Any ideas what i've done wrong. I made button box like

File: IMG-20170120-WA0003.jpg (1MB, 2592x4608px) Image search: [Google]

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Handbrake switch

This is just a proto, so dont mind that there is two switches and only one is connected :D it was just fastest and easiest way to get that switch right position.

>my wheel centering point starts to rotate more and more left?

this is meaningless.

>>1118574
switch is wired as normally closed or open?
handbrake input is floating in one position, the common (blue?) is either connected to white(?) (+ or 0v? -- fine) or nothing (bad possibly)
probably one side should be +v and one side should be 0v otherwise the input floats around and jumps between states which is bad. why would it fuck your steering i don't know but its all i can tell you from the picture you posted.

oh shit is white the input? i haven't touched a microswitch in 6 years i can't remember the pinout.

File: IMG-20170121-WA0000.jpg (1MB, 2592x4608px) Image search: [Google]

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>>1118612
I mean like this

File: IMG_20170121_092714.jpg (2MB, 2592x2592px) Image search: [Google]

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>>1118663
Here is little better picture wiring and swit h.

>>1118819
Is it centered in the software?
Or is this just where it leaves it when its done calibrating?
If the centering is fucked you might have to either clean or replace the optical encoder, it hangs out on the ass end of the right feedback motor

>>1118885
It is centered correct everytime I connect wheel to pc. When start to play and use handbrake few times, center point goes wrong. Reconnecting steering wheel usb fix problem, and wheel centering is correct again. But playing with it is impossible because after 5-10 handbrake pull center point goes wrong.. Hope you all understand me, my english skills are not 5/5 :)

Ok, sorry guys my bad! Handbrake isn't issue, it's the wheel. I unplug those extra buttons and center point goes wrong still..

>>1118574
Is it an optical wheel? I know with the arcade optical wheels there are two sets of sensors, offset. If one LED out of the two is dead, it only reads the motion as one direction, and any turn shows that direction. IE turning left shows it turning left, turning right shows it turning right.

The entire thing is deceptively simple when you look at it.