Fungus, that´s not the fade demo running, it´s the code from the first post in this thread, but with a few more LEDs added.
Bigger Bigger Smaller Smaller Reset Reset Reply with quoteQuoteIm not sure by your picture, but I think you may have the 47 cap on it wrong. I think you want positive lead on the chip, and the negative lead on the ground of of chip, or the ground rail.
think its 2k in the demo for 20ma, If you change that to 4k, it I think that will set if for about 10ma.
In case I can´t fix this issue with the TLC5940's, is there another way to get 30 LEDs to breathe smoothly in different duration/speed?