You will find this LED resistance calculator very useful for calculating the exact value, power, dissipation of a resistor for the selected LED. This tool will also allow you to calculate the resistor for many LEDs in series by assessing its total forward voltage drop value. The software will also enable you to calculate resistors […]
Search Results for: led
3D Moon-Sphere LED Driver with Charger and Dimmer
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 […]
Joystick Controlled 2.4 GHz RC Car Using Arduino
In this post we are going to construct a car robot which can be controlled using a joystick on 2.4 GHz wireless communication link. The proposed project is not only made as a RC car, but you can add your projects such as surveillance camera etc. on the car. By Girish Radhakrishnan Overview The project […]
Mobile Phone Controlled Robot Car Using DTMF Module
In this project we are going to control a manual robot through our cellphone using DTMF module and Arduino. By: Ankit Negi, Kanishk Godiyal and Navneet Singh sajwan INTRODUCTION In this project two cell phones, one for calling and one for receiving the call are used. The phone receiving the call is connected to the […]
LED
This page presents a huge collection of LED related circuit links, meticulously designed and compiled by me. Simple LED Circuit Projects for all Here we exclusively deal with the various LED driver circuits, consisting of articles explaining how to make LED drivers for high watt LEDs through SMPS concepts and also using capacitive power supplies. […]
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 […]
110V, 14V, 5V SMPS – Detailed Diagrams with Illustrations
In this post we learn how to apply the IC L6565 for making a compact multi purpose 110V, 14V, 5V SMPS circuit using minimum number of external components. Implementing quasi-resonant ZVS flyback The IC L6565 from ST Microelectronics is designed as a current-mode primary controller chip, to specifically suit quasi-resonant ZVS flyback converter applications. The quasi-resonant […]
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 […]
LiFi Internet Transmitter – USB Signal Transfer through LED
In this post we learn how to transmit Internet data through LiFi using a class D amplifier as the transmitter and an ordinary audio amplifier circuit as the receiver. How Li-Fi Concept Works If you are wondering how a LiFi concept could be used for transmitting USB data, this article will provide with all the […]
Simple Solar LED Highway Lighting System
The discussed circuit for a simple solar LED street light system is specifically designed for the new hobbyist who can build it simply by referring to the pictorial schematic presented here. Due to its straightforward and relatively cheaper design the system can be suitably used for village street lighting or in other similar remote areas, […]
Stepper Motors – Detailed Step by Step Explanation
In this post we are going to learn about stepper motor. We will be exploring what stepper motor is, its fundamental working mechanism, types of stepper motor, stepping modes, and lastly its advantages and disadvantages. By Girish Radhakrishnan What is stepper motor? Stepper motor is brushless motor; its rotating shaft (rotor) completes one rotation with […]
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 […]