I just checked this on g++ (Ubuntu 4.4.3-4ubuntu5) 4.4.3, and the error is suppressed until the -Werror option is given.

I shall add this to my makefiles, I think.

You can also add comments to an e-mail address. For example:

RealName+Comment@isp.com

Although, some forms will filter for this.

The pullup you had on your diagram is what made me wonder if it was Dallas one wire - it uses a very similar schema. Since you are using a serial port I did think it might be just plain old serial, but with a fast enough serial port you can emulate a 1-wire connection. A few years back I did a similar trick using a PIC micro and a 1-wire clock. We used these parts as size was a constraint - it was for the Key Phantom USB key logger.

Anyway, I'll keep an eye out for your next episode. Cheers!