Check 2 external 5V power sources or not?

Other Hardware General Electronics
1

Hello,

I am new to arduino, i have Arduino Leonardo Compatible circuit and i power it via usb 5v, also i have 2 other 5v power supply(Pwr A, Pwr B), i plan to plug Pwr A(+) in pin 7 (digital), Pwr A (-) on pin 1st GND (Power) and Pwr B (+) on pin 8 (digital), Pwr B (-) on pin 2nd GND (Power) is it ok? my idea is to check the power source Pwr A or Pwr B is there or not? Anyone can help me, I appreciate your help.

Thank you.

Louis

2

The safe way to do it:
a

2 Likes
3

Hi Jim,

Thank you so much, I will follow your guide to do it.

Louis

4

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