Tech Marinade
Uncovering Hidden Innovation in DIY Electronics
The Kyub Is A Literal Music Box For Three-Dimensional Jamming
by Kyle Patrick Cayabyab ▪ 4.3.2014 News

6efc73788c209b7872a2921e903e62b9_largeMusic based projects and products bring an eclectic flavor to the Maker community. Using a marriage of creativity and technology yields some of the most unique devices imaginable. One of these devices is a literal “music box” that looks like a wide-eyed dice and adds a quirky flair to MIDI keyboards. The Kyub is an open source feather touch MIDI keyboard that makes use of capacitive sensing and an accelerometer to make music creation more active and dynamic.

Started by Keith Baxter, who has also developed a popular servoelectric guitar, the Kyub features 11 fully programmable feather touch keypads, a three axis 3G accelerometer, a Teensy AVR microcontroller with native USB MIDI support, and three open source programs for experimentation and playing. The Kyub is also compatible with many software synthesizers including Propellerhead Reason Essentials, and iPad based synthesizers. For the past four months, Keith has been working with Petyr Stretz, a hacker and electronic music expert, and Peggy Brown, an industrial designer, to create an innovative product with a slick design.

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Teensy Takes Big Step Forward With The Release Of 3.1
by Kyle Patrick Cayabyab ▪ 12.12.2013 News


The USB microcontroller development system by PJRC, implemented in projects such as a wall of light, a MIDI controller, and even a giant Penrose Triangle underwent a recent evolution into it’s 3.1 form. The aptly named Teensy, requiring only a standard “Mini-B” USB cable and a PC or Macintosh with a USB port, beefed up it’s stats compared to the Teensy 3.0 for less than a dollar increase in price.

The Teensy 3.1 is very similar to 3.0 physically, sporting the same size, shape, and pinout. It also supports code written for Teensy 3.0 and is supported on Arduino IDE with Teensyduino, making the upgrade simple to integrate into your projects. However, some slight adjustments have been made beyond the technical improvements of this update. Compared to the Teensy 3.0 tin plating finish, the Teensy 3.1 is dressed in gold for easier soldering. The Teensy also hosts a myriad of new features.

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Introduction to Color Sensors – ADJD-S311 (Part 1)
by Ryan Sailor ▪ 9.20.2013 Learn

Color sensors are a great way to connect your project to its environment. Maybe you want to make some mood lighting that complements the color on the television. Or you need a sensor to detect color variations in a product. You could even configure a color sensor to estimate your pulse (through the science of pulse oximetry)!

You might just want to connect a color sensor to an RGB LED and call it a day. A couple months ago, I did exactly that. Certainly this is not the most inspiring use of a color sensor, but it is a great warm-up to more complicated constructions. In this post I share, step by step, how to set up and communicate with the AJDJ-S311 color sensor.


I used an AJDJ-S311 pre-mounted onto a breakout board by the good people at Sparkfun. Unless you want to bother with solder paste, masks, and reflow, I advise getting the breakout board! I want to make this How To very accessible to all levels of tinkerers. That said, I will not include an Arduino tutorial, so “Arduino level” programming knowledge is required. If you need a refresher, check out this tutorial . Once you know how to program “blink.ino”, you are ready to go. Let’s get started.

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