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Comment Re:Open Source? Not exactly. (Score 1) 100

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!

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