External controls

[VinceBarns]

I am trying to use a multimedia remote control to control the CarPlay functions and will report back. PS: the wireless connection works, but has significant delays. Any hints?

[harrylepotter]

Hey @VinceBarns - take a look at decoder.py - this is where the keypresses are interpreted. It'd probably be super straightforward to work the changes in there. I currently get media events from MPV. Not sure if your remote is compatible with that?

[VinceBarns]

Thanks. So far it only works as a workaround in desktop mode with key mapper (https://github.com/sezanzeb/key-mapper) by mapping the buttons of the multimedia remote control to your assigned keys. Basic problem: Key codes >255 are not natively recognized and mapped by the system. - this is especially the case in CLI mode. My goal is to start in CLI mode so I will find a better solution.

[aivs]

Hi! This is my solution to control CarPlay by the car buttons. Python script catches button presses on the CAN Bus (Skoda Octavia A5) and emulates keyboard keystrokes. Sometimes you get a few clicks, revision required. https://youtu.be/C-H0AFtaqCk

#!/usr/bin/python3
import time
import keyboard
import can

try:
    bus = can.interface.Bus("can0", bustype="socketcan")
except OSError:
    print("Cannot find CAN Board")
    exit()

try:
    while True:
        message = bus.recv()
        if (message.arbitration_id == 0x2C1):
            # UP
            if (message.data[2] == 0xAD):
                keyboard.press_and_release("right")
            # DOWN
            elif (message.data[2] == 0x9D):
                keyboard.press_and_release("left")
            # OK
            elif (message.data[2] == 0xCD):
                keyboard.press_and_release("enter")

except KeyboardInterrupt:
    print("keyboard")

[silverter]

@aivs thank you for posting this code. I got it - with some adaptation - working for my Audi RNS-E on a Audi A3 8P. If anyone is interrested in the code for Audi RNS-E, please let me know.

Now what I would like to do is integrate this carplay receiver into my custom car pc solution similar to this one: https://youtu.be/OCIqMNJsGWk I have the following questions:

1. How can I assign a button to start / switch to carplay on demand ?
2. How can I return to my carplay interface using the "manufacturer button" in carplay?

I hope you guys get what I'm trying to achivee.

Thanks all!