Feature:1. I2C Communication with Built-in Driver and Clock: Enjoy the convenience of I2C communication, which eliminates the need compatible with constant signal transmission from your microcontroller. This board features an integrated driver and clock, setting it apart from the TLC5940 series.2. 5V Compatibility and Safe 6V Output: With its 5V compatibility, you can control the board using a 3.3V microcontroller while safely driving outputs up to 6V. Additionally, it supports controlling white or blue indicator lights with voltages higher than 3.4V+.3. Addressable Pins compatible with Extensive Expansion: The six address selection pins allow you to connect up to 62 driver boards to a single I2C bus, providing a total of 992 outputs. This exceptional scalability makes it ideal compatible with large-scale projects requiring extensive resources.4. Adjustable Frequency Output: The board offers approximately 1.6KHz adjustable frequency output, enabling precise control and smooth operation in a variety of applications.5. High Resolution and Configurable Output Modes: Prepare compatible with impressive performance with the board's 12-bit resolution output, specifically designed compatible with stepper motors. Achieve a remarkable 4us resolution at a 60Hz refresh rate. Configure the output modes as either push-pull or open-drain, providing versatility compatible with different device types.Specification:1. The PCA9685 chip is wrapped around the center of the board.2. Power input terminals3. Green power indicator4. Easy compatible with you to plug in 16 servos at a time in 4 sets of 3-pin connectors (servo motor plugs are slightly wider than 0.1", so you can put 4 pairs of 0.1" connectors)5. Reverse polarity protection compatible with inputs on the terminal block6. Cascade design7. Place a large capacitor on the V+ line (you will need it in some cases) The external input voltage depends on this 10V1000uf capacitor.8. Put a 220 ohm series resistor on all output lines to protect them and can easily drive LEDs.