Adafruit (PID 815) 16-Channel 12-bit PWM/Servo Driver - I2C interface - PCA9685 PCA9685 PWM driver 5V compliant This product comes with a fully tested and assembled breakout as well as 4 pieces of 3x4 male straight header (for servo/LED plugs), a 2-pin terminal block (for power) and a piece of 6-pin 0.1" header (to plug into a breadboard). A little light soldering will be required to assemble and customize the board by attaching the desired headers but it is a 15 minute task that even a beginner can do. Includes Breakout and headers Some soldering required