Quote Originally Posted by Beatrix
For that test, would I need to use an RS232 keyboard?
All you need is a simple piece of wire betwenn Rx and Tx on the PCs RS232

Quote Originally Posted by Beatrix
I didn't run it since I'm pretty sure the port works since I'm also using it to program my PICs. The baudrate and handshake is set on the PC as well.
Well that case I would assume the PCs RS232 isfunctional, but not compatible with the PICs Levels.

Anyway
If you want to make sure your Product works with any PC-COM-Port you should add a Levelshifter.

The PICs (0/+5V) Levels are ways off the specs of a standard COM-Port (+/- 12V)

And bear in mind: the MAX232 does not only shift the levels, it also inverts the logic.