Motoron M2T256 Dual I²C Motor Controller (Header Pins Soldered)

SKU: POLOLU-5064 Brand: Pololu
The Motoron M2T256 Dual I²C Motor Controller offers a compact solution for controlling two DC motors using an I²C interface. Multiple Motoron controllers...
$44.40 AUD, inc GST
$40.36 AUD, exc GST

Available with a lead time
Expect dispatch between May 30 and Jun 03

Quantity Discounts:

  • 10-25 $39.15 (exc GST)
  • 25+ $38.35 (exc GST)
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0 from local stock, 1 supplier stock; your order will dispatch between Dec 1 to Dec 10. And yes, stock levels and lead times are accurate!

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The Motoron M2T256 and M2U256 controllers make it easy to control two bidirectional, brushed DC motors using an I²C or TTL serial (UART) interface, respectively. These compact (0.6" × 0.8") boards operate from 4.5 V to 48 V and can deliver continuous output currents up to 1.8 A per motor. Multiple Motoron controllers can be configured to work on a single I²C or serial bus, allowing independent control of many motors. Unlike most of Pololu's 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:

Details for item #5064

Typical wiring diagram for connecting a microcontroller to a Motoron M2T256 Dual I²C Motor Controller.

The M2T256 has an I²C interface, and this version ships with soldered headers.

Motoron M2T256/M2U256 Dual Motor Controller (Header Pins Soldered).

Motoron M2T256 Dual I²C Motor Controller, bottom view.

Features and specifications

  • Two motor control channels allow for independent control of up to two bidirectional brushed DC motors 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: 1.8 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:
    • M2T256: I²C (up to 400 kHz)
    • M2U256: 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 motors if the Arduino stops functioning
  • 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 getting started using the Motoron with an Arduino or compatible controller
  • Comprehensive user’s guide

A Raspberry Pi Pico on a breadboard using a Motoron M2T256/M2U256 Dual Motor Controller to control two motors.

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

M2T256

M2U256
Control interface: I²C UART serial
Motor channels: 2 (dual)
Absolute max
input voltage:
48 V
Recommended max
nominal battery voltage:
36 V
Max continuous
current per channel:
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

Dimensions

Size: 0.6" x 0.8"
Weight: 2.5 g

General specifications

Channels: 2
Model: Motoron M2T256
Control interface: I²C
Minimum operating voltage: 4.5 V
Maximum operating voltage: 48 V1
Continuous output current per channel: 1.8 A
Peak output current per channel: 6.4 A
Reverse voltage protection?: Y2
Header pins soldered?: Y

Identifying markings

PCB dev codes: mc2u42a
Other PCB markings: 0J13891

Notes:

1
Absolute maximum; higher voltages can permanently destroy the motor drivers. Recommended maximum nominal battery voltage is approximately 36 V, which leaves a safety margin for ripple voltage on the supply line.
2
Note: Reverse voltage protection only works up to 40 V.

Documentation and other information

File downloads

Recommended links

Product Comments

Exact shipping can be calculated on the view cart page (no login required).

Products that weigh more than 0.5 KG may cost more than what's shown (for example, test equipment, machines, >500mL liquids, etc).

We deliver Australia-wide with these options (depends on the final destination - you can get a quote on the view cart page):

  • $3+ for Stamped Mail (typically 10+ business days, not tracked, only available on selected small items)
  • $6+ for Standard Post (typically 6+ business days, tracked)
  • $10+ for Express Post (typically 2+ business days, tracked)
  • Pickup - Free! Only available to customers who live in the Newcastle region (must order online and only pickup after we email to notify you the order is ready). Orders placed after 2PM may not be ready until the following business day.

Non-metro addresses in WA, NT, SA & TAS can take 2+ days in addition to the above information.

Some batteries (such as LiPo) can't be shipped by Air. During checkout, Express Post and International Methods will not be an option if you have that type of battery in your shopping cart.

International Orders - the following rates are for New Zealand and will vary for other countries:

  • $11+ for Pack and Track (3+ days, tracked)
  • $16+ for Express International (2-5 days, tracked)

If you order lots of gear, the postage amount will increase based on the weight of your order.

Our physical address (here's a PDF which includes other key business details):

Unit 18, 132 Garden Grove Parade
Adamstown
NSW, 2289
Australia

Take a look at our customer service page if you have other questions such as "do we do purchase orders" (yes!) or "are prices GST inclusive" (yes they are!). We're here to help - get in touch with us to talk shop.

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