Powering arduino nano

hi everyone.
I have a small project of a scale connected to an Arduino nano , so I'm using the arduin to send data to the excel for further analysis,so the arduino is powered by the its usb connection to the computer,
is it possible to use the same usb to coonect it to a mobile phone charger to power the arduino instead of the computer?
So the project can work on its own without any computer.

Yes, but keep in mind, the Nano has a reverse polarity prevention Schottky diode in the USB power path that drops about 0.3 volts, so your Vcc voltage will be about 4.7 volts. Will your scale work OK on that voltage?

Please post a link to the datasheet of the scale.

here is the sketch


but the actual thing don't have the pull-up resistor .

here a better version of the diagram

@JCA34F
I think this is not a problem as the diode also affects the current coming from usb the computer that I'm using now ,and that wasn't affecting my project at all.

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