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Topics Covered

  • armControl Block

    • Lesson Links

    ... ...
    Check Your Understanding:
    1. 1. True or False. The armControl command block must also be placed within the loop.
      2. True
      False
    2. 2. VEX IQ Controller buttons provide values of:
      3. 0 when not pressed, and 100 when pressed.
      0 when not pressed, and 1 when pressed.
      -100 when not pressed, and 100 when pressed.
      1 when not pressed, and 0 when pressed.
    3. 3. The armControl command block allows you to specify:
      4. A motor to be controlled.
      Which VEX IQ Controller buttons to use.
      The speed the motor should be run.
      All the above
    Try It!
    Try it! 1

    Arm Speed Control

    The fourth box of the armControl command block allows you to control the speed that the arm motor is assigned.

    Adjust the speed used in your program to values of 25, 50, and 100.
    Download and run your program after each change, and observe which value gives you the best control over the arm motor. Try it!
    Virtual Robot ArmSpeedControlVR.rbg Physical Robot ArmSpeedControl.rbg

    What happens?
    Higher the value of the fourth box, quicker the arm raises or lowers!
    Copyright(c)2012 Carnegie Mellon Robotics Academy. All rights reserved.