Yearly Archives: 2013

MaxThermo: temperature measurements for your projects

The MaxThermo library has just been released under the LGPL! If you have a project that needs to know the weather (or at least the temperature, anyhow), then a thermocouple will come in very handy. Thermocouples are pretty sweet temperature sensors that fit into electronics naturally as they leverage the thermoelectric effect: conductors which are…

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ACID released
ACID released

Announcing the release of a new hardware project :) A.C.I.D. (the Aural Colour Identification Device) lets you hear all the colours of the rainbow, by converting any light it receives into a unique combination of tones. It may be used as a handheld device or as an input module to other components by providing numerical…

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Ardweeny vs Sippino: Tiny Arduino-compatible comparison

I’m a big fan of Atmel AVR-based projects, Arduino stuff in particular.  Though I support the Arduino community by buying and using official parts, like the Uno, I also enjoy exploring spin-off projects such as the Digispark because they sometimes better address particular needs (e.g. space constraints). Also, I like to play. Here I’ll review…

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How to roll your own programmable Arduino/AVR board

Arduinos are perfect for development: you just plug them into a USB port and all the old hassles of dealing with AVR chips (crystals for clocking, hooking up comm lines, regulating power…) are handled for you.  But sometimes you need to roll your own custom solution. In real life–whether because of size, cost or power…

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No Ferric Chloride? No problem: Home-made etchant to the rescue!
No Ferric Chloride?  No problem: Home-made etchant to the rescue!

It was 11pm and I was on a roll.  Having prototyped my little circuit and transferred the mask onto a copper board, I was ready to create a nice permanent PCB version of the module. Far from perfect transfer, but enough to do the job.  The only problem?  No Ferric Chloride anywhere in sight.  …

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Controlling High Voltage Loads Using a Microcontroller

A while back, I had a project that required high-side switching of a set of pneumatic valves by a microcontroller. Because the loads were inductive (solenoids) and required a good deal more voltage than the microcontroller supply to activate (24V), I needed some kind of middleware between the Arduino and the valves.  I created a…

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VaRGB, RGB illumination programming library, released

VaRGB, a powerful and rather fun bit of code, has gone public and is now available as OSS. VaRGB is an RGB illumination programming library. You tell it how you want your lighting to behave, and it handles all the details of updating red/green/blue values at the right time for you. The library works on…

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How I Became a Programmer

I happened upon a questionnaire–How did you learn to program?–and chose to take a few minutes to fill it out. Doing so forced me to look back at the years I’ve spent coding, how I got started and the lessons I’ve learned along the way. I ended up spending a good while filling in my…

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TinyBrite Arduino library first release

As mentioned before, I love me some LEDs and have a particular fondness for the MegaBrites, powerful RGB modules that are easy to chain together.  The only issue I encountered in using the hardware was with SPI support or, more specifically, lack thereof.  On certain Arduino’s, like the very tiny Digispark, there is no hardware…

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Druid4Arduino Alpha Released

  Druid4Arduino–an automatic/configuration-free graphical user interface for Arduino projects–has just been released as free software (under the GPL), with binary programs available for Windows and Linux. This software enables you to provide a GUI for your device or project without having to spend any time programming windows and buttons.  You need only include the SerialUI…

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