Lesson: 20V ESR Hearing Double

This lesson uses a set of 3 CoderZ activities to show how to use a second Ultrasonic Sensor for navigation.  

1) Use a second ultrasonic sensor to score from the green containers, but avoid the red one:

Cyber Robotics 101: Obstacle Detection II >> Mission 10 (Ultraside) 
https://play.gocoderz.com/dashboard/#/project-editor/4584111

2) Now try again with a series of red and green containers:

LEVEL-OVER to Challenge Missions II Pack
Cyber Robotics 101: Challenge Mission II >> Mission 1 (Side-Sonic 1) 
https://play.gocoderz.com/dashboard/#/project-editor/4584311

3) This time the green containers are harder to get to..... drive (code) carefully:

Cyber Robotics 101: Challenge Mission II >> Mission 2 (Side-Sonic 2) 
https://play.gocoderz.com/dashboard/#/project-editor/4584348

4) Answer this question:

What did the second Ultrasonic Sensor allow you to do?