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I'm trying to use Sparkfun's OBD-II-UART board to interface with a CAN network using a Raspberry pi 4. Upon connecting to sudo screen /dev/ttyAMA0 and when I send the commands, I'm not able to get any response from the OBD-II-UART board. Can anyone suggest why it is not communicating?

James Z
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Binjaw
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  • Are you sure you have configured the right baud rate? Are you sure you're sending the right commands? What kind of devices are also on the CAN-bus? – DrMickeyLauer Jul 22 '21 at 09:27

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