Adafruit 16-Channel PWM/Servo Shield for Arduino
Overview
The Adafruit 1411 is a 16-channel, 12-bit PWM and servo shield designed for the Arduino ecosystem. It uses the PCA9685 controller over I2C to drive up to 16 servos or PWM outputs with only two pins, offloading the timing-intensive tasks from the main microcontroller.
Why Choose This Part
This shield features a dedicated PWM clock and an I2C interface, allowing for daisy-chaining up to 62 shields for a total of 992 outputs. It includes a power terminal block for external servo power and 220 ohm series resistors on all output lines to protect the driver and servos.
Applications
Getting Started
Plug the shield into an Arduino Uno or Mega and connect an external 5V to 6V power supply to the terminal block for the servos. Use the Adafruit PWM Servo Driver library in the Arduino IDE to begin addressing the 16 channels via the default I2C address 0x40.



