Category Archives: Electronics

Schematics

Posted on November 9, 2012 by e8johan

Over at www.electronicsproject.org you will find a broad selection of circuit schematics. Examples range for various amplifier circuits, power supplies, game circuits (remember the steady-hand-game) and more. Well worth a visit!

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Dead bugs

Posted on October 25, 2012 by e8johan

I did not know it, but soldering a circuit without a PCB is apparently called creating a “dead bug”. The ICs being soldered are placed on their backs, legs pointing upwards, like a dead bug. Over at the dangerous prototypes … Continue reading →

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Self-printed Retro Joystick

Posted on October 1, 2012 by e8johan

Over at Thingiverse, the Dutchman known as srepmub has published a great looking 3D printable retro joystick. The instructions contains printable parts, PCB and build instructions. As a later entry, he shows the results of two days (!) of polishing. … Continue reading →

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Electronics from Ebay

Posted on September 28, 2012 by e8johan

For the hobbyist, one great source of low cost electronic gizmos is ebay. There is a whole range of sellers, often based in Hong Kong, offering small mounted PCB for less than cost of the components bought in small volumes. … Continue reading →

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3D LED Matrix

Posted on March 30, 2012 by e8johan

Fredrik Petrini has posted a detailed build instruction for a 3D LED matrix. That is, a truly three dimensional display with 125 pixels.

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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.

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Arduino

Posted on February 1, 2012 by e8johan

The Arduino is one of the flag ship products of the open hardware movement. A simple, microcontroller based motherboard with a well defined pin-out has rendered a whole forest of add-on boards called shields. But the Arduino movement is not … Continue reading →

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Daruino

Posted on January 2, 2012 by e8johan

The Daruino is an open hardware project aiming to build an Arduino pin-compatible board with a Arm-based CPU. The smallest board is based on the LPC1102 from NXP. This will bring around 50MIPS to a $5 package. The standard board, … Continue reading →

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Soldering Guide

Posted on November 21, 2011 by e8johan

The EEVblog is a great resource if you are interested in electronics and making. Among all the video blog entries, there is a two part guide to soldering. A good place to get started from. Follow the links here to … Continue reading →

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DIY USB HID

Posted on November 14, 2011 by e8johan

The Teensy development board is an Arduino cousin. It is based on the ATMEGA from Atmel, has a real small physical size (18x31mm) and development tools for Windows, Linux and OS X.

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