Introduction to Programming RCX code 2.0

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Introduction to Programming RCX code 2.0
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Starting the RCX Programming Environment

• Double Click on the RCX icon
• Once the program is loaded, create a new user, or
  select an existing one
• Click on Program
• Click on Freestyle

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Starting the RCX Programming Environment
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Mission 1 Drive Forward (with Timer)

• Go Forward for 5 seconds
• Stop

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Saving your work

• Go to File
• Click on Save
• Type in File Name. i.e. First Mission

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Downloading and Running

• 5 different programs can be loaded onto the RCX
  at once
• Select which slot you want to use by clicking on
  Settings and selecting one of the 5 slots
• Make sure that the robots IR port is facing
  towards the IR tower, and click Download
• When the download is finished, you will hear a
  beep
• You can now run the program by pressing the grey
  Prgm button on the RCX to select the slot you
  programmed
• And press the green Run button

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Driving in Reverse

• Use the Set Direction block under Small
  Blocks

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• After changing the directions, turn on the motors
  for 3 seconds

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Turning

• Set the direction of one motor to Forward and
  the direction of the other motor to Back

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Light Sensor

• Mounted to the front of the robot, facing the
  ground
• Allows detection of lines, white or black, as
  well as detecting lamps, lasers, and other
  light sources
• Use the View button on the robot to view the
  light sensor value over the black line. Remember
  or write down this value.

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Using the light sensor

• Select Wait Until from the Wait column
• Select Light and click Next
• Select Input Port to which the light sensor is
  connected. Press Next.
• Select Bright if looking for white line, Dark
  if looking for black line. Press Next.

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• Click on Manual and enter a value for the line.
  Usually its the value from using the View
  button 5 for a white line, or the value from
  using the View button 5 for a black line

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Mission 2 Drive Forward and Stop

• Go forward until the edge of the board
• Stop

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Mission 3 Solution
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Touch Sensor

• Touch sensor is attached to the bumper
• When the bumper is pressed the touch sensor is
  activated

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Using the Touch Sensor

• Turn on the motors
• Select the Wait Until block from the Wait
  column or Repeat Until from the Repeat column
• Make sure Touch is selected and press Next
• Choose Input Port to which the touch sensor is
  connected, and press Next
• Make sure Press is selected, which will allow
  the robot to react when the touch sensor is
  pressed. Press Next again.
• Press Done
• Turn off the motors

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Mission 3 Right-Handed Line Follow with Touch
Sensor

• If light sensor sees black - turn right,
  otherwise turn left
• Repeat the process until the bumper is hit
• Stop

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Mission 3 Right-Handed Line Follow with Touch
Sensor
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Mission 4 Line Follow and Stop

• Follow the black line, until robot reaches edge
  of the board
• Stop

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Mission 4 Line Follow and Stop
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Mission 5 Left-Handed Line FollowSolution will
be posted online at http//www.robofest.net

• If light sensor sees black - turn left, otherwise
  turn right
• Repeat the process until the bumper is hit
• Stop

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Mission 5 Left-Handed Line Follow