As a ready commercial solution I've only seen some QuickShot IR gamepads from late 80's that worked with AAA-batteries.
How ever if this is an issue for you and you are not against DIY solution, this sounds like pretty good novice electronics project. There is lots of information around the web to let you solve this issue... Take a look for example this tutorial After completing it you just need to assign I/O pins and rip an joystick cable from ie. Cheap SEGA controller. It should be pretty straight forward and there are lot of examples packed already with Arduino IDE. From Arduino you can control MSX Joystick port pins by switching between output/low and input. (Do not use output/high!)
Thanks for the info. I've never liked joysticks. I hate them since childhood jeje
I use this http://www.msxcalamar.com/catalog/index.php?id_product=8&con...
But if I could use a X-box One or PS4 wireless pad in MSX like NES, would be great. And... no batteries or plugs.
I have two of those QuickShot IR controllers that were compatible with MSX, NES and I believe SMS. It didn't work all that hot though. I'm sure a much more reliable version could be made today. I'd surely be interested! And even better if the controller itself was branded with the MSX logo somehow.
If you want, I can see about taking them apart and take some photos of it sometime if it helps.