Joy-Con IR camera has another use?

[SonytendoAmiibo]

Barkley said:

SonytendoAmiibo said:

The Wii and Wii U had a sensor bar to help keep the wiimotes from drifting, but the Switch doesn't have that.

I'm not sure you understand how the Wii Remotes work with the Sensor Bar. The Sensor bar is nothing but an Infra-red Light Source, the IR sensor on the remote detects the angle the IR light is coming from and with that decides where to put your cursor on the screen. The Sensor Bar had zero impact on motion controls, it was for the cursor and that's it. 

 

And your leg is also a heat source giving off an infrared signature. Unless you are a vampire, in which case you can't play ARMS.