Quote:
Originally Posted by Gray335i
I can monitor all canbus messages with Arduino and Ta1055 or canbus shield so number of digital inputs on arduiono is irrelevant. Alps using a same setup you can send as many messages to canbus as long as you know their id. Message IDs are the same between 2 protocols as fast as I can tell
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Digital inputs aren't for the canbus messaging, they're for the CIC controller, which has 6 buttons, am/fm, and mode, along with a volume knob.
The output cable for that is not a bus, it is individual signaling per control/button.