DIY - FOR EXPERIENCED BUILDERS - SMD PCBs and Micro processor ONLY

NOTE: The SOIC packages are very small and require skill to solder in place correctly. You must have adequate SMD soldering skills to make this a successful build. Please take this into account before ordering!

SUMMARY

The unit is designed for a modular synthesizer and a PC with a DAW such as Ableton Live, and/or a MIDI keyboard with a DIN cable and/or a MIDI-USB music keyboard.

This module requires surface mount parts and soldering skills.

Use this module to connect a range of popular USB MIDI keyboards:

• Roland A-49
• Arturia MiniLab MKII
• Arturia MiniBrute
• MidiPlus AKM 320
• M-Audio Keystation 49
• M-Audio Keystation 61
• WORLDE Panda MINI 25-Key Ultra-Portable USB MIDI Keyboard

and directly play your analog modular synthesizer.

Ideal for retrofitting vintage keyboards for MIDI control.

IMPORTANT NOTE

This is a PCB and Panel set only. This is a set of 1 high quality PCB, PIC micrprocessor and front panel ONLY. You will need to purchase your own components (except the micr processor) and build your own module. Comprehensive build instructions and BOMs are provided to help you source the components needed and we even provide links to shopping carts to simplify sourcing those components. Some product photos above show COMPLETED build.

The kit includes a pre-programmed PIC microprocessor SOIC.

Getting started

If you would like some practice, we recommend This SMD Beginner's kit and Tutorial or A More Advanced Kit and Tutorial to learn the techniques and sharpen your skills.

Connections

1. You can connect a DIN keyboard using the TRS jack. You will need a MIDI/TRS Type A cable or a MIDI/TRS Type B cable depending on how you have configured the jumpers in the MIDI-CV-1.
2. You can connect a USB keyboard. The device will operate as a USB host and power the keyboard on its USB bus while receiving MIDI data from the keyboard.
3. You can connect the Midi-CV-1 as a USB device using a computer or other host connected to the Midi-CV-1's USB-B type socket. This connection will be used for connecting your DAW, such as Ableton Live, to the MIDI-CV-1.

Construction

The module (when using our front panel) is Eurorack size and only 4HP wide leaving room in your rack for other modules. With the PCBs only, you can wire any pots and jacks to your own front panel or standalone case.

If you are a composer, create your own MIDI sequences, backing tracks or songs using your favorite MIDI-USB keyboard.

The module uses a PIC 24 bit microprocessor to convert the midi messages from the keyboard or PC into digital codes which are then converted into gate and control voltages. These are buffered with precision op amps providing precise tracking over three octaves and to within 0.01V over 5 octaves.

The following MIDI-USB Keyboards are supported, others may work also.

• Arturia MiniLab MKII
• Arturia MiniBrute
• MidiPlus AKM 320
• M-Audio Keystation 49
• M-Audio Keystation 61
• WORLDE Panda MINI 25-Key Ultra-Portable USB MIDI Keyboard

Comprehensive documentation, parts lists and firmware are provided in the documentation link for building, testing and using the module.

Arturia addendum to user guide (Courtesy of Erik Moe, module builder and user):

Hold down the SHIFT key and turn ENCODER 1 counter clockwise a couple of rotations in order to set the master volume to 0. Once the master volume is set to zero, press the OCT (-) button 5 times and then Midi-CV-1 will be in command mode.