Motoron M1U256 Single Serial Motor Controller (Header Pins Soldered)

Pololu item #: 5062
Brand: Pololu
Status: Rationed (Active and Preferred) 

Price break Unit price (US$)
1 23.95
5 22.03


backorders allowed

The Motoron M1U256 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 M1U256 operates from 4.5 V to 48 V and can deliver continuous output currents up to 2.2 A. This version ships with soldered headers.

Alternatives available with variations in these parameter(s): control interface header pins soldered? Select variant…

 Description Specs (13) Pictures (8) Resources (6) FAQs (0) On the blog (0) 

Overview

The Motoron M1T256 and M1U256 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 operate from 4.5 V to 48 V and can deliver continuous output currents up to 2.2 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:

For dual-channel alternatives, consider the Motoron M2T256 and M2U256.

Details for item #5062

Typical wiring diagram for connecting a microcontroller to a Motoron M1U256 Single Serial Motor Controller.

The M1U256 has a TTL serial (UART) interface, and this version ships with soldered headers.

Motoron M1T256/M1U256 Single Motor Controller (Header Pins Soldered).

Motoron M1U256 Single Serial Motor Controller, bottom view.

Features and specifications

  • One motor control channel allows for control of one bidirectional brushed DC motor per Motoron
  • Wide operating voltage range: 4.5 V to 48 V (absolute maximum)
    • Recommended maximum nominal battery voltage is approximately 36 V
  • Maximum output current per motor: 2.2 A continuous, 6.4 A peak for <1 second
  • Reverse-voltage protection on motor power supply (down to -40 V)
  • Logic voltage range: 3.0 V to 5.5 V
  • Control interface:
    • M1T256: I²C (up to 400 kHz)
    • M1U256: 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 code
  • Comprehensive user’s guide
  • Compact 0.6″ × 0.6″ size

A Raspberry Pi Pico on a breadboard using a Motoron M1T256/M1U256 Motor Controller to control a motor.

The Motoron family

The tables below list the members of the Motoron family and show the key differences among them. Each type is available in several versions to provide different options for the through-hole connectors: they can be purchased as an assembled product with connectors soldered in, as a kit with connectors included but not soldered in, or (for Arduino and Raspberry Pi expansions) as a standalone board without connectors.

Motoron motor controllers
micro versions

M1T256

M1U256

M2T256

M2U256
Control interface: I²C UART serial I²C UART serial
Motor channels: 1 (single) 2 (dual)
Absolute max
input voltage:
48 V 48 V
Recommended max
nominal battery voltage:
36 V 36 V
Max continuous
current per channel:
2.2 A 1.8 A
Available versions:
Motoron motor controllers
Arduino and Raspberry Pi form factor versions

M3S256



M3H256

M2S24v14



M2H24v14

M2S24v16



M2H24v16

M2S18v18



M2H18v18

M2S18v20



M2H18v20
Control interface: I²C
Motor channels: 3 (triple) 2 (dual)
Absolute max
input voltage:
48 V 40 V 30 V
Recommended max
nominal battery voltage:
36 V 28 V 18 V
Max continuous
current per channel:
2 A 14 A 16 A 18 A 20 A
Available versions
for Arduino:
M3S256 M2S24v14 M2S24v16 M2S18v18 M2S18v20
Available versions
for Raspberry Pi:
M3H256 M2H24v14 M2H24v16 M2H18v18 M2H18v20

Related Products

Motoron M1T256 Single I²C Motor Controller (Header Pins Soldered)
Motoron M1T256 Single I²C Motor Controller
Motoron M1U256 Single Serial Motor Controller
0.100" (2.54 mm) Breakaway Male Header: 1×40-Pin, Straight, Black

Related Categories

Motoron M1x256 Single Motor Controllers
Motoron M2x256 Dual Motor Controllers
Motoron Motor Controllers
Motors and Gearboxes
Brushed DC Motor Drivers
Voltage Regulators
Premium Jumper Wires
Wires with Pre-Crimped Terminals
Solderless Breadboards
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