Smartphone wifi gamepad

Hi everyone! Is there a possible to use my smartphone as a gamepad? I’m gonna play on an android box. Unfortunately I don’t have any controller. Maybe there is a dedicated app for retroarch? I’ve tried some apps from play store but nothing works. Please let me know if is a chance for that. I’ll be appreciat it.

If you go into ‘load core’ there should be an option to ‘start remote retropad’, which is intended to do exactly this. It’s kind of awkward to set up, since you have to enter the IP address in the core options, but once that’s done, it should hook up.

That’s great. I’ll try. Thanks.