Push in the right direction pls? (Rotational control)

I’m trying to create a product I need which I don’t believe exists with no background in anything mechanical.

I’m hoping someone could give me a name or subject to research if I’m wanting to make a rotation control, as if you could use software to make this device turn off an oven, for example.

thanks for any help =)

submitted by /u/I_Dont_Shag_Sheep
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