AXiS-49 teardown

March 31, 2009 By 5 Comments

cthruteardown

We touched on harmonic table MIDI controllers when [aris] was building one. [Ken Rushton] has one of C-Thru’s commercial keypads, the AXiS-49, and disassembled the device to show how it works. A PIC18F2450 microcontroller provides the USB interface and is connected to a dsPIC33FJ128GP310 digital signal controller which decodes the keypresses. The membrane buttons are made with … Read the rest

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Harmonic keyboard controller

November 29, 2008 By 4 Comments

harmonic

[aris] is continuing work on his harmonic table keyboard midi controller. Instead of the traditional linear keyboard layout, keys are laid out in a hexagonal pattern. This is the same idea as the C-Thru AXiS, which you can find a video demo of here. Along the left edge is a row of buttons to transpose the layout up … Read the rest

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