Hi,
have one value of currentMillis to compare all the LED times
this is so obviously logic!
modified the code right away and... no, not synchronized!?
Also, if that was the problem, then, when I put the 3 intervals to the same value
long interval5 = 1000; // interval at which to blink (milliseconds)
long interval6 = 1000;
long interval7 = 1000;
they would also get out of sync.
this difference is what makes this wak, they stay syncronized with the same interval value...
I also tried rewiring the thing to other pins, didn't do anything