News for hackers. Stuff that matters.
Re:You don't ever own an electric vehicle by sokoloff on Friday March 11, 2022 @02:27PM (#30644840)
There's an awful lot of people on enthusiast forums who quite clearly have no idea what they're doing, let alone have an engineering degree, and are able to connect to their CAN bus, add "magic boxes" (from their perspective) that change the behavior of the car/truck, add displays of onboard telemetry, or some other feature.

Only a tiny sliver of people need to understand how CAN actually works. Most Average-Joes just need to know how to connect (which is often done just via plugging into the OBD2 port, giving a keyed connector with power, ground, and at least one CAN bus).

As a hobby, I sell a low-volume device for a niche vehicle that works exactly this way. I assure that almost none of my users have any idea how a computer works, let alone anything physical on the CAN bus or what an MCP2515 or 120 ohm resistor is.

Re:You don't ever own an electric vehicle by petre on Friday March 11, 2022 @03:08PM (#30645364)
You only get a very limited set of diagnostics info through the OBD2 port. I'll probably get one of the Macchina devices to play with as well.
Re:You don't ever own an electric vehicle by sokoloff on Friday March 11, 2022 @04:01PM (#30645968)
That depends on the car. Many have the main CAN bus fully exposed on pins 6/14 and some of those have bridges to other CAN buses in the car connected.