A Charlieplexed Knight Rider Light




Features

Low cost and low part count
Four different flashing patterns, easily modifyable
Speed control and pattern switching via pot

Introduction

This is nothing special, really. "Knight Rider lights" or "Larson Scanners" seem to be very popular microcontroller projects. I guess they are the next step right after the blinking LED (a.k.a. the "Hello World" program for microcontrollers).

I

Comments

Post a Comment

Popular posts from this blog

Earthing as Per Indian Standard IS 3043:1987

Image
Earthing is very important part in every electrical system below are earthing pits design which are self explanatory:- Earthing with copper plate:- GI earthing system:- Pipe earthing:- Above Pics describe how to design earthing pits in electrical systems as per Indian Standard IS 3043:1987
Read more

Low-Cost High-Speed Photography - Part 1

Find this and other photos HERE. Project Features Produces white light flashes for high-speed photography and multiple exposures High flexibility / reconfigurability (menu controlled) Low cost (no flash unit needed, mostly cheap parts) Simple hardware No recharging time as for conventional flash lights Introduction Some of the ideas I have take years until I actually put them into practice
Read more

Electrical Contactors AC1, AC2, AC3, AC4

Image
Electrical Contactors Utilization Categories:- Electrical Contactors are categorized according to the current making and breaking values for contactors. This will depend on the following: The type of load to be controlled (Inductive load, Lighting load, Motor load, Resistive load, Capacitive load) The operating cycle conditions. For any applications there are different contactors available depending upon load application which every electrical engineer you must know before designing any systems.  You may have often seen the ratings described on contactor name plate depicting various parameters. One of most important to be considered are as described in this article.  AC1 - These type of contactors are used for Non-inductive or slightly inductive loads they are used for Heaters which are resistive loads. AC2 - These type of contactors are used in Starting of slip-ring motors AC3 – They are particularly used for Starting of squirrel-cage motors and sw...
Read more