opzync

sync your OPZ to other CV controlled synths, without an OPZ module!

Installation

You'll need:

• raspberry pi
• jumper leads, aligator clips, etc.
• patch cables
• and led

On the raspberry pi, run:

sudo apt update

sudo apt install -y git python3 python3-pip python3-rtmidi
pip3 install mido

git clone https://github.com/lockness-Ko/opzync
cd opzync

sudo cp opzync.service /etc/systemd/system/

Then, plug in your patch cables to GPIO pins:

• 2 for 6ppq
• 3 for 12ppq
• 4 for 24ppq

To connect the patch cables, use the jumper leads and aligator clips to connect the selected pin the the TIP of the patch cable and a ground gpio pin to the SLEEVE of the patch cable

Refer to this for GPIO pinouts: https://pinout.xyz/

Connect the flat side of the LED pin to ground and the round side to pin 14

To run opzync, PLUG IN THE OPZ FIRST and type

sudo systemctl start opzync

To stop, run

sudo systemctl stop opzync && ./kill_opzync.sh

To run opzync when you turn on the pi (e.g. for when you want to use it without a screen), type

sudo systemctl enable opzync

REMEMBER TO ALWAYS PLUG IN THE OPZ BEFORE YOU RUN OPZYNC

otherwise it wont work :)

How does it work?

It converts usb midi clock messages into 12ppq, 24ppq, and 6ppq cv clock pulses