Adding an Ultrasonic Sensor to ClareBot.  

 

  Small,  Big.   Small,  Big.

Find an ultrasonic sensor and cable, and connect them as shown in these videos (0:44).

 9   10   11  12   14   15   16   17   18   →

Note: To lessen confusion, the robot used in these videos has had all other cables removed. However to use your robot, you will need cables that connect the motors to the computer brick; to see how to connect these, click on 14.