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 Read More
Search Results for: led
3D Moon-Sphere LED Driver with Charger and Dimmer Circuit
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. LED Driver Circuit with Charger/Dimmer The Request: Dear Swag, I’ve been a visitor to your website for many years and Read More
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 toy car, but you can add your projects such as surveillance camera etc. on the car. By Girish Radhakrishnan Overview The project Read More
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 Read More
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. Read More
200, 600 LED Project 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 hello sir please if you don’t mind I need your assistance on blinking LED light that Read More
7 Watt LED Driver SMPS Circuit – Transformerless, 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 Read More
Simple Solar LED Street Light System using LM338 IC
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, Read More
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 Read More