Are there any very low profile switches commercially available through Digikey, Mouser, et al? I'm thinking like the volume and power buttons on the sides of smartphones. I don't know if they have a special name, but my searches so far haven't been successful.
What are you looking for e.g. compared to an Arduino Nano reset button?
I mean a switch/button like this:
Most of what you see there is not the switch it is human interface.
What are you trying to do?
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I have a small, hand held enclosure (slightly bigger than the size of a USB flash drive) with a 128x32 OLED screen on the front face. I want the user to be able to scroll through data, select certain modes, and power it on and off. Aesthetically, I would like thin buttons on edge of the enclosure (similar to the volume button on my phone) rather than push-button switches on the face, but if those aren't feasible, I can make do with push button.
EDIT: Here's an enclosure very similar to what I'm planning on using