Vex Sensors

Front

What are sensors?

Back

Sensors take in input information for the robot about its surroundings.

Front

The line tracking sensors need to be positioned this far away from the ground to be used properly:

Back

1/8 inch (3 mm)

Front

What range of values do the Light Sensor Line Follower/Tracker provide?

Back

0 (brightest) - 4095 (darkest)

Front

The ultrasonic sensor can measure objects

Back

by sending and receiving soundwaves

Front

The Ultrasonic Rangefinder (sonar sensor) can give distances in what units?

Back

mm, cm & in

Front

Why does the Ultrasonic Sensor have two openings in the front?

Back

One opening is for sending out the sound waves and One opening is for receiving the returning sound waves.

Front

The bumper switch and limit switch give values of 1 when pressed and 0 when released

Back

True

Front

The gyro sensor returns values in degrees.

Back

False, the gyro sensor returns values in tenths of a degree.

Front

What must be done before the gyro sensor can be used in your program?

Back

The robot must sit perfectly still for a couple seconds in order to calibrate itself before the rest of the program can be run.

Front

When mounted correctly, the gyro sensor measures: detecting whether the robot is turning clockwise or counter-clockwise (yaw) and how much it is rotating, detecting whether the robot is tilting forward or back (pitch) and how much it is tilting, detecting whether the robot is tipping side to side (roll) and how much it is tipping

Back

detecting whether the robot is turning clockwise or counter-clockwise (yaw) and how much it is rotating