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Ok, but then why does the 5V and VIN pins have lower voltages then? And wouldn't that be a problem for many applications? I imagine that if I used a LCD display rated at 5V, it could (potentially) be a problem that it only gets 4.70 or 4.26V?
– Mads Skjern
Commented Oct 4, 2014 at 20:46
Btw: I am not an electrical engineer, and I am not able to understand the schematics. Maybe one day :)
– Mads Skjern
Commented Oct 4, 2014 at 20:47
2

It gets a lower voltage because the traces on the board have non-zero resistance, which results in a voltage drop. Check the datasheets of all components to see what voltage range they can accept, but 4.70V should be fine for 99% of all 5V electronics.
– Ignacio Vazquez-Abrams
Commented Oct 4, 2014 at 20:57

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