are not familiar with LED strip lights, let’s understand what it is. LED strips (sometimes […]
Learn to Make a Foot Activated Staircase Light
The post explains a simple foot activated staircase light circuit comprising of a chain of LEDs which activate sequentially in response to each climbed step. The idea was requested by Mr. Dwayne. Staircase Light using Piezo Sensors I’m hoping you can help me. I am hoping to make a LED light up staircase. Using LED […]
“WELCOME” Chasing LED Display
The post explains how to make a chasing “WELCOME” display circuit sign board, which illuminates each alphabet sequentially until all the 7 alphabets are lit and then the whole display shuts off, the cycle continues permanently as long as the circuit is powered. Overview I have already discussed a similar concept explaining a bar graph […]
Sunrise Sunset Simulator LED
In this post we learn how to make a sunrise/sunset simulator circuit using LEDs and just a couple of BJTs. The idea was requested by Mr. Jerry Artificial Dawn/Dusk Light Effect Generator Apparently natural daylight is best for humans in regulating our circadian rhythm. I would like to build an LED lighting circuit to control […]
Beacon Level Indicator for Combine Harvester Grain Tanks
The post explains a beacon indicator circuit for combine harvester grain tanks. The idea was requested by Mr. John Bosch. Rotating Beacon Lights for Grain Tanks I would like to retrofit the rotating beacon grain tank level indicator system shown below, to my older combine harvester. The particular part of the system I want to […]
Make this LED Bulb Dimmer Circuit
In this article we learn how to make a dimmer circuit for LEDs bulbs and LED tubes which are intended to be operated with mains 220V or 120V. How LED Bulbs Work We know that our ceiling fans and incandescent bulbs can be easily controlled using triac dimmer switches, and we are quite used to […]
Illuminating an LED using Wireless Power Transmission
In this post we learn how to illuminate an LED using wireless power transmission. By Girish Radhakrishnan Wireless Power Technology Wireless power is an emerging technology in this present world. But the stunning fact is that it’s a century old concept. This concept was emerged by Nikola Tesla. Charging batteries through wireless power […]
How to make simple a LI-FI (Light Fidelity) Circuit
LI-FI is buzzing around the Internet since past few years; recently LI-FI is gained more popularity around the internet and developers. LI-FI stands for Light Fidelity which was coined by Harald Hass. By: Girish Radhakrishnan Circuit Objective The objective of LI-FI is transfer data through visible light. Since the bandwidth of visible light is 10,000 […]
LED Meteor Shower, Rain Tube
In this post we learn how to design an intriguing LED light effect that generates a collapsing metor shower like appearance. The idea was requetsed by Mr.Pinto Mondal. Technical Specifications I am very grateful of your work. Sir I want to make a circuit,which available in the market like 1 or 1.5ft long led light […]