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Hardware
SiliconMind-pcb3
SiliconMind
README.md
README.md

View this project on CADLAB.io.

SiliconMind

PCB3 is a test release. Do not use . Unwired airwire on PCB. Use the hardware files

Pure Keys aec-pcb3.sch Pure Keys aec-pcb3.brd

PCB2 is a working release. Use the hardware files

Pure Keys aec-pcb2.sch Pure Keys aec-pcb2.brd

**make sure that the 20 way header(keyboard connector) is soldered on so the connector is on the otherside of the board to the components. **

Button 1 controls the mode. Starts in Polyphonc mode. Press once (2 flashes) for split mode. CV1/Trig1 is lower half of keyboard. CV2/Trig2 is upper Press again (3 flashes for mono mode. CV1/Trig 1 only Press again (1 flash) to return to poly mode.

Button 2* is record/play mode Press and hold (button flashes when ready) to enter record mode. The note on each trig in will be recorded (up to 64), the note length is **not recorded. When finished press once to exit record mode. Press once (quickly) to enter play mode.

For step type recording use a manual trigger press.

Note Will only record the bottom note, best used in Mono mode for recording. In playback mode will output on CV1/Trig1 and other notes are shifted up one. In Split mode upper half of keyboard is available.

Glide Controls the Portamento rate. Works in Mono/Poly mode. In Split mode only upper half of keyboard is glided.

This is a project to create a voltage control keyboard for Eurorack Synths. The aim is to create a fourvoice polyphtonic keyboard, with no MIDI at all.

The hardware is based around the ATMEGA.

See alos Changelog.txt in Hardware

Software

SiliconMind.ion is latest for aec-pcb2 First PCB hardware

Work in progress, in test !

Hardware Designs:

Pure Keys aec Original Design

Pure Keys aec-pcb1 First PCB do not use

Needs pull down resistors on MK lines 5V Ref needs replacing with 3v version Switch needs pull up, not down.

Pure Keys aec-pcb2.

Changes in pcb1 are rolled into this Pure Keys aec-pcb2 In Progress

Pure Keys aec-pcb3-inProgress (obsolete)

Next design in progress Changes from pcb2 are rolled into this

Pure Keys aec-pcb3-smd-inProgress

SMD version. Next design in progress Changes from pcb2 are rolled into this

Pure Keys aec-pcb3

SMD version. Do not use Unwired airwire on PCB.

        Changes from pcb2 are rolled into this 

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