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Yes BUT you MUST use a resistor to connect PIC to base of transistor !!
I'd suggest a 470r or 1K to start.
Typically you use an NPN transistor, with emitter connected to ground, 1K resistor from ba ...

Normally these days you use a 'logic level FET' to drive fans. PIC I/O pin to gate, FET source to ground, drain tied to fan -ve, fan+ to +5V.

I know, but I don't have one of them, can I use a t ...

Post a schematic of what you are doing. Either put a picture up on a site (free or otherwise), and post a link to this, or do an ASCII text schematic.
https://dl.dropboxusercontent.com/u/53376851/Imm ...

on the pwm output I've connected a transistor, and removed the led.
The pwm signal enables the transistor on a 5v line, so I get a 5v pwm signal on the output.
on the program, if I set C2 (pwm) high ...

The reason it is failing, is you are overloading the PIC.

No current limiting resistor = PIC port shorted to LED forward voltage max. Result overload. As you turn up the duty, the overload gets bad ...

#include <18F46K20.h>
#fuses XT, NOWDT, NOPROTECT, BROWNOUT, PUT, NOLVP,
#use delay(clock = 4000000)

main()
{
setup_oscillator(OSC_8MHZ);
output_c(0 ...

So, have you first verified the chip actually works?.
Flashed an LED just using output_high/output_low?.
MCLR pulled high?.
What current limiting resistor have you got on the LED?.
the lcd works, ...

You seem to have some pin confusion.

You are half setting up CCP1, then trying to use CCP2....
You haven't setup CCP2 as a PWM.
Also CCP2, needs to be told which pin it is to use (CCP2C1 fuse).
...

Hi everyone!
I'm building a speed regulator for a fan on my desk, with a pic and a display.
For the speed, I want to use PWM over a transistor.
So, I built #include <18F46K20.h>
#fuses XT, N ...

I've bought this (http://www.mikroe.com/add-on-boards/display/tft-proto/) tft display from the mikroe store, it have the ILI9341 controller.
There is a library for that?

now all works perfectly!
http://pastebin.com/2MxXpBtd
I don't know why before I had problems.

so, I've modified the program...
http://pastebin.com/7ziSy40G
the problem is the same:
-6 main leds blink one time.
-LED7 blinks as he wants.

Oops...
This afternoon i will test the program with that.

By making one while with the code from the variables of the buttons to the end.
Delete lines from 64 to 68.

If i put all the code in one while(1) the problem is the same.