This is the Adafruit 12-Channel 16-bit PWM LED Driver - SPI Interface - TLC59711
Tested and works great with the Adafruit TLC59711.
This chip uses SPI to communicate, 2 pins are required to interface (CLK & DATA).
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Written by Limor Fried (Adafruit Industries). BSD license, check license.txt for more information All text above must be included in any redistribution
To install, use the Arduino Library Manager and search for "Adafruit TLC59711" and install the library.