Arduino Nano RP2040 Connect, 3.3 V power

[nsedoglavich]

Can the Arduino Nano RP2040 Connect be powered by 3.3 V input instead of 5 V input? I know that it operates on 3.3 V, but wonder if it needs 5 V for any of its peripherals. I would like to run it by supplying 3.3 V directly from a battery and a 3.3 V buck converter.

[gilshultz]

@nsedoglavich

Arduino Nano RP2040

It should work work just fine. Be sure you decouple the power supply.

[Dozie]

Stick with the recommended VIN input, see below

[nsedoglavich]

I hooked up a battery and a 3.3 V buck converter. That 3.3 V supply is connected to the 3.3 V pin on the board and it works just fine.

BTW, I disconnect this approach when plugging in the USB for programming as it could have an issue with it's internal regulator trying to create 3.3. V from 5 V on the same if external 3.3 V is connected.

[dominik1]

I found a diagram in Arduino Nano RP2040 datasheet with information that the range for VIN is 3-20 V. What is the right power supply range for Arduino Nano RP2040? Is it 5-21 V or 3-20 V?

[joffutt3]

Any answer on this?

[jhaytera]

Welcome aboard! Looks like nsedoglavich, above, said it should work. It's market as the solution.