Author Archives: e8johan

Portable Electronics Lab

Posted on March 23, 2012 by e8johan

Built from an old laptop, sk7ca‘s portable electronics lab is quite impressive. It contains a generous breadboard area, an LCD display, a keypad, various inputs, outputs, sensors , gizmos and the now ubiquitous Arduino. What the video for a guided tour. Built … Continue reading →

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Searduino

Posted on March 21, 2012 by e8johan

When developing Arduino software, it is not always ideal having to rely on the cycle of life – code, compile, upload, test, alter, compile, upload, test, alter, comp… The Searduino project (Savannah page) provides an, albeit limited, simulation of an Arduino system. The … Continue reading →

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3D Printable Quadcopter

Posted on March 16, 2012 by e8johan

Thingiverse is a great site that we have mentioned before. Yesterday, the user swepet uploaded PL2Q Hugin. this is the second iteration of his 3D printable quadcopter design. Print, solder and fly. Finally a project where the sky really is … Continue reading →

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Prototype Sheild for the Arduino

Posted on March 7, 2012 by e8johan

I just bought and soldered up a prototype shield for the Arduino. To be more precise, the Proto Shield from lawicel. Mounting the pin headers  is a quick job. Then, two pins need to be cut, since they interfere with one of … Continue reading →

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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…. Since … Continue reading →

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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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