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Kinkennon MIDI Resources
Matrix Encoder for Allen Consoles
The matrix encoder is designed for Allen Consoles or other keyboards designed as a 16x4 or an 11x6 matrix. Operation is at 5v as the encoder includes level shifters to adapt a 3.3v MCU to a 5v matrix.
Features:
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Teensy 4.1 MCU from www.sparkfun.com -- 600Mhz clock.
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Ports for 4 keyboards (or pedals) with the overall matrix being 16x16 (four 16x4) or 22x12 (four 11x6).
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Four analog inputs for expression pedals and other potentiometers.
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Option to provide external 5v.

Downloads:
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