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.
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 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.
Arduino 5 V logic rail required with SDA/SCL/GND for shield control.
Common ground required with SDA/SCL and 5 V for shield control.
DC motor / stepper motor output port M1; Adafruit library docs select motor ports M1, M2, M3 or M4.
DC motor / stepper motor output port M2; Adafruit library docs select motor ports M1, M2, M3 or M4.
DC motor / stepper motor output port M3; Adafruit library docs select motor ports M1, M2, M3 or M4.
DC motor / stepper motor output port M4; Adafruit library docs select motor ports M1, M2, M3 or M4.
One of two 3-pin hobby servo connections; source says two connections for 5V hobby servos.
Second 3-pin hobby servo connection; source says two connections for 5V hobby servos.
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.
| Pin | Position | Type | Function | Voltage |
|---|---|---|---|---|
| SDA | signal | 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 | signal | 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 | motor output | 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 | motor output | 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 | motor output | 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 | motor output | 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 | servo header | 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 | servo header | Second 3-pin hobby servo connection; source says two connections for 5V hobby servos. | 5V hobby servo connection per source text. | |
| POWER | power input | 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. |
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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