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 module can independently control up to three motors, and multiple Motoron boards can be stacked on top of the same Raspberry Pi for projects that need to control even more motors.The M3H550 operates from 1.8 V to 22 V and can deliver continuous output currents up to 1.7 A per motor.

Versions:

• 5073-without any headers or terminal blocks included (No Connectors)
• 5072 -with headers and terminal blocks included but not soldered in (Kit)
• 5071 -with soldered stackable headers and terminal blocks (Connectors Soldered)

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 our 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.

Details for item #5073 / 5072 / 5071

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

• Motoron M3H550 with soldered stackable headers and terminal blocks
• Motoron M3H550 with headers and terminal blocks included but not soldered in
• Motoron M3H550 without any headers, terminal blocks, or mounting hardware included

5072 version of the Motoron is a kit that ships with the following connectors included but not soldered in:

• Two 1×10 stackable female headers (or one 2×10 header)
• Four 2-pin 3.5mm terminal blocks
• Four 2-pin 5mm screw terminal blocks
• One 1×25 breakaway male header (you can cut or break this into smaller header strips to install as desired)

5073 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.

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

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 4.9 V (5V nominal not recommended)
• 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

• An Arduino Micro on a breadboard using a Motoron M3H550 to control three motors.
• A Motoron M3H550 being controlled by a Raspberry Pi.

Note1: The M3H550 is not recommended for use with 5V nominal logic.

Documentations:

• Python library
• user’s guide
  

Package Includes:

• 1 x Pololu 5073 / 5072 / 5071 Motoron M3H550 Triple Motor Controller for Raspberry Pi - No Connecters / Kit / Connectors Soldered