This reminded me of "lid controlled volume" (from the reddit running joke of absurd volume controls): https://www.reddit.com/r/ProgrammerHumor/comments/6fowct/l

This reminded me of "lid controlled volume" (from the reddit running joke of absurd volume controls): https://www.reddit.com/r/ProgrammerHumor/comments/6fowct/lid_controlled_volume_mac_edition/ https://www.reddit.com/r/ProgrammerHumor/comments/6fowct/lid... That one was implemented using the ambient light sensor to estimate angle.