DIY Pedals & Buttons Controller

@razzor13bt
and just to be clear - how you check what buttons are working? Device Properties in Control Panel can show only 32 buttons, but USB descriptor can handle 64 buttons, so not all buttons show up when you check them in Device Properties.
Can you try them in a game for example?

dont worry. i will get another board and lets see from there.
i am busy building a pedal box so will use the analogue input at some time.
probably my luck the board is faulty or i did something wrong.

@razzor13bt
before buying another board, please try to check buttons in a game or other joistick test software, which can show all 64 buttons

Thank you.
That sorted it out.
Checked assetto Corsa and everything is working perfectly
Much appreciated.

TOPMO3 i experienced a problem last night i wanted to use my sequential shifter that is running of the button box. When i set Assetto Corsa to use the seqshifter as up and diwn shift then i do not get my g27 pedals working.

Possibly caused by the analogue outputs that are running all the time. With the button box plugged in i cannot calibrate my g27 steering wheel. Is it possible to switch the analogue outputs off or how can i remedy ? I have them grounded as per instructions.

@razzor13bt , ok i'll take a look on this

thank you.

In the crew chief app and also in Assetto Corsa i noticed the button box comes up as a game pad and as a supplemental device.

Hi @razzor13bt

i faced a problem with non-working pin PB3 and still can't resolve this.
but i changed a USB descriptor and remove X,Y,Z axises, so can you try attached firmware? buttons matrix works without one column which is on PB3

Thank you. will give it a try.

better later than never

resolved issue with pb3, all pins should work as expected now

that last file works a charm . only issue i need to figure out is the settings when done are not saving in Assetto Corsa. every time i go into the game i have to reset/configure the button assignments.

Did you turn off/hibernate or change USB port your PC between launches of AC?
sorry, can't help much with AC, maybe AC forums contains any info?

i dont disconnect anything. if i exit the game and then open it again, it has the profile i saved there but buttons in the profile have to be reassigned.

really strange behaviour, because windows even doesn't reenumerate usb devices in this case.
I very doubt it's controller issue.
Is the situation the same in other games?
I found similar problem with AC, but still no solution unfortunatly

Hi all

I wrote a little app, which allows to configure pin's functions. Now you can choose function of each pin. Analog inputs now can have different levels of signal smoothing (for noisy environments)



Also now you can calibrate axises and store calibration values in the MCU itself.




link to app
link to new firmware

i have been very busy with work.
finally getting a break this week and will sit down and go through everthing again.
also managed to get a 2nd hand VPP racing pedal set that i can mod.
it uses a Joywarrior 24 chip. will gut it and hook up new pots.
just wondering if 10k 360 degree will be fine for use with the stm32 ?

awesome job with the app.
looks straight forward.
will post my progress.

Hi @razzor13bt

yes, 10K pot will be fine.
According to pot's degrees - probably 360* is too much, how many degrees the pot makes when you move pedal from fully depressed to fully pressed state?

TOPMO3
the pedals have dual sliding potentiometers hence i wont interfere with the original Joywarrior board with a usb plug.
The pedals also have a DB9 plug that can connect to a Logitech Driving Force GT wheel.
i am using this db9 plug to wire up to the Stm32.

just to confirm/check. i see conflicting info online.
for the analogue inputs must i use 3.3v from the stm 32 or 5v to supply the pedal pots ?
from what i have read up on the stm32 analogue inputs i must only use 3.3v.

thank you in advance.