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elm327 VAG (Volkswagen/Audi/Porsche) firmware

replacement firmware for the elm327 to interact with VAG cars.

flash elm327/dist/default/production/elm327.production.hex

see https://youtu.be/Pt6VR4PJDXg

commands

commands are a single character. newline is ignored, but may be nessesary for your tty to flush. The chip gets stuck easily if you send too much stuff, so try to only send commands after receiving state: ready

v: get VIN
s: get State Of Charge

output

all output is colon separated. the left hand side is key, the right hand side value.

state: ready | busy
value vin: ABC123
value soc: 73.2 %
error: vehicle on fire