I want dat program

What program? :/

????????????

I think he means input display

Both Kosmic, Darbian, and myself have input displays. I use a program called NintendoSpy, however, it’s not just a matter of downloading a program. I soldered cables to a NES controller extension cable to split the signal to go to my NES and an Arduino Uno. It’s complicated and I’m not sure is anyone sells them.

If you feel comfortable with a soldering iron there's a step by step guide with pictures online... I don't have the link with me, but it exists. I built mine. Using an arduino uno, a nes extension cable, and code using Nintendo spy... You can buy the whole thing (if you do it yourself) for like $35.

I know some people that commissioned it out. If you ask around you can probably find someone that's willing to make them at a profit

Maybe try this - https://gamepadviewer.com/

NOPE

this is a great thread

true

At the risk of feeding a troll - I found the link of the article that tells you, step-by-step, with pictures, how to create your own controller display for the NES console. You don't NEED to be able to solder, you can instead just use those plastic twist connectors to splice the cables. I followed this guide exactly, and created a controller display, and didn't spend much money. It's actually pretty easy, even for someone with limited experience in that sort of thing.

https://github.com/jaburns/NintendoSpy/blob/master/docs/guide-evilash25.md