ntewinkel

The Arduino allows a lot of smart features to be added.As a clock, this Arduino version is probably not as good as even an inexpensive store bought clock.It's like using an Arduino to light an LED - lots of cheap flashlights give much better lighting!Adding the Arduino, or any other micro-controller, allows you to add more capabilities For example, you could add different sounds for hourly chimes or web-enabled alarms. Maybe add a wake-up light.Or the clock could be just a small part of a bigger project, like a sprinkler controller.I've used it as the basis for my "crazy countdown timer". https://www.instructables.com/id/Crazy-Countdown-Timer/Cheers,-Nico

One other thing to try might be to check if you're getting a proper 3.3v on the Nano 3.3v pin.Other than that I'm afraid I don't have the answer :( Maybe try Wiznet support?

Sounds like you did exactly what I did. I was using the USB from a Macbook (late 2009). And I realize now that all Nanos are 5v by design (I got confused with the Pro Mini options out there)... I suppose it's possible that some Nano clones might use 3.3v regulators with lower amp output, but that seems unlikely. Does it make a difference if you power the Nano directly with an alternate power supply?

One other thing to try might be to check if you're getting a proper 3.3v on the Nano 3.3v pin.Other than that I'm afraid I don't have the answer :( Maybe try Wiznet support?

I wonder if the power into the nano is not enough to supply both? For my Instructable I was using a 5v version of the nano. Not sure if that makes a difference.