27403 Parallax Inc, 27403 Datasheet - Page 180
27403
Manufacturer Part Number
27403
Description
GUIDE APP ROBOTCS W/SUMOBOT V1.0
Manufacturer
Parallax Inc
Datasheet
1.27404.pdf
(266 pages)
Specifications of 27403
Accessory Type
Manual
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
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Your Turn - Drawing a State Machine Diagram
ACTIVITY #5: SEARCH PATTERN AND TAWARA AVOIDANCE
Before your SumoBot will be ready for a match, it's got to be able to stay inside that
white tawara line. When it doesn't see anything with its IR object detectors, it's also got
to have a search pattern that's more effective than sitting in one spot and waiting.
Especially for matches that start the SumoBots facing away from each other, an effective
search technique can make a huge difference in your SumoBot's likelihood of winning
each round. While this activity demonstrates one of many search patterns you can use, it
will be up to you to develop an optimal search pattern for your SumoBot.
Another State Machine Main Routine
The example program in this activity is the QTI version of the programs from this
Chapter's Activity #2 and Activity #3. Those programs combined the IR detection pin
definitions, constants, variables, and subroutines developed in Chapter 3 with the
navigation routines from Activity #1 in this chapter. The example program in this
activity combines the QTI line sensor program elements that were developed in chapter 3,
again with the navigation program elements developed in this chapter.
You've seen all the
subroutines before. The only thing that's really new is the Main Routine below, and even
that follows the techniques similar to the ones introduced in this chapter's Activity #2 and
#3.
Notice that the code blocks that handle the QTI detections (
qtiRF...
absolutely sure that the SumoBot doesn't accidentally exit the ring chasing after a
spectator who's too close, it also prevents the SumoBot from decisively finishing off its
opponent in some cases. More about this double-edged sword on the Your Turn section.
√
Try drawing a hybrid state machine diagram for the Main Routine in
FrontAndSideIrNavigation.bs2 from this chapter's Activity #3.
) do not have any sensor conditions for exiting the loops. While it makes
PIN
and
DATA
directives, constant and variable declarations and
IF qtiLF...
,
ELSIF
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