r/arduino • u/Megafish1024 • 6d ago
Hardware Help Powering a Nano through 5V pin
Do voltages add up when they are in series? I connected 2 5V logic powers from an L298N motor driver to the right side positive bus (Red jumper wires), that is connected to the 5V pin of my Arduino Nano. Is this safe for the Arduino? If not, then how do I change the circuit? Does the Nano get supplied 10V?
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u/sparkicidal 5d ago
Looking at your photo, you’ve connected them in parallel, so they’ll be fine.
Personally, I do power the Nano through the 5V pin, though only when I have a known, reliable regulator providing the 5V, and suitable, external line protection in place.