Help with this project

[soulraven]

hello, I can help me with a project?
I want to make a minicomputer car and have the following functions
1. Water and oil temperature
2. Temperature inside the outside
3. 3 release of the order to relay a command electroventilatorul
4. Ceiling Ordered to Dimmer button doors
5. Contrast automatically display based on light
6. Turometru
7. Mileage
8. Litrometru for reservoir (gas gauge [petrol gauge])
9. Flow meter for carburetor
10. A menu command for all the above

I use a 16F877A, that has two hardware PWM good DIMM.
a 16x2 display and the sensors DS18B20.

First I tried to start in proteous sensors, but I do not know how to start with the drivers. I did not read any temperature.

I know that the project is quite complex, and are at the beginning we never programmed PIC's, but I think with your help can be achieved.
Below is attached blueprint of the moment, and still missing many, but I come to ask, or if you have any ideas please help me

Excuse my poor English.
http://img7.imageshack.us/my.php?image=calculatorcm3.jpg

[pyu]

Do you use one, or more ds18b20 sensors for one wire?

[Guest]

4 sensor