About arduino pro mini power supply and serial monitor

Official Hardware Classic Pro Mini
1

I want to run my arduino pro mini on an external power supply from (Vin(RAW)) or 5V pin.
Furthermore, I want to connect it to a PC at the same time and monitor the output serially.

The 5V supply will be provided from two places, is there any way to avoid this?
For example, is there a good way to cut off the supply to the arduino pro mini from the PC side?

I think it is ok for arduino UNO as it will be cut off by a comparator. 、、、、

Translated with DeepL

2

Use an Arduino Micro or Nano instead.

3

Just don't connect the Vcc from the FTDI

2 Likes
4

Removed VCC 5V from FTDI to arduino pro mini and it worked successfully. Thank you very much.

5

Have a nice day!

6

This topic was automatically closed 180 days after the last reply. New replies are no longer allowed.