The Motoron M2U550 Dual I²C Motor Controller offers a compact solution for controlling two DC motors using a UART interface. Multiple Motoron controllers can be connected to the same serial bus, making it easy to expand a system with additional motors. The M2U550 operates from 1.8 V to 22 V and can deliver continuous output currents up to 1.6 A per motor.

Available Options:

• This version ships with header pins included but not soldered in.
• This version ships with soldered headers.

Overview:

The Motoron M2T550 and M2U550 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 1.8 V to 22 V and can deliver continuous output currents up to 1.6 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 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:

M2T550 (I²C):

• headers soldered
• headers included but not soldered in

M2U550 (TTL serial):

• headers soldered
• headers included but not soldered in
• For smaller single-channel alternatives, consider the Motoron M1T550 and M1U550.

Details for item #5081:

Typical wiring diagram for connecting a microcontroller to a Motoron M2U256/M2U550 Dual Serial Motor Controller.

The M2U550 has a non-inverted TTL serial (UART) interface, and this version ships with a 1×16 breakaway male header included but not soldered in.

Motoron M2T550/M2U550 Dual Motor Controller with included headers.

Motoron M2U550 Dual Serial Motor Controller, bottom view.

Details for item #5080:

Typical wiring diagram for connecting a microcontroller to a Motoron M2U256/M2U550 Dual Serial Motor Controller.

The M2U550 has a non-inverted TTL serial (UART) interface, and this version ships with soldered headers.

Motoron M2T550/M2U550 Dual Motor Controller (Header Pins Soldered).

Motoron M2U550 Dual Serial 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: 1.8 V to 22 V (absolute maximum)
• Maximum output current per motor: 1.6 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:
• M2T550: I²C (up to 400 kHz)
• M2U550: 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 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 or MicroPython
• Comprehensive user’s guide
• Compact 0.6″ × 0.8″ size