DIY Pedals & Buttons Controller

Hi there,
This is a very nice and cool project that you have built.
I have one question regarding encoders. Can I use encoder as steering axis in video game?
For example initial position of encoder will determine initial position of steering wheel . If I move encoder left then steering axis should also move left and vice versa.
In my previous project I read encoder value through arduino and mapped that value between -32768 to 32768 then send that value to the PC as axis value.

Hello @TOPMO3 !!!

great project, very intuitive, thank you for sharing it !!!

please tell me is there any possibility that I would be able to choose the voltage of sensor supply ? I mean I have pressure sensors that need to be powered by 5V and your software works well with 3.3V power. When it gives a signal from a 5V powered sensor, it uses only about 65% of range

I have very expensive sensors that I wanted to use for the hydraulic brake pedal and handbrake. Is it possible that they work in the full range??? unfortunately they do not work when I connect them to 3.3V :/

Thanks !!

Sorry, no good news for you guys

I see what you mean, but currentlly its not possible to map encoder's value to an axis. Maybe later I can do this.

The STM32F103 chip's ADC upper limit is 3.6V, so we can do nothing with your problem. Is it possible to tune your sensor output to 3.6V? Some sensors have separate Power and Reference Voltage pins

My sensor do not have separate Power and Reference Voltage pins but I found the password "Voltage Divider" , it looked simple so I tried it and that solved my problem, I use resistors like on this scheme and changed 0-5V to 0-3.4V



Is this a good solution ??

You know, I think yes, its good - simple and effective

I'm going to make one such control board too, that is to weld and I still practice.

Hi @TOPMO3 , Of sure I'm still going OT, but I want to show you the result of your work thanks to which I managed to make this jewel. Thanks again and merry Christmas

Wow, very nice looking rim, @Giustino ! I really like it
Merry Chrismas you too, mate!

awesome job there Giustino.
All of the best for the new year guys.

Thanks for this tutorial and program @TOPMO3 !

I ordered some bits and bobs which finally arrived so now I started on my button box for Euro Truck sim 2 / American Truck sim

Can't wait to get it all rigged up. It's my first time doing any of this so should be an interesting experiment.

Will keep you updated with progress!

Thanks again!

Hello man, i want to try your software but i cant, any idea why the software always error when i connecting the board? Even i have 2 board to try..

Hi @BS21

In a case of such errors the most possible cause is bad config. At first, please be sure you are using fw and app of the same version - I.e. 0.14
Can you please make these steps:
- make full chip erase
- reflash fw
At this point your board should be identified as joystick (with default config) in windows.
- launch OSH Studio. Once again ensure you are using the same versions of the app and few
- click get config from device. Default config should be loaded and be shown in the app
- make new config you needed and click save config to device.

Try to make these steps and let me know if you have any error

Yesterday i got problem when reflashing it brother. Board getting lost connection and dont want to reconnect when i start pushing reset button and clicking "ok" in st link software. But i'll try again tonight. Will let u know for the next..

insteed of making connect under reset you can just switch both jumpers - then stlink utility should connect to board without any issues. After reflashing dont forget to switch jumpers back

Hi all!!

First of all thanks for that amazing work TOPMO3.

I'm getting the same problem when I connect the usb in the computer with the OSHStudio running, or when I run the programm with the usb connected. I reflashed too many times and tried versions 0.14 and 0.13 and the result is the same.
I'm using windows 7 64bits and it get me this error description (sorry because it's in spanish with my own translation):
Nombre del evento de problema("Problem event name"): APPCRASH
Nombre de la aplicación("App name"): OSHStudio.exe
Versión de la aplicación("App version"): 0.0.0.0
Marca de tiempo de la aplicación("App time mark"): 5a0dbec6
Nombre del módulo con errores(" Error module name"): OSHStudio.exe
Versión del módulo con errores("Error module version"): 0.0.0.0
Marca de tiempo del módulo con errores ("Error module time mark"): 5a0dbec6
Código de excepción ("Exception code"): c0000005
Desplazamiento de excepción ("Exception slide"): 000019f6
Versión del sistema operativo("S.O version"): 6.1.7601.2.1.0.256.48
Id. de configuración regional ("Regional ID config"): 3082
Información adicional 1 ("additional info"): 0a9e
Información adicional 2: 0a9e372d3b4ad19135b953a78882e789
Información adicional 3: 0a9e
Información adicional 4: 0a9e372d3b4ad19135b953a78882e789

Hi @xavi_trd

You mean the app crashs even if you don't click any buttons? Hmm
It seems like some local PC issue, hard to diagnose such errors
Do you use USB-hub? If yes please try to connect right into MB USB port
if you use USB3.0 port try to use USB2.0
Try just to change USB port, for example from front to rear
Do you have an option to try a different PC? as last resort

Thanks for the response @TOPMO3.

1. Yes, as soon as I connect the usb the app crashs. Sometimes I can see that the board is linked with the app, but can't do anything before it crash.
2. I'm not using a USB-Hub.
3. I Used front/rear and 2.0/3.0 USB
4. I tried to use it in my computer and in my laptop
And the result is always the same....

Someone have tested the app with a BlackPill board????

If I can, tomorrow I will test it in my workplace computer to discard that it's Norton trying to kill me , because it's warning me about a infected file the first time I execute the app.

Thanks!

Hi,

Today I have tried in my workplace computer with W7 and it didn't work, but I tried in my GF laptop with W10 and it's WORKING!!!
I don't know if it's the O.S or Antivirus who was crashing the app, but now I can start my little project.

Again, thanks TOPMO3 for this great work.

Hello..
What u mean to switch the jumper is SWDIO and SWCLK? I've done to switch them but still no connection after reset. Or please can you post step by step how to reflashing or downgrade the firmware? Currently used 0.14 FW and OSH. Thank you