Just be aware of the possible risks. During the upload, the pins are in output mode so make sure they are not shorted to GND or Vcc through a button. And if your sketch uses them as outputs, they will be controlled during the upload.
Just be aware of the possible risks. During the upload, the pins are in output mode so make sure they are not shorted to GND or Vcc through a button. And if your sketch uses them as outputs, they will be controlled during the upload.