A fairly new cheap PIC with uart built in is the 16f722 -

Under $1 in volume, and digikey has them for $1.66 (SOIC) and $1.96
(DIP) in quantities of 1.  It has more pins than you probably need
(28), though, so the next good choice has already been mentioned and
is the 16f688 (14 pins) for $1.88 and $2.08 (SOIC and DIP) at digikey
in quantities of one.

-Adam

On Tue, Aug 11, 2009 at 4:40 PM, uaca man<uacaman@gmail.com> wrote:
> In my plan of word domination the first goal was to make a led flash on a
> 12F629 and with help from you guys the led is flashing =A0and so I pass o=
n to
> the second goal: serial communication.
>
> Software USART did not work at all on the 12F629 and it looks like will be
> very hard to make it work.
>
> The choice of using the 12F629 was only on price and for some insane reas=
on
> I was thinking that serial communication would be a piece of cake, now I
> believe that a chip with hardware USART will be a better choice and so I =
ask
> for help again.
>
> What PIC should I buy?
>
> The sales man says that 12F675, 12F509 and 12F683 all have hardware USART
> but I did not find any mention of it in the datasheet.
>
> Any recommendation of PIC model with hardware USART will be greatly
> appreciated.
>
>
>
> Uaca
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