Motor/Stepper/Servo Shield for Arduino v3 Kit
Arduino shield that drives up to 4 DC motors or 2 bipolar steppers using TB6612 MOSFET drivers at 1.2A continuous (3A peak, ~20ms) per channel, plus two hobby servo headers. Communicates over I2C, freeing all Arduino PWM pins.
Pinout
- SDA
I2C data line used by the shield PWM/motor controller; Adafruit states only SDA and SCL plus 5V and GND are required to drive the motors.
Type · I2C - SCL
I2C clock line used by the shield PWM/motor controller; Adafruit states only SDA and SCL plus 5V and GND are required to drive the motors.
Type · I2C - 5V
Arduino 5 V logic rail required with SDA/SCL/GND for shield control.
Type · PowerVoltage · 5V logic rail, source states 5v is required with SDA/SCL/GND. - GND
Common ground required with SDA/SCL and 5 V for shield control.
Type · GroundVoltage · 0V reference - M1
DC motor / stepper motor output port M1; Adafruit library docs select motor ports M1, M2, M3 or M4.
Type · UnknownVoltage · Motor supply, source FAQ states 5-12VDC power via POWER terminal blocks or Arduino DC barrel/VIN jumper. - M2
DC motor / stepper motor output port M2; Adafruit library docs select motor ports M1, M2, M3 or M4.
Type · UnknownVoltage · Motor supply, source FAQ states 5-12VDC power via POWER terminal blocks or Arduino DC barrel/VIN jumper. - M3
DC motor / stepper motor output port M3; Adafruit library docs select motor ports M1, M2, M3 or M4.
Type · UnknownVoltage · Motor supply, source FAQ states 5-12VDC power via POWER terminal blocks or Arduino DC barrel/VIN jumper. - M4
DC motor / stepper motor output port M4; Adafruit library docs select motor ports M1, M2, M3 or M4.
Type · UnknownVoltage · Motor supply, source FAQ states 5-12VDC power via POWER terminal blocks or Arduino DC barrel/VIN jumper. - SERVO 1
One of two 3-pin hobby servo connections; source says two connections for 5V hobby servos.
Type · UnknownVoltage · 5V hobby servo connection per source text. - SERVO 2
Second 3-pin hobby servo connection; source says two connections for 5V hobby servos.
Type · UnknownVoltage · 5V hobby servo connection per source text. - POWER
Motor power input through the shield POWER terminal block; source FAQ says connect 5-12VDC power here or through Arduino DC barrel jack and VIN jumper.
Type · PowerVoltage · 5-12VDC motor power per source FAQ.
| Pin | Type | Function | Voltage |
|---|---|---|---|
| SDA | I2C | I2C data line used by the shield PWM/motor controller; Adafruit states only SDA and SCL plus 5V and GND are required to drive the motors. | |
| SCL | I2C | I2C clock line used by the shield PWM/motor controller; Adafruit states only SDA and SCL plus 5V and GND are required to drive the motors. | |
| 5V | Power | Arduino 5 V logic rail required with SDA/SCL/GND for shield control. | 5V logic rail, source states 5v is required with SDA/SCL/GND. |
| GND | Ground | Common ground required with SDA/SCL and 5 V for shield control. | 0V reference |
| M1 | Unknown | DC motor / stepper motor output port M1; Adafruit library docs select motor ports M1, M2, M3 or M4. | Motor supply, source FAQ states 5-12VDC power via POWER terminal blocks or Arduino DC barrel/VIN jumper. |
| M2 | Unknown | DC motor / stepper motor output port M2; Adafruit library docs select motor ports M1, M2, M3 or M4. | Motor supply, source FAQ states 5-12VDC power via POWER terminal blocks or Arduino DC barrel/VIN jumper. |
| M3 | Unknown | DC motor / stepper motor output port M3; Adafruit library docs select motor ports M1, M2, M3 or M4. | Motor supply, source FAQ states 5-12VDC power via POWER terminal blocks or Arduino DC barrel/VIN jumper. |
| M4 | Unknown | DC motor / stepper motor output port M4; Adafruit library docs select motor ports M1, M2, M3 or M4. | Motor supply, source FAQ states 5-12VDC power via POWER terminal blocks or Arduino DC barrel/VIN jumper. |
| SERVO 1 | Unknown | One of two 3-pin hobby servo connections; source says two connections for 5V hobby servos. | 5V hobby servo connection per source text. |
| SERVO 2 | Unknown | Second 3-pin hobby servo connection; source says two connections for 5V hobby servos. | 5V hobby servo connection per source text. |
| POWER | Power | Motor power input through the shield POWER terminal block; source FAQ says connect 5-12VDC power here or through Arduino DC barrel jack and VIN jumper. | 5-12VDC motor power per source FAQ. |
Pin details
11 connections- SDA
I2C data line used by the shield PWM/motor controller; Adafruit states only SDA and SCL plus 5V and GND are required to drive the motors.
I2C - SCL
I2C clock line used by the shield PWM/motor controller; Adafruit states only SDA and SCL plus 5V and GND are required to drive the motors.
I2C - 5V
Arduino 5 V logic rail required with SDA/SCL/GND for shield control.
PowerVoltage · 5V logic rail, source states 5v is required with SDA/SCL/GND. - GND
Common ground required with SDA/SCL and 5 V for shield control.
GroundVoltage · 0V reference - M1
DC motor / stepper motor output port M1; Adafruit library docs select motor ports M1, M2, M3 or M4.
UnknownVoltage · Motor supply, source FAQ states 5-12VDC power via POWER terminal blocks or Arduino DC barrel/VIN jumper. - M2
DC motor / stepper motor output port M2; Adafruit library docs select motor ports M1, M2, M3 or M4.
UnknownVoltage · Motor supply, source FAQ states 5-12VDC power via POWER terminal blocks or Arduino DC barrel/VIN jumper. - M3
DC motor / stepper motor output port M3; Adafruit library docs select motor ports M1, M2, M3 or M4.
UnknownVoltage · Motor supply, source FAQ states 5-12VDC power via POWER terminal blocks or Arduino DC barrel/VIN jumper. - M4
DC motor / stepper motor output port M4; Adafruit library docs select motor ports M1, M2, M3 or M4.
UnknownVoltage · Motor supply, source FAQ states 5-12VDC power via POWER terminal blocks or Arduino DC barrel/VIN jumper. - SERVO 1
One of two 3-pin hobby servo connections; source says two connections for 5V hobby servos.
UnknownVoltage · 5V hobby servo connection per source text. - SERVO 2
Second 3-pin hobby servo connection; source says two connections for 5V hobby servos.
UnknownVoltage · 5V hobby servo connection per source text. - POWER
Motor power input through the shield POWER terminal block; source FAQ says connect 5-12VDC power here or through Arduino DC barrel jack and VIN jumper.
PowerVoltage · 5-12VDC motor power per source FAQ.
Start wiring
PWM · I2C · UART · Wide input · Breakout
Confirm the data interface matches your host board.
Module pins: 5V, GND, SDA, SCL. Schematik maps them to your board in the app.
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