We are now in position to complete the robot!
Attach the sensor array to the blue connector pieces on the top front of the robot.
Now, attach the control unit to white bars we added to the wheel apparatus. We use the previously unused double-length black connector units for this purpose.
We can now connect the control unit to the wheel motors.
We can also connect the light sensors. (The second two wire connections are not shown. Either reference the completed picture, or just check the code.)
Now we need to assemble the rear stability wheel. Start by collecting and assembling these pieces.
Connect them as shown here.