Python Carplay implementation for the "Autobox" dongles. Forked from https://github.com/electric-monk/pycarplay to include audio/video output via mpv and key presses

Video of WIP here: https://www.youtube.com/watch?v=D8P99BTqCCo

These are readily available from Amazon, but are also available from cheaper sources. The one I got was labelled "Carlinkit" here: https://www.aliexpress.com/item/32829019768.html

The dongle relies on the copying of various "assets" to the dongle that happens on every boot. To acquire these assets, a script is provided.

Simply run:

./downloadassets.sh

from the repository root.

This script relies on the following packages (installed via apt-get or otherwise):

• ffmpeg
• mpv
• libmpv
• libmpv-dev

The code is intended for Python3. To install the necessary packages, run this command:

pip3 install pyusb 

To run, call

sudo python3 carplay.py

(note: you need a user that is allowed to manipulate usb devices, or run as root)

The following keys have been mapped:

• Left - navigate left
• Right - navigate right
• Enter - select active item
• Escape - Go back
• s - Trigger siri. Note: this currently does not work
• p - Pause (if playing something)
• space - resume (if something is paused)
• h - home
• f - toggle fullscreen mode
• e - previous track
• r - next track

Working:

• Audio (for the most part)
• video
• key presses

Not working/implemented

• multi touch - note: electric-monk has an implementation of this in his tesla library. I haven't gotten around to getting it linked up in the mpv player
• Microphone - siri appears to change the audio mode (likely to a lower sampling rate), and my implementation currently doesn't deal with this
• telephone - For the same reason as siri not working

The real 'guts' of this project that drive device communication were not Implemented by me. They were discovered by Colin Monro (Electric-monk). His repo is here: https://github.com/electric-monk/pycarplay