Comments by "" (@grokitall) on "Mazda files false DMCA takedown notice to intimidate open source programmer 🤦" video.

obd is a common protocol mandated by law in the us and the eu for many years. you can get access to it using commonly available plugins for the obd port on your vehicle which can provide access either over usb or bluetooth, and there is open source software which decodes the api, knowing which data to send, and what the returned values mean. generally this api is decoded either by sniffing the signals another device sends down the wires, or by sending unknown signals down the wire and mapping the responses to get an idea as to what information is returned. some of this mapping is available from standards bodies. once you know the mapping, it just needs some boiler plate code to tell it to send this, read that reply, and display it like this.
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