Transcript More loops, switches Day 5 Computer Programming through Robotics CPST 410 Summer 2009 Course organization  Course home page (http://robolab.tulane.edu/CPST410/)  Lab (Newcomb 442) will be open for practice.

More loops, switches
Day 5
Computer Programming
through Robotics
CPST 410
Summer 2009
Course organization
 Course home page
(http://robolab.tulane.edu/CPST410/)
 Lab (Newcomb 442) will be open for
practice with 3-4 Macs, but you can bring
your own laptop and all robots.
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Harry Howard, CPST 410, Tulane University
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Loops within loops
 Tribot, do a little dance. Move forward for 1
rotation and then turn right for 180°. Do
this 3 times and then turn left 2 rotations.
Beep and wait 2 seconds. Stop when the
center NXT button is pressed. After you
stop, laugh.
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Harry Howard, CPST 410, Tulane University
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NestedLoopMove.rbt
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Harry Howard, CPST 410, Tulane University
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MysteryLoop.rbt
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Decision, decisions
Kelly §12
Review
 Tribot, I want you to pivot in a circle for 3.5
rotations, stop, and beep. If your Light
sensor detects a light level greater than 30,
turn left.
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Harry Howard, CPST 410, Tulane University
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Switch0.rbt
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Challenge
 SPOT, I want you to pivot in a circle for 3.5
rotations, stop, and beep. If your Light
sensor detects a light level greater than 30,
turn left. Otherwise, turn right.
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Harry Howard, CPST 410, Tulane University
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The SWITCH block
 You will have to use a SWITCH block:
 which is the last block that we have not
used under the Common palette
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Harry Howard, CPST 410, Tulane University
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Using a switch
 Pull out a SWITCH block, set it to Light
Sensor, change it to 'greater than 30', and
delete the Light WAIT block.
 Drag your last MOVE block into the
SWITCH block for the left turn, and then
another MOVE block beneath it for the
right turn.
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Harry Howard, CPST 410, Tulane University
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Switch.rbt
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Switches in switches
 Tribot, move forward, and when your
ultrasonic sensor detects an object less than
25 cm in front of you, turn left if your sound
sensor detects a sound level greater than 20.
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Harry Howard, CPST 410, Tulane University
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SwitchFake.rbt
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SwitchinSwitch.rbt
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Next time
 More switches.
 STOP/break a loop.
 Random numbers.
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Harry Howard, CPST 410, Tulane University
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