Lego EV3 Ultrasonic Sensor

Which sensor is pictured here?

• Ultrasonic

• Color (light)

• Touch

• Infrared

A device that detects some important physical quality or quantity about the surrounding environment, and conveys information to the robot in electric form.

• Robot
• Sensor
• Color
• Loop

are used to connect sensors

• Ports 1-4
• Ports
• EV3 Brick
• Ports A-D

On the brick, ports A, B, C, & D are used for

• motors

• sensors

• to connect the robot to the computer

This sensor is used to measure distance to nearby surfaces

• ultrasonic

• touch

• gyro

Why does a single ultrasonic sensor have 2 "eyes" on it?

• So the ultrasonic waves can hit more objects

• So the bot can see differences in color

• One eye sends a signal and one receives it

• In case one eye stops working the other eye is a backup

Ultrasonic waves are a form of _______ waves

• sound

• ocean

• radio

• seismic

What is the advantage of Sensor Control over the Basic Movement Commands?

• The robot can use little to no battery power.

• The robot can levitate if enough sensors are used.

• The robot can react to its environment.

• There is no big advantage.

Which programming stack will stop the robot when it gets within 5 cm of an object?

• 
• 
• 
• 

To raise the arms, you need to run the medium motor

• Clockwise

• Counterclockwise