Doublechecking how to power Arduino

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hey guys!

i have finished first version of project , want away pc. therefore wanted make sure don't hook power incorrectly , damage something. have got 2s lipo step-up board delivers 5v (i measured 5.03v).

now options are: usb-port, 5v, vin.
as far understand should able connect straight 5v , gnd - correct? , way recommend?

thank in advance!

if @ schematic arduino (uno ?) see connecting +5v rail puts the  voltage onto output of unos 1117 5v regulator.

its case of damage 5v regulator or have protection diode ? plus different/clone boards have different makers of 1117 regulators.

5v usb socket or 7v vin seem better ways.


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