Adafruit 16-Channel PWM / Servo Bonnet for Raspberry Pi
We have ✅ 4 available of the AF-3416 in our Sydney warehouse. An extra 24 units available with a short lead time.
The Adafruit 16-Channel PWM/Servo Bonnet 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 bonnets 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, with an optional solder jumper to switch output logic to 5V.
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 bonnets on one I2C bus (992 total outputs)
- 3.3V/5V Logic – Default 3.3V output with solder jumper for 5V
- 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 HAT for Raspberry Pi – HAT format mini kit
- 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 Bonnet
- 1× 2-pin terminal block
- 1× 2.1mm DC jack
- 4× 3×4 male headers
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 Bonnet (2×20 header)
The Adafruit 16-Channel PWM / Servo Bonnet for Raspberry Pi appears in the following collections:
