27404 Parallax Inc, 27404 Datasheet - Page 214

• Manufacturer Part Number: 27404
• Description: COMPETITION RING FOR SUMOBOT
• Manufacturer: Parallax Inc

Specifications of 27404

• Accessory Type: Hobby and Education
• Product: Microcontroller Accessories
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• For Use With/related Products: SumoBot®
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Contains lead / RoHS non-compliant

Testing the Subroutine's Looping Code
Next question: "... is there a problem with the looping code inside the
Track_Side_Right_Object
TOGGLE
Track_Side_Right_Object
rapidly as the loop repeats. To keep from leaving the LED on after the subroutine is
finished, it's a good idea to also add a
RETURN
' -----[ Subroutine - Track_Side_Right_Object ]-------------------------------
Track_Side_Right_Object:
DO UNTIL irRF = 1 OR irLF = 1
√
√
√
√
√
TOGGLE LedSpeaker
maneuver = RotateRight
command.
Try it in the practice ring with the 3-position power switch set to 2.
Start your test SumoBot with its opponent on the right and watch the LED to see
if you can discern when it detects its opponent.
After you are done with this test, make sure to either comment the
statement by placing an apostrophe to the left of it, or just delete it. Otherwise,
you will get incorrect results from the next test!
Remember to first remove the test code from the
subroutine.
Modify the
as shown here.
Did the SumoBot catch a glimpse of its opponent or not? Sometimes the LED might
stay on too briefly to actually see. If you want to catch the event, simply remove the ELSE
condition from the IF...THEN statement. It will cause the LED to turn on and stay on the
first time the event you are testing occurs.
This statement is also really good for determining whether your IR object detectors
are oversensitive and detecting far-off objects. Simply place the SumoBot in an empty
ring and let it do its search pattern. If the LED comes on, the detector saw something it
wasn't supposed to.
LedSpeaker
IF irRS = 1 THEN HIGH LedSpeaker
Track_Side_Right_Object
command
subroutine. It makes the LED flicker and the speaker click
subroutine?" One effective way to test this is to put a
LOW LedSpeaker
inside
' Rotate right
' <--- Add
subroutine in CompCodeLedTest.bs2
the
command right before the
DO...LOOP
Servos_And_Sensors
IF...THEN
in
the