Hi Jeremy,

If you're buffering the data in the uC's ram, you shouldn't be impacted by the PC's uart fifo. It's pretty simple to convert the data you've received into ascii to send to the PC, unless you're writing the software on the PC end also (I'm assuming an standard terminal-type program running on the PC, displaying ascii text).

The hardest part will be implementing a software semi-slave I2C that can recognize the I2C start and stop and such. At least you don't have to worry about recognizing a slave address in time to respond with the ACK; just note whether or not an ACK was sent.

Your project sounds like one that others would like to use once you get it done. I too have wanted something like this but couldn't justify the time to implement it, and didn't need it enough to justify the price of any commerical products.

Good luck! Let us know how it works when you're done.

Dennis