I have just built the AVR oscilloscope Clock kit from Dutchtronix. The kit was easy to build and for $25 it is quite a deal. I bought the kit to see how well the oscilloscope would work as a display device. This article presents the idea of using an oscilloscope as a graphics display for […]

Mayank shows us how to interface a microcontroller to the phone line. The tones you hear as you enter numbers on your phone can remotely control devices. Learn how to use these DTMF tones in your microcontroller projects.
This article was submitted by Mayank Magoo as part of the “Hobby parts for articles” program. Mayank received […]

Oscar Gonzalez gives us a simple tutorial for speed controlling a PC FAN and reading a LM35 temperature sensor with an Arduino microcontroller. He covers the use of an optocoupler, PWM (Pulse Width Modulation) and reading analog voltages with the Arduino. He even has a video showing the fan speed control in action.
This article was […]

You can build your own parallel port programmer to update your Arduino or play directly with AVR microcontrollers as described in a previous uCHobby post. But what if you don’t have a Parallel port? What if you prefer a kit with a real PCB or maybe something that works with USB, is quick and easy […]

After doing the reset mod to my Arduino Compatible Bare Bones Boards I wanted to update the firmware to get the full benefit of the Diecimila update. I followed the directions on the Arduino website but could not succeed. I sent emails and did web searches and still did not find the answer. Ultimately with […]

The Arduino team has created a fantastic product and shared it with the world. I thank them greatly and admire their efforts. The package they have developed is and will continue to be a great way for people to get started in microcontrollers. My hat is off to them for some very fine work. But […]

A new version of the Arduino board was released with a cool new feature. With help from Paul Badger of Modern Device Company and Brian Riley of the Freeduino project this article will show you how to modify the Arduino Compatible Bare Bones Board to make it compatible with the new Diecimila Arduino. No more […]

I noticed a few recent articles about ordering PCBs from Gold Phoenix of China and thought I would add to the discussion. I just got a set of boards from Gold Phoenix and they look great. My father (an RF Engineer) and I are working on a Arduino controlled Signal Generator. We did the design, […]

Michael Seppanen shows us how to use a Basic Stamp microcontroller combined with a Park Zone Stoplight, and a hacked Epson printer to make a pumpkin pop up automatically when a trick or treater comes to the door. A nice way to use your microcontroller talents to scare some kids!
This article was submitted by Michael […]