This is an i2c-controlled PWM driver with a built-in clock. This means that it is different from the TLC5940 series. You do not need to constantly send signals and 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).
Address select pins so you can put 62 driver board hanging on a single i2c bus, a total of 992 PWM outputs.
About 1.6KHz Adjustable Frequency PWM output Ready to output 12 resolution of the stepper motor, which means that at 60Hz refresh rate can reach 4us resolution.
Configurable output; push-pull output or open.
Output Enable pin to quickly disable all output.
Green power indicator.
Four groups of 3-pin connector to connect 16 servo motors (servo plug slightly wider than 0.1 ", so you can put four pairs of 0.1" connector).
Reverse polarity protected.
All PWM output lines have a 220 ohm series resistor to protect them, and can easily drive an LED.