I use AnkiMobile on an iPad with a Bluetooth controller for studying.
In one-by-one reveal mode, “Reveal Next” can only be triggered via keyboard input (e.g., pressing N), but there is currently no controller-mappable action for this.
Would it be possible to add a controller-bindable action for “Reveal Next”?
This would significantly improve accessibility and controller-based workflows for users who study hands-free or use assistive setups.
On the AnKing Controller page…
Choose Your Controller → 8BitDo Zero2 → iOS
… there is information about custom user actions that are mappable to controller buttons. The screenshots show an example with “Reveal Next Cloze” mapped to the controller Right Shoulder button. Perhaps the information on and linked from that page might help you find a solution?
This is possible through Anking/AnkiHub. They have an add-on that allows you to map special buttons for AnkiMobile. Speaking from experience as someone who uses this everyday.