Use the Me Dual Motor Driver with the Robot Griper, and you can control the Gripper with our Orion board. Below is a picture which shows the connection:
Since the Orion Board is based on Arduino, You can also use the Arduino board if you can figure out the connections. And yes, the Me Dual DC motor Driver is needed to connect the gripper.
Here is a link with info for me Dual DC motor Driver to you for reference: http://learn.makeblock.com/en/me-dual-motor-driver
