27404 Parallax Inc, 27404 Datasheet - Page 127

• 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

The subroutine for the pushbutton needs a different approach. Remember that
and
output
Read_Line_Sensors
√
√
√
√
√
DummyPin
Start by opening all of the following programs:
Save QtiPulseDecayTrick.bs2 as TestAllSensors.bs2
Copy and paste the I/O definitions and variables from the other programs into
your new program.
Add one more bit variable that was not found in the other programs, to store the
state of the pushbutton:
pushbutton
Make subroutines for the speaker, IR detectors, and QTI detectors from the
functional portions of their test programs. If the actual work of a sensor is done
in the program's Main Routine, (like IR object detection), paste that part of the
routine into a subroutine. For example, a
could take four lines from the Main Routine of TestFrontIrObjectDetectors.bs2,
and four more from TestSideIrObjectDetectors.bs2.
Read_Object_Detectors:
when
FREQOUT IrLedRS, 1, IrFreq
irRS = ~IrSenseRS
FREQOUT IrLedRF, 1, IrFreq
irRF = ~IrSenseRF
FREQOUT IrLedLF, 1, IrFreq
irLF = ~IrSenseLF
FREQOUT IrLedLS, 1, IrFreq
irLS = ~IrSenseLS
RETURN
o
o
o
o
o
both reference P6, which is serving two purposes. It's getting used as an
TestLedSpeaker.bs2
TestPushButton.bs2
TestFrontIrObjectDetectors.bs2
QtiPulseDecayTrick.bs2
TestSideIrObjectDetectors.bs2
DummyPin
subroutine. For P6 to next be used to monitor the pushbutton, it
VAR
sends
Bit
the
PULSOUT
Read_Object_Detectors
' Right side IR LED headlight
' Save right side IR receiver
' Repeat for right-front
' Repeat for left-front
' Repeat for left side
command
pulses
from
subroutine
pbSense
the