Tom, thanks you for the suggestions. I'll be getting the datasheet on the
MAX186... Do you have any suggestions for driving a display? I am wondering
if I should use I/O pins to multiplex LED's or if I am better of using a
disply driver with a serial interface? Another idea would be to connect a
shift register to a couple of I/O pins and use it to drive the segments and
use other I/O pins to drive the common cathode or anodes of the LED's...

What's a good way to finding and sourcing components? I used to use
databooks but my books are getting old (1987-1993 versions) and I find a
lot of devices are obsolete or not covered. Manufacturers websites are
great for datasheets but I need to have a pretty small selection of devices
or browsing through datasheets is getting quite time consuming...

Regards,
Adi

----------
> From: Tom Handley <thandley@TELEPORT.COM>
> To: PICLIST@MITVMA.MIT.EDU
> Subject: Re: (not so) stupid newbie
> Date: October 9, 1997 10:51 AM
>
>    Adi, I've used the LM34 (F vs C) in several applications. I'd
recommend
> using a 16C71 with it's 8-Bit A/Ds. If you have to use a 16x84, there are
> several A/Ds with a 3-wire interface. I have a project where I use a
MAX186
> 12-Bit, 8-channel, A/D. This has a 3-wire interface. Five channels are
> assigned to 5 temperature zones, 2 for indoor and outdoor humidity, and 1
> for barometric pressure. Though I use a 16C74 in this case, you can
easily
> interface it to a 16x84.
>
>    - Tom