CCC = CAC Control Center. CAC is an accronym for dedicated Pioneer CD Autochangers. CCCpivot provides communication with Pioneer CAC autochangers in webbrowsers through a websocket. Pioneer CAC jukeboxes are designed to be connected to a computer with a serial console cable. C, VB, Java, C# or Pascal language applications has libraries to access serial ports and send/receive datas with it. But web-browsers don't, they only can do XHR or websockets. CCCpivot is here to make a bridge between RS-232 physical connection and the TCP/web world.

CCCpivot is a simple Node.js script witch provides a TCP server to pass commands (via JSON messages) to a Pioneer CAC jukebox connected on a serial port and sends the result. One instance of the Node.js script is necessary for each jukebox (each serial connection). Many instances have to be launched if you have many autochangers to control. Each instance is separated with his own serial port and his own TCP port.

On Linux, manage CCCpivot processes with the CCClauncher Perl script. But it can be used without (standalone).

This is the most flexible solution for any application to simply access Pioneer CAC autochangers because there is no need to have the autochangers connected directly to the computer which run the application. Juboxes can be far away in LAN or WAN, handled through Ethernet, Wi-Fi, VPN (/!\ latency), etc...

When I purchased my two CAC-V3000 autochangers I planned to develop a traditionnal software with Lazarus (Windows and Linux compatible) with PostgreSQL DB. But some people give me the idea to make a web-based software and the serial connection was the real problem. So the CCCpivot can be used by both because binary compiled applications can also acces webservices as well as web-browsers.

• Raw installation. No distribution packages are provided for the moment (I have to focus my time on webapps dev).
• This software is dedicated to be used with Pioneer CAC autochangers only.

• Step 1 - Set environment - export these CCCxxxxx variables:

• Step 2 - Launch the script as you want (nohup, &, >, 2>&1) node /opt/cccpivot/pivot.js

All CCC modules are located in /opt directory by default. Install the latest Active LTS Node.js release

https://en.wikipedia.org/wiki/Node.js#Releases https://www.instructables.com/id/Install-Nodejs-and-Npm-on-Raspberry-Pi/ https://github.com/nodesource/distributions/blob/master/README.md

Make sure all is OK.

node -v
v10.19.0
npm -v
6.14.4

Download the latest version:

sudo -- bash  -c 'cd /opt;git clone https://github.com/duprej/cccpivot'

Install dependencies:

sudo -- bash  -c 'cd /opt/cccpivot/;npm install --unsafe-perm'

Check:

sudo ls -R /opt/cccpivot/

This is a more complicated way. Not really needed for home/local environment. Export theses additionnal variables (WS -> WSS):

Generate self-signed certificate for 2 years:

sudo su -
cd /opt/cccpivot/
openssl req -x509 -newkey rsa:4096 -keyout key.pem -out cert.pem -days 730

If you plan to use apache2, make a private key without the passphrase:

cd /opt/cccpivot/
openssl rsa -in key.pem -out key2.pem

Don't forget to:

• check configuration in ssl section of the launcher.cfg file in CCClauncher module,
• configure cccchangers.csv in CCClauncher (useTLS = true)

Simply change /dev/ttyUSBx device name with COMx Windows names (COM5, COM6, ...)

• Install Node.js Windows official MSI package from https://nodejs.org
• Ensure node.exe is accessible from everywhere (updated PATH variable)
• Download CCCpivot from github (with browser or git clone)
• Run "npm install" command in the downloaded cccpivot directory with cmd
• Edit CCCxxxx environment values in the joined start.bat file
  • Be sure to select the right COM port number
• Run start.bat with cmd

C:\cccpivot>start.bat
19:28:31.646 INFO  Starting CCCpivot 1.1.2...
19:28:31.647 INFO  Instance: ac1 - My jukebox
19:28:31.647 INFO  Listening port for websockets: 8000
19:28:31.647 INFO  TLS: disabled
19:28:31.648 INFO  Serial port: COM9
19:28:31.649 INFO  Baud rate: 9600
19:28:31.649 INFO  Debug: enabled
19:28:31.649 INFO  Timeout: 1 second(s)
19:28:31.649 INFO  Password: disabled
19:28:31.649 INFO  Autochanger model: v3000
19:28:31.649 INFO  Left Player ID: 1
19:28:31.649 INFO  Power GPIO: 0
19:28:31.657 INFO  Websocket TCP port successfully opened.
19:28:31.659 INFO  CCCpivot is ready!
19:28:31.721 INFO  The serial port COM9 has been successfully opened!