Hi,

> > > is it possible to acquire the information about SMARTEC SMT160-30 on
>
> I have used it two years ago to mesure temperature
> with a PC.
>
> It has 3 pins : ground, +5V and output.
>
> Depending on temperature it generates a
> PWM Signal at TTL-Levels. So I have to mesure
> the High/Low ratio and calulate the temperature
> with two constants (gain, offset).

Check out the TMP03/4 from Analog devices.

Does the same.

Also check out cunning Pascal program to read temp in using one
input pin of a PC (any input :-).  (I use the game port as it has 5V power)

   http://www.ip.co.za/people/kalle/project.htm#heat

   http://www.ip.co.za/people/kalle/projects.htm#heat

One of them should be correct.

Cheers
--
Kalle Pihlajasaari   kalle@ip.co.za   http://www.ip.co.za/ip
Interface Products   P O Box 15775, DOORNFONTEIN, 2028, South Africa
+ 27 (11) 402-7750   Fax: 402-7751    http://www.ip.co.za/people/kalle

DonTronics, Silicon Studio and Wirz Electronics uP Product Dealer