Adafruit 16-Channel PWM / Servo HAT for Raspberry Pi - Mini Kit

The Adafruit 16-Channel PWM/Servo HAT adds precision servo and PWM control to your Raspberry Pi. Using the PCA9685 I2C PWM controller, it drives up to 16 servos or PWM outputs simultaneously with 12-bit resolution — completely free-running with no Pi processing overhead.

Up to 62 HATs can be stacked on a single I2C bus for control of up to 992 servos. The board works with any servo that accepts 5V power and 3.3V logic signals. This is a mini kit — headers are included and require soldering.

Key Features

• 16 PWM Channels – 12-bit resolution (4,096 steps) per output
• PCA9685 Driver – Free-running I2C-controlled PWM with built-in clock
• Stackable – Up to 62 HATs on one I2C bus (992 total outputs)
• Adjustable Frequency – PWM up to ~1.6 kHz
• Servo Connectors – 3-pin headers in groups of 4 for up to 16 servos
• Python Library – Ready-to-use library for quick setup

Also Available

• 16-Channel PWM/Servo Bonnet for Raspberry Pi – Pre-assembled bonnet format
• 16-Channel PWM/Servo Driver Breakout – Breadboard-friendly breakout

Compatibility

• Raspberry Pi Zero / Zero W
• Raspberry Pi A+ / B+
• Raspberry Pi 2 / 3 / 3B+ / 4
• Any Pi with 2×20 GPIO header

Package Contents

• 1× Adafruit 16-Channel PWM/Servo HAT
• 1× 2-pin terminal block
• 4× 3×4 male headers
• 1× 2×20 socket header

Specifications

• Driver Chip – PCA9685
• Channels – 16
• PWM Resolution – 12-bit (4,096 steps)
• Max PWM Frequency – ~1.6 kHz
• Interface – I2C
• Form Factor – Raspberry Pi HAT (2×20 header)