Robotics II Test II

What is a "blob" of color in the context of camera images as described in the study guide?

• A random assortment of pixels scattered across the image

• A group of similarly-colored pixels touching each other

• A single pixel of a distinct color different from its surroundings

• A pattern of alternating colors in a specific shape

What do you need to put at the top of your sketch to use the Pixy cam with Arduino?

• A special function to initialize the camera

• A comment describing the sketch

• Including the library for Pixy cam integration

• A declaration of pin assignments

Which of the following ports cannot be used with the Pixy cam? Select all that apply.

• Digital ports 12 and 13

• Analog input ports

• Servo Ports

• Ground Ports

Where is does the PixyCam put (0,0)?

• The center

• Top right

• Top left

• Bottom left

What is meant by understanding the x and y coordinates of pixels?

• Knowing how to program movement in a 3D space

• Recognizing the color values of each pixel

• Understanding the position of each pixel in an image

• Calculating the distance between pixels

What do PixyCam signatures do?

• Identify different blobs in the image

• Sign your name on the pictures taken

• Encrypt the data from the camera

• Tell the robot what to do for each blob

Which call would make a servo turn faster: servoLeft.writeMicroseconds(1440) or servoLeft.writeMicroseconds(1420)?

• servoLeft.writeMicroseconds(1440)

• servoLeft.writeMicroseconds(1420)

• Both calls result in the same speed

• The speed cannot be determined with the given information

What is the purpose of calculating rpms in the context of robotics?

• To determine the robot's battery life

• To calculate the distance traveled by the robot

• To measure the robot's weight

• To program the robot's sensors

What is the smallest change in value that actually makes a noticeable difference in servo movement?

• 5

• 10

• 15

• 20

If one servo value is slightly overshooting 90 degrees and the other is slightly undershooting, what should you do?

• Ignore the difference as it is too small to matter

• Adjust both servos to the same value

• Increase the value of the servo that is undershooting

• Find a value that is a compromise between the two