Tlc5940 Library
April 6, 2023 ยท View on GitHub
16 channel PWM LED driver based on the Texas Instruments TLC5940 chip.
http://www.pjrc.com/teensy/td_libs_Tlc5940.html
http://code.google.com/p/tlc5940arduino/
http://playground.arduino.cc/Learning/TLC5940
https://github.com/PaulStoffregen/Tlc5940

The TLC5940 chip SCK pin is sensitive to signal overshoot. When used with Teensy 4.0 or other high speed hardware, especially if using long wires, you may need to add a resistor inline with the SCLK signal.
https://forum.pjrc.com/threads/71009?p=323766&viewfull=1#post323766