joycontrol VS ComputerControl

Uh... There are DIY alternatives. Check this out.

Don't know for Arduino but I've had successes running joycontrol in the past on a laptop.¹

If I understand your requirements properly I think you would want to make some kind of relay device, the overall goal being to receive a single controllers bluetooth inputs as a host, and then to broadcast them to each BlueRetro receiver. The easiest route especially with tinkering in mind would probably be to use a Raspberry Pi Model B, making use of one of the open source projects that can emulate Switch joypads, such as: https://github.com/mart1nro/joycontrol

Last night, I was playing around with stuff like joycontrol, joytransfer and splatplost (repos here: https://github.com/Victrid/splatplost https://github.com/mart1nro/joycontrol https://github.com/lowlevel-1989/joytransfer), and I guess maybe I got frustrated with the virtual environments (as things were not working as intended) and decided to remove them and run things without it, as well as deleting a pycache in the joycontrol folder that was root owned. Bad idea!!

The library used was joycontrol which uses bluetooth to connect.

No. You can even connect and emulate controllers via bluetooth with joycontrol https://github.com/mart1nro/joycontrol. As for the switch fightstick thing, you need the hardware but it is just like using any other USB to the switch

It's Pokémon Automaion and it's really cool. Because of it I've been able to farm Tera raids for even better rewards. Fairly easy and cheap to setup as well.

If you are still into automating I'd like to point you to https://github.com/PokemonAutomation/ComputerControl . Using microcontrollers to control inputs and a lot of programs for all 3 (not lets go) switch games.

I use an arduino with Pokemon Automation but if you have a modded switch like you mentioned sysbot is probably better. Both just input buttons automatically and don't modify the game so they're legal fwiw. There's no RNGing statics like the Regis because of cryptosecure so SR is only way.

If at one point you want to relive some stress, check this out (it’s free, just requires some hardware): https://github.com/PokemonAutomation/ComputerControl

You may want to check out the EggAutonomous script from the PokemonAutomation project

Hardware setup tutorial: https://github.com/PokemonAutomation/ComputerControl/blob/master/Wiki/Hardware/README.md

https://github.com/PokemonAutomation/ComputerControl/blob/master/Wiki/Programs/README.md This one most of the programs for bdsp require a USB serial adapter and a capture card connected to your PC so it can see what's happening on screen. And jumper leads to connect the USB serial adapter to the micro controller.