Yeah i will not solder surface mount components ! Not yet. Maybe never because i think machines can do that very well !
The CAT9532 seems to be interesting, 4 different brightness is better than 2 ! The negative point is that the max7219 can drive 64 leds instead of 16 fors this one. I need to drive at least 441 leds. So ...
I understand that the cat9532 can keep in memory two blinking frequency. Is the blinking the way to change the brightness ? Stupid question maybe :
But the cat9532 is a lot cheaper !