Is there a transmitter known to work with Freerider on Android 7? I tried a few of those that I found at home, but none of them worked. The device mostly got recognized on the USB level and charging options were shown, but the HID / usbserial / whoknowswhat layer probably didn’t make it through. Some of these devices require USB mode switching (e.g. the one for my Hubsan quadcopters) and for most of them the necessary kernel modules may be simply unavailable on a default Android image. And I don’t want to root this particular phone, so I can’t dig into that too much. Is there a transmitter known to work on Android out-of-the-box? The touchscreen controls are not bad, but I miss self-centering control sticks a lot.
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There are lots of transitters/gamepads that work with Freerider on Android.
It will differ on different devices though. Your device needs to support USB OTG. (Not sure if Android 7 makes any difference, I have no experience with that version myself).
Many people are using their Taranis, Flysky, Devo, xbox360, ps3, or universal usb RC transmitters on android for example.You can search for "freerider android" on youtube and you will probably find some tips.