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Motoron M3H550 Triple Motor Controller for Raspberry Pi (Connectors Soldered)

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Motoron M3H550 Triple Motor Controller for Raspberry Pi (Connectors Soldered)

SKU: POLOLU-5071 Brand: Pololu

The Motoron M3H550 Triple Motor Controller makes it easy to control DC motors from a Raspberry Pi (Model B+ or newer) through an I²C interface. Each...

$50.90 AUD, inc GST

$46.27 AUD, exc GST

Available with a lead time
Expect dispatch between Nov 27 and Dec 02

Quantity Discounts:

6-12 $44.42 (exc GST)
12+ $43.04 (exc GST)

The Motoron M3H550 add-on board makes it easy to control up to three bidirectional, brushed DC motors with a compatible Raspberry Pi (Model B+ or newer). It operates from 1.8 V to 22 V and can deliver continuous output currents up to 1.7 A per motor. The M3H550 is designed to stack on top of a Raspberry Pi (Model B+ or newer), similar to a HAT (Hardware Attached on Top), and multiple Motoron controllers can be stacked on top of each other, allowing independent control of many motors. Unlike most of Pololu's motor drivers and motor driver expansion boards for Raspberry Pi, the Motoron does not require any PWM outputs on your Raspberry Pi. Instead, the Raspberry Pi communicates with the Motoron using I²C, so only two GPIO pins are needed regardless of how many Motorons you connect.

Three M3H550 versions are available to provide different options for the through-hole connectors:

For applications using an Arduino or compatible controller, consider the Motoron M3S550 instead (also available with different connector options).

Details for item #5071

Motoron M3H550 Triple Motor Controller for Raspberry Pi (Connectors Soldered).

A Motoron M3H550 being controlled by a Raspberry Pi.

This version of the Motoron M3H550 ships with soldered stackable headers and terminal blocks. It includes a set of two M2.5 standoffs (11 mm length), screws, and nuts that can be used to secure the board at the proper height for the GPIO connector.

Motoron M3H256 or M3H550 Triple Motor Controller for Raspberry Pi pinout.

Features and specifications

Three motor control channels allow for independent control of up to three bidirectional brushed DC motors per Motoron
Wide operating voltage range: 1.8 V to 22 V (absolute maximum)
Maximum output current per motor: 1.7 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 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 Raspberry Pi stops communicating
Configurable automatic error response
Motor power supply (VIN) voltage measurement
Optional pins make it easy to power the Raspberry Pi from reverse-protected motor power through an external regulator (not included)
Two status LEDs
Motor direction indicator LEDs
Motoron Python library simplifies using the Motoron with Python or MicroPython
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

Control interface: I²C	M1T550	M2T550	M1T256	M2T256
Control interface: UART	M1U550	M2U550	M1U256	M2U256
Motor channels:	1 (single)	2 (dual)	1 (single)	2 (dual)
Minimum input voltage:	1.8 V		4.5 V
Absolute max input 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
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

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 input voltage:	1.8 V	4.5 V	6.5 V
Absolute max input 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
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

Dimensions

Size:	32.5 mm × 56 mm
Weight:	14 g¹

General specifications

Channels:	3
Model:	Motoron M3H550
Control interface:	I²C
Minimum operating voltage:	1.8 V
Maximum operating voltage:	22 V
Continuous output current per channel:	1.7 A
Peak output current per channel:	5 A
Reverse voltage protection?:	Y²
Connectors soldered?:	Y

Identifying markings

PCB dev codes:	mc3h44a
Other PCB markings:	0J13969

Notes:

1: Not including standoffs.
2: Reverse voltage protection only works up to 20 V.

Documentation and other information

Pololu Motoron Motor Controller User’s Guide

User’s manual for the Pololu Motoron Motor Controllers.

File downloads

Dimension diagram of the Motoron M3H550 Triple Motor Controller for Raspberry Pi (722k pdf)
3D model of the Motoron M3H550 Triple Motor Controller for Raspberry Pi (12MB step)
Drill guide for the Motoron M3H550 Triple Motor Controller for Raspberry Pi (38k dxf)

This DXF drawing shows the locations of all of the board’s holes.

Recommended links

Motoron Motor Controller Python library for Python/MicroPython

This product is listed in:

Breakouts & Modules>Motor Drivers & Controllers>Brushed DC Motor Controllers

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