CharlieCube64

They seem as bright as ever, these are new LEDs, i havnt used them in other things. I hope to make a couple more cubes with them for comparison.

Which should break first? the LEDs or the arduino? and if its the arduino, what will break on it (voltage regulator? CPU?

I dont have a scope, but I have a multimeter, is there a way I can test and measure bad things are happening?