From: sidwelle@gmail.com   
      
   On Friday, May 6, 2022 at 4:51:25 PM UTC-5, DJ Delorie wrote:   
   > "hundreds" means an array of 10x10 to 30x30 or so. This is not outside   
   > the realm of possibilities for a small MCU with enough pins. Even using   
   > a second MCU just to run the leds wouldn't be *too* tricky. Next up   
   > would be using an FPGA to run the matrix, since you have far more pins   
   > and hardware PWM options. At the top of the list would be an LED   
   > display controller perhaps? Or an OLED display driver?   
   >   
   > TI has a range of LED display drivers, like the LP5890, if you can   
   > solder them. And obtain them ;-)   
   >   
   > Or you could build your display out of smart RGB leds, like the kind   
   > they use on programmable led strips, and let them manage their own   
   > brightness.   
      
   DJ,   
   The 'LP5890' chip has some nice features, it would work. Thank you for that.   
   What did you mean in your last statement ?  "...  let them manage their own   
   brightness."  How would they do that ?  Is the PWM feature built into the LED ?   
   Sounds expensive.   
      
   Thanks   
      
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