Author Archives: e8johan

Drawing Waveforms

Posted on March 5, 2012 by e8johan

The Wavedrom tool is an HTML5 based tool for creating timing diagrams. It takes a basic JSON definition as input and produces an SVG waveform as result. To learn more, visit the tutorial, or go directly to the on-line editor. … Continue reading →

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Silent – Because Things are Going Great

Posted on February 27, 2012 by e8johan

I just wanted to tell you that the reason for the thin stream of posts recently. It is because I have a lot to do at work. Why is that, you ask? Because things are going great! I will focus … Continue reading →

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Plotting Electronically

Posted on February 20, 2012 by e8johan

For just a few Euros, a basic plotting robot can be constructed. Based on two servos, an Arduino and a pen, it is hard to build a more simple construction than this. From the video, you can see that cheap … Continue reading →

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Dance to the Beat

Posted on February 17, 2012 by e8johan

Tap to the beat of your favorite song on the switch, and the Arduino will learn and follow. As soon as the beats-per-minute has been calculated, a LED-array will start to animate to the beat. All this is implemented in … Continue reading →

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Japan Edition

Posted on February 15, 2012 by e8johan

Since I’m in Osaka today, there will be no Wednesday update. I’d just like to take this opportunity to show the wiring involved in charging my phone. The green wire at the bottom of the image is the grounding….

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Slot Car Racing

Posted on February 13, 2012 by e8johan

Racing slot cars can be fun, but knowing who’s fastest when requires precision measurement equipment. Enter, an Arduino-based lap timer. The timer detects the cars using an infrared beam and records the lap time. For each track, the best lap … Continue reading →

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Mini-segway using Arduino

Posted on February 10, 2012 by e8johan

Using a small Arduino and a couple of sensors, a segway-like, self-balancing robot can be constructed. The most interesting part of the project is not the construction, but the utilities developed in the project. Using the Arduino2Lego library, Lego NXT … Continue reading →

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Arduino – Toolchain

Posted on February 8, 2012 by e8johan

Getting started with the Arduino toolchain is not hard. This week, we will look at the development environment, some tips and tricks for Ubuntu users and, as the grand finale, we will look at working with the Arduino using only … Continue reading →

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Sanguino

Posted on February 6, 2012 by e8johan

The Sanguino board is a Arduino-derivate offering a more powerful CPU, more pins and more FLASH. All this, while being compatible with existing Arduino software. It is not physically compatible, so shields will not fit. The core of the Sanguino … Continue reading →

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Arduino Pong

Posted on February 3, 2012 by e8johan

The Arduino is a highly versitile platform, and as such, it also supports Pong. Using three resistors, the sync and light values needed by a TV can be generated. According to the author, Alistair Parker, the Arduino can generate 100-105 … Continue reading →

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