Adafruit 16-Channel PWM / Servo Bonnet for Raspberry Pi
Raspberry Pi HAT with PCA9685 for 16 channels of 12-bit PWM servo control over I2C at up to 1.6 kHz. Compatible with Pi Zero, A+, B+, Pi 2/3/4 (requires 2×20 header). Stackable up to 62 units; Python library included.
Pinout
- 40-pin Pi GPIO (stack)Type · Signal
- 16x servo 3-pin (V+, GND, PWM)Type · Power
- External servo power terminalType · Power
| Pin | Type |
|---|---|
| 40-pin Pi GPIO (stack) | Signal |
| 16x servo 3-pin (V+, GND, PWM) | Power |
| External servo power terminal | Power |
Pin details
3 connections- 40-pin Pi GPIO (stack)Signal
- 16x servo 3-pin (V+, GND, PWM)Power
- External servo power terminalPower
Start wiring
PWM · I2C · UART · Wide input · Breakout
Confirm the data interface matches your host board.
Module pins: 16x servo 3-pin (V+, GND, PWM), External servo power terminal, 40-pin Pi GPIO (stack). Schematik maps them to your board in the app.
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