Connecting Arduino Uno to RS232 ‘ME221’ Automotive ECU

Projects General Guidance
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Hi all!

Im hoping for some advice on what i suspect (hope!) is a relatively straightforward task. Im new to arduino so im very much learning still.

Basically I have a Motorsport Electronics Me221 ECU which i would like to connect an arduino to, in order to extract data from it.

The ECU has a 9pin connector and uses r232 communication. To connect the ECU to my laptop, i have a Serial-to-USB adapter cable and I can then use the ME tuning sw.

So would i simply need to attach a female usb port to the arduino, and terminate this port to the appropriate serial pins on the board so I can connect the USB to serial lead?

Or is there something else I need to buy or use to achieve the above?

Thanks in advance for your help and support!

Kind Regards

Joe

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Keep it simple use an Arduino Mega or other one that has more than one serial port. For example the UNO is more difficult because it has only one serial port and it is used for debugging, uploading etc. You can get an RS232 module for the Arduino for not much. You could use the software serial but that can get fussy with real time data.

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