@reeebs said in [Rpi3] NDS touchscreen:

I don’t expect nothing in particular, as the two positions - the real one of my finger and the one of the pointer - are completely wrong: if I move, it moves too, but when I am in a corner it starts from the center and so on

That's very telling behavior and explains why the Dolphinbar wasn't recognized. The touchscreen is apparently being read in this case as a standard relative coordinates mouse. If it were being read as an absolute coordinates pointer device, the cursor would snap to wherever it was you touched at. Needless to say, this limitation combined with the wide area required to receive input really hinders precision.

I took the advice from @jonnykesh and it totally worked, the problem was indeed the custom es_systems.cfg that was created when I ran a script for installing it, thanks for the support

Alright, thank you both for your responses. I'm going to keep looking and I will try to make it work. I'll post back if I found anything.

@sselph worked great on all of the Systems but the sega Genesis Mega Drive. Thanks again for all your help.

@meleu The video isn't anymore on youtube, unfortunately :c ...

Has anyone tried it more recently?? I was just curious to know if after more than one year it got better in performances...

@dankcushions When the post said 3DS support, this was me.

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@kokokool Drastic is not a Librero core, so you won't find it through the RetroArch core updater. Right now, the only options to run DraStic is to either buy it on Android or play it on a Raspberry Pi.

@Yamt The only thing you need to watch out for with those ili9431 screens is the pcb overhang at the ends. If you measure the distance from the end of the screen to the start of the buttons, you will see what i mean. There are ways round this of course, you can unsolder the pins and use cables to free up some space, also the screen is attached to the PCB with 2 strips of tape. once these are detached, you can actually place the screen and PCB separately (although they are still attached by a ribbon cable). For the final trick, if unsolder the sd card socket, and carefully follow the lines on the PCB, you can actually chop away at least half of the board, making it easier to fit inside the case

Then again, people make portables inside an Altoids tin, so a Zero in a MegaDrive or Atari cartridge should work, it just depends on your goals for the build.

@Chicago32 also you should brush up on the specs required for certain systems. No way the 3ds will ever be run on a pi.