Uno Pins verses Nano Pins

Projects General Guidance
1

I have a project involving the 4 digit led display. It works fine on the UNO with CLK=pin 3, DIO=pin4.
The project does not work on the NANO pins 3 and 4.
Should I using another set of pins on the NANO or .... ?
Thank you in advance.
Rick

2

There should be no difference...

pins 3 and 4 are wired to the same pin of the same microcontroller on the Uno and Nano. It is expected that something that worked on an Uno would work on a Nano... Double-check connections.

3

If this is a serial ("SPI") display, it requires three interface pins. What is the third?

It is nonsensical to pose questions without explaining what display you are using. "the 4 digit led display" tells us basically nothing.

4

You are referring to D3 and D4 on the Nano, I hope? Not counting pins on it?

5

Thank you all for the quick response -

DrAzzy you were right, I simply needed to check the connections one more time !

Thank you all again,

Rick