Adafruit DC & Stepper Motor Bonnet for Raspberry Pi

Adafruit, MIT

Let your robotic dreams come true with the new DC+Stepper Motor Bonnet from Adafruit. This Raspberry Pi add-on is perfect for any motion project as it can drive up to 4 DC or 2 Stepper motors with full PWM speed control.

SDA
I2C data line used by the Motor Bonnet/HAT PWM driver; Adafruit states only SDA and SCL GPIO pins are required to drive the motors.
Type · signalVoltage · Raspberry Pi 3.3 V logic when connected through the Pi header
SCL
I2C clock line used by the Motor Bonnet/HAT PWM driver; Adafruit states only SDA and SCL GPIO pins are required to drive the motors.
Type · signalVoltage · Raspberry Pi 3.3 V logic when connected through the Pi header
3.3V
3.3 V rail required when connecting the HAT/Bonnet off-Pi via jumpers, alongside GND, SDA and SCL.
Type · powerVoltage · 3.3 V
GND
Common ground required when connecting the HAT/Bonnet off-Pi via jumpers and shared return for motor/control power.
Type · groundVoltage · 0 V
VM / motor power terminal
Polarity-protected 2-pin terminal block for external motor power; Adafruit specifies external 5-12 VDC power on the Bonnet product page and 4.5-13.5 VDC motor drive range in the shared guide.

Start wiring

I2C · I2S · Raspberry Pi 3.3 V logic when connected through the Pi header · 3.3 V

Confirm the data interface matches your host board.

Module pins: 3.3V, VM / motor power terminal, GND, SDA, SCL. Schematik maps them to your board in the app.

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Pin	Type	Function	Voltage
SDA	signal	I2C data line used by the Motor Bonnet/HAT PWM driver; Adafruit states only SDA and SCL GPIO pins are required to drive the motors.	Raspberry Pi 3.3 V logic when connected through the Pi header
SCL	signal	I2C clock line used by the Motor Bonnet/HAT PWM driver; Adafruit states only SDA and SCL GPIO pins are required to drive the motors.	Raspberry Pi 3.3 V logic when connected through the Pi header
3.3V	power	3.3 V rail required when connecting the HAT/Bonnet off-Pi via jumpers, alongside GND, SDA and SCL.	3.3 V
GND	ground	Common ground required when connecting the HAT/Bonnet off-Pi via jumpers and shared return for motor/control power.	0 V
VM / motor power terminal	power	Polarity-protected 2-pin terminal block for external motor power; Adafruit specifies external 5-12 VDC power on the Bonnet product page and 4.5-13.5 VDC motor drive range in the shared guide.	5-12 VDC external motor power on product page; guide states motor drive range 4.5-13.5 VDC
M1	motor output	Motor terminal block output channel for one DC motor winding/output pair, driven by the onboard TB6612 motor driver.	Motor supply dependent, within the Adafruit-stated motor drive range
M2	motor output	Motor terminal block output channel for one DC motor winding/output pair, or one half of a stepper motor connection.	Motor supply dependent, within the Adafruit-stated motor drive range
M3	motor output	Motor terminal block output channel for one DC motor winding/output pair, or one half of a stepper motor connection.	Motor supply dependent, within the Adafruit-stated motor drive range
M4	motor output	Motor terminal block output channel for one DC motor winding/output pair, driven by the onboard TB6612 motor driver.	Motor supply dependent, within the Adafruit-stated motor drive range
STEMMA QT	connector	STEMMA QT connector on the I2C lines for plug-and-play usage, as stated on the Adafruit product page.	I2C connector, logic/power follows board connection context