The PCA9685 chip is wrapped in the center of the board Power input terminal Voltage: DC5-10V power supply Communication Interface: IIC Green power indicator 16-way steering gear control In the 4 groups of 3-pin connector to facilitate the insertion of 16 servo motor (servo motor plug slightly wider than 0.1 "") The polarity of the reverse polarity is input on the terminal block Cascade design: V + line to place a large capacitor, the maximum external input voltage depends on the 10V 1000uf capacitor All PWM output lines have a 220 ohm series resistor protection and can easily drive LED Package includes: 1 X PCA9685 16 channel 12 bit PWM servo driver See more

12-bit resolution for each output - for servos, that means about 4us resolution at 60Hz update rate. 3 pin connectors in groups of 4, so you can plug in 16 servos at one time . Support using only two pins to control 16 free-running PWM outputs . 5V compliant, which means you can control it from a 3.3V microcontroller and still safely drive up to 6V outputs. PCA9685 contain an I2C-controlled PWM driver with a built-in clock.