Ake Hedman wrote:
>
> First of all thanks to all of you out there. I'm new to this list and very rus
ty when it comes to hardware development but with the wealth of material on the
web and this list it was no big problem to get my first PIC-project to work.
>
> My hobby project for many years have been to build a system to control our hou
se. At the moment I am working on a heater controller built around a 16F84. Grea
t fun! I use a combination of 1-wire and RS-232 to communicate between/to differ
ent devices.
>
> I also would like to measure the atmospheric pressure but don't know a thing a
bout how to come up with an electronic solution to do this. With all the knowled
ge on this list. Does anyone have experience in this? Any hints, suggestions app
reciated.
>
> Ake

        I made it with a MPX2100 from motorola + LM124 AOP and 12 bit DAC.
Precision: about 0.1 mBar from 500 to 1200mBar.
--

  _____________
  \           /               David BALDWIN
   \ ALCATEL /               Design engineer
    \TELECOM/
     \     /         SdM (Societe de Microelectronique)
      \   /
       \ /      B.P. 4205            Phone : +32 (0)71 442932
        V       B-6000 Charleroi     Fax   : +32 (0)71 442905
                (Belgium)            mailto:baldwin@etca.alcatel.be