You can daisy-chain up to 62 boards together to control a massive 992 LEDs using the same two pins.
The TLC5940 is a "classic" constant-current driver. Unlike the PCA9685, it is a , meaning you don't need resistors for each LED—the chip handles it for you. Go to product viewer dialog for this item. 16 Channel Led Driver Arduino
Offers 12-bit resolution (4,096 brightness steps), providing much smoother fading than the Arduino's native 8-bit pins. You can daisy-chain up to 62 boards together
Very affordable, with modules typically ranging from $3 to $16 depending on the brand. You can find them at retailers like AliExpress or Sears. Best for Precision: TLC5940 SPI Driver it is a
While marketed for LEDs, it is equally popular as a servo driver.