Pololu Motoron M1U550 Single Serial Motor Controller

The Pololu Motoron M1U550 Single I²C Motor Controller offers a compact solution for controlling one DC motor using a UART serial interface. Multiple Motoron controllers can be connected to the same serial bus, making it easy to expand a system with additional motors. The M1U550 supports motor supply voltages from 1.8V to 22V and can deliver continuous output currents up to 1.8A. Available with or without pre-soldered headers - select the required version before adding to your cart. The unsoldered version comes with a loose 12x1 header strip.

The Motoron M1T550 and M1U550 controllers make it easy to control a single bidirectional, brushed DC motor using an I²C or TTL serial (UART) interface, respectively. These compact (0.6″ × 0.6″) boards support motor supply voltages from 1.8 V to 22 V and can deliver continuous output currents up to 1.8 A. Multiple Motoron controllers can be configured to work on a single I²C or serial bus, allowing independent control of many motors. Unlike most of our motor drivers, the Motoron does not require any PWM outputs or timers on your microcontroller. Instead, only a single I²C or UART interface is needed regardless of how many Motorons you connect. These Motoron controllers are available in several versions with different combinations of communication interfaces and connector options:

* M1T550 (I²C):

* headers soldered

* headers included but not soldered in

* M1U550 (TTL serial) (this item):

* headers soldered

* headers included but not soldered in

For dual-channel alternatives, consider the Motoron M2T550 and M2U550. Connection Example

Features

* One motor control channel allows for control of one bidirectional brushed DC motor per Motoron

* Wide motor supply voltage range: 1.8 V to 22 V (absolute maximum)

* Maximum output current per motor: 1.8 A continuous, 5 A peak for <1 second

* Reverse-voltage protection on motor power supply (down to −20 V)

* Logic voltage range: 3.0 V to 4.9 V (5V nominal not recommended)

* Control interface: M1U550: non-inverted TTL serial (up to 250 kbps)

* Optional cyclic redundancy checking (CRC)

* Configurable motion parameters:

* Max acceleration/deceleration forward/reverse

* Starting speed forward/reverse

* Direction change delay forward/reverse

* PWM frequency: eight options available from 1 kHz to 80 kHz

* Command timeout feature stops the motor if the Motoron stops receiving commands

* Configurable automatic error response

* Motor power supply (VIN) voltage measurement

* Two status LEDs

* Motor direction indicator LEDs

* Error output for easier detection of error conditions

* Motoron Arduino library simplifies using the Motoron with an Arduino or compatible controller

* Motoron Python library simplifies using the Motoron with Python or MicroPython

* Comprehensive user’s guide

* Compact 0.6″ × 0.6″ size

Specifications

Channels 1

Model Motoron M1U550

Control interface non-inverted TTL serial (UART)

Minimum operating voltage 1.8 V

Maximum operating voltage 22 V

Continuous output current per channel 1.8 A

Peak output current per channel 5A

Minimum logic voltage 3.0 V

Maximum logic voltage 4.9 V

Reverse voltage protection? Y

Connectors soldered? Y

Size 0.6″ × 0.6″

Weight 1.9 g

Resources

* User Guide

* Arduino Library

* Python/MicroPython library

* Dimensions

* 3D Model

* Drill Guide

Package Contents

* 1x Motoron M1U550 Single Serial Motor Controller (with/without pre-soldered headers - select an option before adding to your cart)

* 1x 12-pin header (included with unsoldered version only)