Continuing from my problem previously. I do have the decoupling 100nF capacitor on all my tlc's, and the problem still stands. Now I switched from a UNO board to a Nano 168 board and strangely the problem disappears. But the fading speed also becomes much slower. Again, I'm using the example Fades in the tlc5940 library.
So why the speed is different? Is it because of the faster clock speek on UNO? But I thought the example would have taken this into account when I change the board setting in the arduino menu.
And why the flickering disappears on the Nano but not the UNO?
thanks