Using USB and +5v power at the same time.

  • Hi,
    I'm working on a project using d1 mini pro.
    I have a question concerning powering the board. Eventually, my D1 mini will be powered using only with an external +5v source connected to the 5v pin, but at this early stage of development I need to reprogram it frequently and use serial as a debug info.
    My question is:
    Can I safely plug an external +5v source to 5v pin and plug USB cable at the same time ?


  • Yes, if you look at the schematic, you will see that there is a diode between the USB power and the 5V power, preventing the current from the external power source from reaching your computer.

  • @deshipu Thanks

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