Robotics Chapter 7 Quiz: Initialization Method
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Questions and Answers

What is the purpose of the atexit.register(turn_off_motors) statement?

  • It ensures the motors are turned off when the program is terminated.
  • It allows the program to exit gracefully by releasing the motors.
  • It initializes the `turn_off_motors` function to be called at the end of the program.
  • It registers the `turn_off_motors` function to be called when the program exits, ensuring the motors are turned off. (correct)

    • What is the purpose of the Raspi_MotorHAT.RELEASE constant used in the lm.run() and rm.run() methods?

  • It sets the motor speed to 0.
  • It initializes the motor to a specific state.
  • It sets the motor to a default speed.
  • It releases the motor, stopping its rotation. (correct)

    • What is the purpose of the mh.getMotor(1) and mh.getMotor(2) statements?

  • They initialize the left and right motors with the Motor HAT.
  • They retrieve the motor objects for the left and right motors, respectively. (correct)
  • They define the motor ports for the left and right motors.
  • They set the speed of the left and right motors.

    • What is the purpose of the lm.setSpeed(150) and rm.setSpeed(150) statements?

    <p>They set the speed of the left and right motors to 150.</p> Signup and view all the answers

    What is the purpose of the Raspi_MotorHAT(addr=0x6f) statement?

    <p>It initializes the Motor HAT with the I2C address 0x6f.</p> Signup and view all the answers

    What is the purpose of the lm.run(Raspi_MotorHAT.FORWARD) and rm.run(Raspi_MotorHAT.FORWARD) statements?

    <p>They set the left and right motors to run in the forward direction.</p> Signup and view all the answers

    What is the purpose of the time.sleep(1) statement?

    <p>It sets a delay of 1 second between motor commands.</p> Signup and view all the answers

    What is the purpose of the turn_off_motors() function?

    <p>It releases the left and right motors, stopping their rotation.</p> Signup and view all the answers

    Why is the Raspi_MotorHAT class imported from the Raspi_MotorHAT module?

    <p>To access the Motor HAT functionality and control the motors.</p> Signup and view all the answers

    What is the purpose of the lm = mh.getMotor(1) and rm = mh.getMotor(2) statements?

    <p>They retrieve the motor objects for the left and right motors.</p> Signup and view all the answers

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