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Motoron M3S256 Triple Motor Controller Shield for Arduino (No Connectors)

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Pololu item #: 5032
Brand: Pololu
Status: Active and Preferred 

The Motoron M3S256 Triple Motor Controller Shield for Arduino makes it easy to control DC motors from an Arduino or Arduino-compatible board through an I²C interface. Each module can independently control up to three motors, and multiple shields can be stacked on top of the same Arduino for projects that need to control even more motors. The M3S256 supports motor supply voltages from 4.5 V to 48 V and can deliver continuous output currents up to 2 A per motor. This version is just the motor controller by itself, without any header pins or terminal blocks included.

Compare all products in Motoron M3S256 Triple Motor Controller Shield for Arduino.

Pictures

Motoron M3S256 Triple Motor Controller Shield for Arduino (No Connectors).

Motoron M3S256 Triple Motor Controller Shield for Arduino, top view.

Motoron M3S256 Triple Motor Controller Shield for Arduino, bottom view with dimensions.

Motoron M3S256 Triple Motor Controller Shield for Arduino (Connectors Soldered).

Motoron M3S256 Triple Motor Controller Shield for Arduino (Connectors Soldered).

Motoron M3S256 Triple Motor Controller Shield for Arduino (Connectors Soldered), top view.

Motoron M3S256 shield being controlled by an Arduino Uno.

Three Motoron M3S256 shields being controlled by an Arduino Uno.

Three Motoron M3S256 or M3S550 shields attached to an Arduino Uno, showing the spacing of the 3.5 mm terminal blocks.

Motoron M3S256 Triple Motor Controller Shield Kit for Arduino, assembled with the larger (5mm-pitch) blue terminal blocks and male headers.

A Raspberry Pi Pico on a breadboard using a Motoron M3S256 shield to control three motors.

Using the Motoron M3S256 or M3S550 Triple Motor Controller Shield with an Arduino.

Motoron M3S256 or M3S550 Triple Motor Controller Shield pinout.

Overview

The Motoron M3S256 shield makes it easy to control up to three bidirectional, brushed DC motors with an Arduino or compatible board, such as the A-Star 32U4 Prime. It supports motor supply voltages from 4.5 V to 48 V and can deliver continuous output currents up to 2 A per motor. Multiple Motoron controllers can be stacked on top of each other, allowing independent control of many motors. Unlike most of our motor drivers and motor driver shields, the Motoron does not require any PWM outputs or timers on your Arduino. Instead, the Arduino communicates with the Motoron using I²C, so only two I/O lines are needed regardless of how many Motorons you connect.

Three M3S256 versions are available to provide different options for the through-hole connectors:

• Motoron M3S256 with soldered stackable headers and terminal blocks
• Motoron M3S256 with headers and terminal blocks included but not soldered in
• Motoron M3S256 without any headers or terminal blocks included

For applications using a Raspberry Pi, consider the Motoron M3H256 instead (also available with different connector options).

Details for item #5032

Motoron M3S256 Triple Motor Controller Shield for Arduino (No Connectors).

This Motoron version is just the assembled PCB module as shown above, with no connectors included. This version is intended for those who mostly want to solder wires directly to the board or use different connectors from those included with other versions. We have a variety of connectors available separately.

A Raspberry Pi Pico on a breadboard using a Motoron M3S256 shield to control three motors.

Motoron M3S256 shield being controlled by an Arduino Uno.

Motoron M3S256 or M3S550 Triple Motor Controller Shield pinout.

Features and specifications

• Three motor control channels allow for independent control of up to three bidirectional brushed DC motors per Motoron
• Wide motor supply voltage range: 4.5 V to 48 V (absolute maximum)
  • Recommended maximum nominal battery voltage is approximately 36 V
• Maximum output current per motor: 2.0 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: I²C
• I²C clock speed: up to 400 kHz
• 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
• Optional pins make it easy to power the Arduino from reverse-protected motor power, either directly or through an external regulator (not included)
• Two status LEDs
• Motor direction indicator LEDs
• Motoron Arduino library simplifies getting started using the Motoron with an Arduino or compatible controller
• Comprehensive user’s guide

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
	M1T550 M1U550	M2T550 M2U550	M1T256 M1U256	M2T256 M2U256
Control interface:	I²C or UART serial
Motor channels:	1 (single)	2 (dual)	1 (single)	2 (dual)
Minimum motor supply voltage:	1.8 V		4.5 V
Absolute max motor supply voltage:	22 V		48 V
Recommended max nominal battery voltage:	16 V		36 V
Max continuous current per channel:	1.8 A	1.6 A	2.2 A	1.8 A
Logic voltage range:	3.0 V to 4.9 V(1)		3.0 V to 5.5 V
Current sensing/limiting:
Available versions with I²C:	headers soldered headers included	headers soldered headers included	headers soldered headers included	headers soldered headers included
Available verions with UART serial:	headers soldered headers included	headers soldered headers included	headers soldered headers included	headers soldered headers included
Price:	$12.49 – $14.49	$15.95 – $17.95	$16.95 – $18.95	$23.95 – $25.95
1 The M1x550 and M2x550 are not recommended for use with 5V nominal logic.

Motoron motor controllers Arduino and Raspberry Pi form factor versions
	M3S550 M3H550	M3S256 M3H256	M2S24v14 M2H24v14	M2S24v16 M2H24v16	M2S18v18 M2H18v18	M2S18v20 M2H18v20
Control interface:	I²C
Motor channels:	3 (triple)		2 (dual)
Minimum motor supply voltage:	1.8 V	4.5 V	6.5 V
Absolute max motor supply voltage:	22 V	48 V	40 V		30 V
Recommended max nominal battery voltage:	16 V	36 V	28 V		18 V
Max continuous current per channel:	1.7 A	2 A	14 A	16 A	18 A	20 A
Logic voltage range:	M3S550 3.1 V to 5.5 V	3.0 V to 5.5 V	3.0 V to 5.5 V
	M3H550 3.0 V to 4.9 V(1)
Current sensing/limiting:
Available versions for Arduino:	M3S550 assembled kit board only	M3S256 assembled kit board only	M2S24v14 assembled kit board only	M2S24v16 assembled kit board only	M2S18v18 assembled kit board only	M2S18v20 assembled kit board only
Available versions for Raspberry Pi:	M3H550 assembled kit board only	M3H256 assembled kit board only	M2H24v14 assembled kit board only	M2H24v16 assembled kit board only	M2H18v18 assembled kit board only	M2H18v20 assembled kit board only
Price:	$20.95 – $30.95	$34.95 – $44.95	$59.95 – $69.95	$79.95 – $89.95	$59.95 – $69.95	$95.95 – $104.95
1 The M3H550 is not recommended for use with 5V nominal logic.

Frequently-asked questions

No FAQs available.

On the blog

• 

  New product: Motoron M3S256 Triple Motor Controller Shield

  by Kevin - 31 March 2022

  We’re excited to announce the launch of our new Motoron M3S256 Triple Motor Controller Shield! This I²C motor controller is designed to plug into...