I'm wondering if I can load a LED with a 2.2K resistor tied +5V and other side to a SW & Arduino?

Opposite side of SW to GND.

Will this set pp damage my MEGA 2560?

I can save a lot of Arduino pins doing things this way.


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If you need the LEDs for just to indicate the switch position (as "Korry-type switch), you need the switch with two pair of contacts - one for input, another - for LED powering. http://simvim.com/tips_panel.html

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