I've got a new project I'm trying to do, a 4 wheeled chaise with a 6 servo arm and grip controlled by IR. My pre thought was the drive the wheels with the CHI035A High Powered Project Board and have the IR input through this board, and then run the servos with the SD21 servo board. but how do I get the two board to take to each other I know the SD21 can handle I2C and has 3 I2c connector on board. but how can I control it from the Motor Drive board when I an already using B4,5,6,7 to drive the motors. what am I missing or do wrong, or do I have to run a different board to drive my chaise and IR input.