MIDI

(MIDI to CV converter module)

• Dual Buffered CV Outputs
• Dual Buffered Gate Outputs
• Dual Buffered CC Outputs
• Midi Note/Gate Channel Learn Function by Button Press
• Midi Note/Gate and Midi CC Set Independently
• Midi CC Channel Learn Function by Button Press
• Midi CC Controller Number Learn
• All Settings Saved to EEprom and Loaded on Next Startup
• V/Oct (Linear) and Hz/Volt (Logarithmic) CV Output Available
• V/Oct (Linear) Mode Range: 8 Octaves

General

The purpose of a CV/gate converter is to transform incoming midi-note messages into control voltage for eurorack modular synthesizers.

Operation

During normal operation, a new midi channel can be learned by pushing the Learn/Mode button once. The indicator LED will light up and remain lit until a midi note or Control CC has been received.

Midi Messages: Note on, Note off, CC

The channel of that incoming midi note will then be stored in EEprom memory. The LED will strobe for 1 second to indicate the storing operation.

Same function for CC Messages, CC midi channel will be stored in EEprom memory as well as the CC controller identifier number.

Note that the midi channel for CC Messages is allowed to differ from the Key On/Off midi channel. This allows to receive Key and CC messages from two separate sources for both control and key On/Off.

This also means that in order to configure the device, the learn function has to be operated twice, once for Key and once for CC messages.

At next power cycle, the last stored Midi channel will be retrieved from the EEprom memory. Successful loading of the midi channel will be shown by a LED strobe at startup.

The MIDI module is based on this project and is used by Pittsbugh Modular with the kind permission of Obsoletetechnology.  Please visit Obsoletetechnology for source code and DIY information.