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Bluesuite 8192 baud

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The maximum current that can flow in the ECU output transistor is 5V/10k ~ ½mA.

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The interface must also have a switched transistor to 0V only.

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USB TTL drives the output high which could potentially cause the ECU output to blow.ĪLDL is half duplex: The ECU output is a 10 kohm resistor to +5V with a switched transistor to 0V. I wish to connect my car's ALDL (Assembly Line Diagnostic Link, sort of OBD) to my pc via usb 5V TTL board(may add arduino later) I looked in the website it said connect USB TTL's Rx/Tx together and then connect to the ALDL data line.

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