MMOS with STM32F4: G29 shifter?

Hi folks

I have tried to connect my G29 shifter to the STM32 but it seems not work.
Maybe the wiring is wrong or there is a bigger difference between these shifter:

G29: G27 / G25:

I have used the standard wiring:


Does someone know how to connect a G29 to the STM32?

@Peacemaker105 : Don´t you have a G29 shifter?
Have you connected it to the TDD or STM32?

Does that work at all?

kind reganrds
Peer

Hi
i found one thing that could be a problem.
There is a difference between G25 and G27
Pin 1 and Pin 7 are changed:


But which one will work with the G29 shifter?

I use a g27 shifter, my g29 didn't work, as you mentioned.. crazy there isn't a pinout for it somewhere on the internet? I haven't looked to be honest because I liked the g27 because of the extra buttons to map. Unfortunately with my slight EMI it keeps ghosting buttons when connected so I actually have my g27 wheel sitting on the floor next to my rig plugged into usb to use as a usb pass through for my gearstick haha.
I have a VNM shifter coming in a few weeks so I'm not overly worried. But would be good if you could work out the pinout for others..

Hi
Cause there is no Pinout of the G29 in the Internet i made it by myself

The G29 seems to work completely another way.
It looks like, it is working not like I2C, it is working analog an has an EEProm inside.

Its a "M95010-W 1 Kbit SPI bus EEPROM with high-speed clock"
https://www.st.com/en/memories/m95010-w.html
For whatever reason...

But i made a small connection diagram:

As you can see, at pin 4 and 8 are the analog outputs.
Pin 2 seems to be the "revers"-switch.

Maybe someone has a good idea?

Kind regards
Peer

Just another question:

I have found this USB adapter for all kind of shifter:
http://www.leobodnar.com/shop/index.php?main_page=product_info&products_id=188

Why does this work?
One Adapter for all different shifter?

because in the description "Automatic recognition of connected shifter type." ??
I guess there is built in logic recognising the different chips connected.

Hi folks

Only a short update from me.

I have connected the G29-shifter to a Arduino Micro at the moment.
The connection is like this: (shown is the male mating connector)

There is a free joystick library which i used.

Only when 6th gear is set and the switch is active (active means high at the pin) the R-Gear is active.
If you press the shifter to activate the switch in any other gear, nothing happens.

Hopefully it will be also work soon with VNM Wheelbase.
@Hoantv : What do you think? Will you put it in your Software?

Kind regards
Peer

I guess it is different resistance for each gear.
Hope this link can help you:

Hi @noSaint
I know this video.
With my Arduino it is working actually very well.

Here is the code I use:

Code:

#define XAXIS_12        350
#define XAXIS_56        590
#define YAXIS_135       800
#define YAXIS_246       300

int x = analogRead(9);              //read X axis
int y = analogRead(8);              //read Y axis
int reverse = digitalRead(7);        //read r-switch
int gear = 0;

if(x<XAXIS_12)                         // Shifter left
    {
      if(y>YAXIS_135) gear=1;         // 1st gear
          if(y<YAXIS_246) gear=2;     // 2nd gear
        }
else if(x>HS_XAXIS_56)              // Shifter right
    {
      if(y>YAXIS_135) gear=5;         // 5th gear
      if(y<YAXIS_246)
        {
        if(reverse==1) gear=7;        // reverse-gear
        else gear=6;                // 6th gear
        }
    }
else                                  // Shifter middle
    {
      if(y>YAXIS_135) gear=3;         // 3rd gear
      if(y<YAXIS_246) gear=4;         // 4th gear
    }
Joystick.setButton(gear-1, HIGH);

Maybe @Hoantv can use it.
But I think he already knows the code well from his shifter.
I only need to know witch analog and digital inputs of the STM32 he will use.

kind regards
Peer

im doing the same thing here but the video is confusing. i get errors every time about no joystick.h file or directory. i sure wish there was a bteer video on how to implement this H file into the correct directory. i have been going for the past 3 days trying to figure this out.

i will keep trying though and as far as the leo banard its 20 dollars but the cost of freight is way to much. i will keep serching a better more clearer way to make this happen

You can connect g29 shifter to stm by pins from video here, and use mmos, it works after some setup