Building the ultrasonic sensor attachment

1. You are now going to add the ultrasonic sensor so that during competition, your robot can detect the opponent:

2. Add two black connector pins to the azure 11x15 open frame where the motors are positioned and then add an azure 7L beam to these pins. Next, add two more black connector pins to the end pin holes of this beam:

   Figure 5.8 – Attaching the 7L beam to the frame

3. Connect the ultrasonic sensor to the robot by using the two black connector pins:

   Figure 5.9 – Connecting the ultrasonic sensor

4. You are now going to build a sub-model that will eventually connect underneath the ultrasonic sensor using the following steps:
   1. Place two purple 2x16 plates side by side.
   2. Secure them together using four white 2x2 round bricks.
   3. Add four yellow 1x2 slopes on the ends to serve as a bumper to lift up your robot opponent in battle:

Figure 5.10 – Building the plow for the front

10. It is time to add another...