Build a USB device with PIC 18F4550

If you are looking to get your feet wet with PIC microcontroller USB functionality, this article by Sylvain Ferrand is a great place to start. To keep on top of developments in this area I would suggest subscribing to this magazine, what will it cost you? Nothing, it’s free! “PIC 18F4550 and 18F2550 are powerful microcontrollers including a full-speed USB V2.0 compliant interface . With these MCU it’s very easy

Soap Mouse

  The Soap mouse looks very interesting. I wonder how long before it is a commercial product? “Soap is a pointing device based on hardware found in a mouse, yet works in mid-air. Soap consists of an optical sensor device moving freely inside a hull made of fabric. As the user applies pressure from the outside, the optical sensor moves independent from the hull. The optical sensor perceives this relative

Dancing LED Lights

Here is a simple circuit to make some dancing LED lights. “Here is a simple circuit which can be used for decoration purposes or as an indicator. Flashing or dancing speed of LEDs can be adjusted and various dancing patterns of lights can be formed. The circuit consists of two astable multivibrators. One multivibrator is formed by transistors T1 and T2 while the other astable multivibrator is formed by T3

Hemi Powered Trike

Remember the Big Wheel bikes? Well forget all about those… this Hemi Powered Trike may look like the Big Wheel we knew as kids but that is where the similarities end. 🙂 “It’s no surprise that the competition’s winning design appeals to the big kid in all of us. While Canadian Marcus Braun has even decked his Big-Wheel-style custom trike out with handle bar tassels and garish Early Learning Centre

Atmel AVR POV

  Trimbitas Sorin has created a simple POV (Persistence of vision) kit using AVR microcontroller. If you want to build your own there is code and a schematic available on his site. “This is my first serious(the first one was a one LED blinker) AVR project 🙂 I searched the Internet for a cool looking and easy to build project with ATTiny2313 and I end up on this page,it was

Selecting a Serial Bus

There is a good article about selecting the right microcontroller serial bus in this months Electronic Products magazine. Many people are like me, they use what they know. This article has a good explanation of the differences so that we can make a better informed decision for the next product. “At the heart of most of today’s advanced electronic products is a microcontroller that communicates with one or more peripheral

LEGO Full Auto Book Scanner

  The best inventions are ones that eliminate repetition, this automatic book scanner does just that. Believe it or not it was constructed using LEGO. ” After the invention of hyperpaper, I began to scan my books. Soon I found out that what I expected was true — It was awesomely BOREING! If this drudgery were to be automated! Scanning a book involves picking up the book from the scanner