Logical pinout · physical placement not verified

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 · I2CVoltage · 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 · I2CVoltage · 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
VMmotor 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.
Type · PowerVoltage · 5-12 VDC external motor power on product page; guide states motor drive range 4.5-13.5 VDC
M1
Motor terminal block output channel for one DC motor winding/output pair, driven by the onboard TB6612 motor driver.
Type · UnknownVoltage · Motor supply dependent, within the Adafruit-stated motor drive range
M2
Motor terminal block output channel for one DC motor winding/output pair, or one half of a stepper motor connection.
Type · UnknownVoltage · Motor supply dependent, within the Adafruit-stated motor drive range
M3
Motor terminal block output channel for one DC motor winding/output pair, or one half of a stepper motor connection.
Type · UnknownVoltage · Motor supply dependent, within the Adafruit-stated motor drive range
M4
Motor terminal block output channel for one DC motor winding/output pair, driven by the onboard TB6612 motor driver.
Type · UnknownVoltage · Motor supply dependent, within the Adafruit-stated motor drive range
STEMMA QT
STEMMA QT connector on the I2C lines for plug-and-play usage, as stated on the Adafruit product page.
Type · UnknownVoltage · I2C connector, logic/power follows board connection context

Pin	Type	Function	Voltage
SDA	I2C	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	I2C	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
VMmotor 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	Unknown	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	Unknown	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	Unknown	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	Unknown	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	Unknown	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

Logical pinout · physical placement not verified

Pin details

10 connections

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.
I2CVoltage · 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.
I2CVoltage · 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.
PowerVoltage · 3.3 V
GND
Common ground required when connecting the HAT/Bonnet off-Pi via jumpers and shared return for motor/control power.
GroundVoltage · 0 V
VMmotor 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.
PowerVoltage · 5-12 VDC external motor power on product page; guide states motor drive range 4.5-13.5 VDC
M1
Motor terminal block output channel for one DC motor winding/output pair, driven by the onboard TB6612 motor driver.
UnknownVoltage · Motor supply dependent, within the Adafruit-stated motor drive range
M2
Motor terminal block output channel for one DC motor winding/output pair, or one half of a stepper motor connection.
UnknownVoltage · Motor supply dependent, within the Adafruit-stated motor drive range
M3
Motor terminal block output channel for one DC motor winding/output pair, or one half of a stepper motor connection.
UnknownVoltage · Motor supply dependent, within the Adafruit-stated motor drive range
M4
Motor terminal block output channel for one DC motor winding/output pair, driven by the onboard TB6612 motor driver.
UnknownVoltage · Motor supply dependent, within the Adafruit-stated motor drive range
STEMMA QT
STEMMA QT connector on the I2C lines for plug-and-play usage, as stated on the Adafruit product page.
UnknownVoltage · I2C connector, logic/power follows board connection context

Start wiring

PWM · I2C · UART · Wide input · Breakout

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.

Motor drivers

76 other options

H-bridge breakouts from 1A to 43A (DRV8871, TB6612FNG, BTS7960), stepper drivers (A4988, TMC260, TB6600), I2C servo/solenoid controllers, and Pi/Arduino shields — sized by current and protocol.

View all 76

Related groups

4 groups

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N20 micros in 1:50–1:298 ratios, 6V TT gearbox motors (120:1, 160RPM), 12V quadrature encoder gearmotors up to 45kg.cm, plus coreless micros, vibration discs, USB fans and a few outlier brushless motors.

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Pumps & valves

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Motors & actuators · Pumps & solenoids · 41 parts

Mechanics

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Motors & actuators · Robotics & mechanics · 144 parts

Servos

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Motors & actuators · Servos · 100 parts

Pinout