Royal Mail Non-UK: We recommend UPS/DHL for orders outside the UK. More details
Royal Mail Non-UK: We recommend UPS/DHL for orders outside the UK. More details

Motoron Dual Motor Controller

by Pololu

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 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 two versions:

  • M2T256 (I²C)
  • M2U256 (TTL serial)

The M2T256 has an I²C interface, and ships with a 1×16 breakaway male header included but not soldered in.

The M2U256 has a non-inverted TTL serial (UART) interface, and ships with a 1×16 breakaway male header included but not soldered in.

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 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 getting started using the Motoron with an Arduino or compatible controller
  • Comprehensive user’s guide

Resources