Posts: 6
Joined: Sat Jun 23, 2012 2:41 pm


Mon Jun 24, 2019 6:30 pm

I think i've tried everything at this point, and nothing seems to work.

I'm using an ELM327 WiFi Dongle, connected it to the Pi, created a socat using:

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sudo socat pty,link=/dev/ttyUSB0,waitslave tcp:
tried to bind it to rmcomm using:

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sudo rfcomm bind 0 /dev/ttyUSB0
and then ran a simple python script:

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import obd
connection = obd.OBD()
cmd = obd.commands.SPEED
response = connection.query(cmd)
All i receive is this error:

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serial.serialutil.SerialException: device reports readiness to read but returned no data (device disconnected or multiple access on port?)

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