I saw this and thought

Buzby

Senior Member
Once you've decided on the 'plexing method, then soldered the 390 SMD LEDs in place, the code should be quite simple !,
 

steliosm

Senior Member
Probably serial chips available to control lots of leds.
A single max7219 can control up to 64 leds. They can also by chained to increase the number of leds. You will need descent speed on the SPI bus to send the data out and create the needed effect, so you will probably need a chip with hspiout support.
 
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