Try leaving the configuration file aside and use the Core Input Remapping menu in RetroArch to map the L2/R2 (or other buttongs) to the PC-Engine's gamepad buttons, test it in-game, then save it as a game remap.

Ok I finally found where this issue was coming from. And it has nothing to do with other controllers afterall.

See the plastic case around the right joystick is not completely flat. Such that the 'Up' direction does not go exactly as far as the other directions in fact.

The axis values setup with uinput were : 0 to 40.
The real ADC values read were :

left-right axis : Between 4(left) and 37 (right) Up-Down axis : Between 6(up) and 38 (down)

So the up direction was 6 units from the minimum value, while the others were only 4 units or less from min/max values. And it seems that was the issue here. This 6 must have been considered inside the 'Dead-zone' of the joystick for the EmulationStation mapping configurator.

After modifying the python script such that the axis setup was between 0 and 36, and reducing the read values of ADC by 4, I now have :

The axis values setup with uinput were : 0 to 36.
The real ADC values read :

left-right axis : Between 0(left) and 34 (right) Up-Down axis : Between 1(up) and 35 (down)

And now it's registering correctly.

Though I think this issue is probably the same for the other topics/gamepads that I found on reddit/this forum. It's probably the joystick "dead-zone" which is too big in the emulationstation mapping configurator for those specific gamepads.

@txaras Just solved!!
I had the 5pin connector (the end attached to the stick) upside down.

@Gnomx said in Raspberrypi zero !WH:

I think MK is ok for my purpose , but it's just for RPi 2th gen ,right?

No, it applies to any models after the 2 - the 1st model had less GPIO pins available.

SO as Capeman says , im gonna install ADAFRUIT RETROGAME , i should use existing pinout , or can use all pin on board?

I'm not sure, you should check the RetroGame's schematics, they might have a preferred wiring schema.

Next,if I'm on old Rp0 without wifi connection , is it possible make an offline install?

It depends on what packages you already have installed, but you can connect the PI Zero to the internet using a microUSB cable to your PC and configuring USB/Ethernet gadget mode (https://www.circuitbasics.com/raspberry-pi-zero-ethernet-gadget/).

Yeah I like the keyboard one better, but maybe someone has some advice if this is still possible with the joystick type. I would think it would be but who knows ;)

@MaMikee

Just had a thought, if you followed the manual install instructions, it may have changed your version of GCC to an old version which may affect your ability to compile.

I can't remember what it was but it definitely happened to me at some point.

Edit: It was this line, forced an earlier version of cpp and GCC to be linked as current version:
sudo apt-get install -y --force-yes dkms cpp-4.7 gcc-4.7 git
I think I had to force reinstall the current builds of gcc and cpp back on over the top.

Si

@n64problems as a side note you will need to update mupen64plus from source if you want to take advantage of an update that fixed a graphics glitch with Yoshi's story

@melbmatt50

We need more information on your setup. The required information is outlined at https://retropie.org.uk/forum/topic/3/read-this-first.

@jdog35421 said in Controls mess up after I open a game.:

When I restart my pi by turning it off

are you pulling the power cord? if so, you could be corrupting your card!

@teve Some additions to @Lurker 's comprehensive post:

This video explains the majority of arcade joysticks on the market.

A extremely detailed website about joysticks and button layouts is slagcoin.com. Its creator approaches the topic with almost scientific commitment.

Another thing about the buttons you're considering: They have microswitches that make rather noisy clicks every time they're pressed and released. If you don't like that (I don't), you should look for leaf switches which are somewhat less durable but nearly inaudible. Alternatively, there are "silent" microswitches that are promoted as (nearly) noiseless, but they are more expensive and I don't have any experience with them.

The choice of speakers depends on your quality standards. I didn't like the sound of cheap speakers. Now I'm happy with wideband speakers for 30€ each. See my Asteroids-themed cabinet for a picture of them where you can see their brand and model.

@chrisbati

Unfortunately, c64 and spectrum joysticks only had one fire button command, no matter how many physical buttons there were.

The adapter may support more buttons on the output, but if it has no difference in the incoming signal, it won't be able to do anything else.

@jbodders2018 said in Amiga Joystick Axis:

with the same set up but Xin-Mo dual arcade joysticks, having updated Amiberry to the latest version and followed the instructions on setting the correct 'path

Yes I haven't solved it and no one has even replied with any info. I guess it will have to wait until it is not hard coded, but gets the config from Emulation Station's virtual gamepad.