Servo Motor Driver I2C Module PCA9685

Servo Motor Driver 16 Channel 12-bit PWM I2C Module PCA9685

This is an i2c-controlled PWM drive and a built-in clock. This means that it will and TLC5940 series are very different. You do not need to constantly send signals occupy your microcontroller

It is 5V compatible, which means you can also use 3.3V MCU control and safely drive to 6V output (when you want to control white or blue LEDs with 3.4+ positive voltage is also possible)