Homebrew PCBs

I can definitely see the convenience in that, it skips the step of calibrating the ADC necessary with the National chip. It also means you can use the most bargain-basement PIC or other uController, since no ADC is required.

I've got some LCD displays, a convection toaster oven, some PICs, some thermcouple wire... I'm missing time. Maybe I should suggest this as a project in my class. Might as well get credit if I'm doing it anyway.

Steve Greenfield

--- In Homebrew_PCBs@yahoogroups.com, DJ Delorie <dj@...> wrote:
>
> 
> Yeah, they're both good, I was just pointing out the convenience of
> "read spi value, that's the temperature".  No calibration in the mcu,
> no having to test to see if you got it right, no analog circuitry at
> all.  Just read the SPI and use it as-is.  To me that was worth a few
> dollars.
>