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I2C Motor Driver Module


Its heart is a dual channel H-bridge driver chip that can handle current up to 2A per channel, controlled by an Atmel ATmega8L which handles the I2C communication with for example an Arduino.

Both motors can be driven simultaneously while set to a different speed and direction.

It can power two brushed DC motors or one 4-wire two-phase stepper motor.

It requires a 6V to 15V power supply to power the motor and has an onboard 5V voltage regulator which can power the I2C bus (selectable by jumper). All driver lines are diode protected from back EMF.
The easy software interface is not the only easy-to-use feature because the I2C motor driver is designed to get you up and running in notime. 

It features a LED for power and four LED's to indicate if and to which direction each motor is running.

Screw terminals facilitate motor and power connections, and the GROVE system plug and I2C interface enables you to daisy-chain the driver with many other devices.


  • Grove compatible

  • I2C interface

  • Motor's speed and direction can control

  • Number of channels: 2

  • Easy to use


  • Working Voltage:  6-15VDC
  • Max Output Current per channel: 0.7A
  • Input/output voltage on I2C bus: 5V
  • Communication protocol: I2C

Interface Function:

I2C Motor Drive Interface.jpg


U5: AMS1117 IC,5v voltage regulator
U1: L298 IC,dual full bridge driver 
IC1: Atmega8 IC, Control Motor Rotate. 

NOTE: Input voltage on screw terminals is regulated to 5v and connected to I2C +5v via a jumper (J4). Remove jumper if both external power via the screw terminals and power via the I2C header is used. Use jumper if 5v should be supplied to the I2C bus.

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