Micro Dual Serial Motor Controller

This tiny module can control two motors, 1 A peak each, and you can daisy-chain multiple units to control up to 62 motors with a single serial line. This product offers a low motor voltage in a compact package.

Manual PDF (292k pdf)

Pololu’s popular micro motor controller will get your robot running in a snap. The tiny module can individually control two motors, and you can daisy-chain multiple units to control up to 62 motors with one serial line. The new version provides up to 2 A to a single motor, or 1 A each to two motors. The motor supply can be as low as 2 V, making the unit a perfect match for small DC motors.

Control two 1-Amp motors

Control one 2-Amp motor
(New version only.)

Using one serial output from your microcontroller, you can independently set each motor to go forward or backward at any of 127 speeds, coast, and with the new version, brake. The micro motor controller is compatible with our serial servo controllers and serial motor controllers, so you can control an almost unlimited number of motors and servos with one serial line.

Note: The Pololu micro dual serial motor controller comes pre-assembled. However, to use the motor controller in robotics projects, you need to connect it to your own motors and robot controller.

Device specifications

For complete specifications and information on using the Pololu micro motor controller, see the user’s guide (292k pdf).

PCB size:	0.90" x 0.45"
Motor ports:	2
Speeds:	127 forward and backward, off, brake
Max. current:	two motors 1 A each, one motor 2 A
Motor voltage:	1.8-9 V
Logic voltage:	2.5-5.5 V
Data voltage:	0 and the logic voltage
PWM frequency:	two motors 600 Hz, one motor 750 Hz
Serial baud rate:	1200-19200 bps (automatically detected)