Jane1:
Thanks for the reply.
I do not need the full ( true) RS232 protocol .Only convert voltage level so that I can connect to a device that has UART available.
Or is Arduino 5V ( that RS232 has) tolerant?
Thank
I'm sorry I don't fully understand your question and the subject is all about actual details and facts Vs simply the normal standards and practices. Perhaps if you could provide a link to the external device it will provide enough details to confirm what you will actually require?
Lefty