Adafruit DC & Stepper Motor Bonnet for Raspberry Pi

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

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

Full-Bridge Motor Driver Dual - L298N visual preview

Related groups

4 groups

DC motors

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.

Motors & actuators · DC & gear motors · 135 parts

Pumps & valves

Solenoid valves (DN15/DN20 12V), 6V pneumatic air valves, push-pull and lock-style solenoids, 5V electromagnets (3–35kg holding force), 6V electric push rods (10–100mm stroke), peristaltic dosing pumps and submersible water pumps.

Motors & actuators · Pumps & solenoids · 41 parts

Mechanics

Robot chassis (2WD miniQ, 4WD mecanum, 6WD outdoor), mecanum wheels (48–97mm), brass hex hubs (4–6mm), shaft couplers, 2GT timing pulleys and uArm robotic arms.

Motors & actuators · Robotics & mechanics · 141 parts

Servos

9g micros and clutch PWM servos, IP67 metal servos to 35KG, and ST/SC/CF serial bus servos (2.3kg to 120kg.cm at 24V) — protocol matters as much as torque rating here.

Motors & actuators · Servos · 99 parts

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

Pinout

Start wiring

DC motors

Pumps & valves

Mechanics

Servos