28139 Parallax Inc, 28139 Datasheet - Page 116

• Manufacturer Part Number: 28139
• Description: KIT REMOTE IR FOR BOE-BOT W/TEXT
• Manufacturer: Parallax Inc

Specifications of 28139

• Accessory Type: IR Remote
• Product: Microcontroller Accessories
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• For Use With/related Products: Boe-Bot®
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Contains lead / RoHS non-compliant

right wheel rotates counterclockwise slowly, and when
counterclockwise at full speed.
Example Program: IrRoamingWithSpeedControl.bs2
This example program is a modified version of FastIrRoaming.bs2 from Robotics with
the Boe-Bot, Chapter 7, Activity #5. The comments in the program listing will show you
which lines you will need to add or change to complete the modification.
Before IrRoamingWithSpeedControl.bs2 starts, the Debug Terminal will prompt you to
enter a speed between 0 and 100. After you enter the desired speed, the Boe-Bot will
roam at that percent of full speed.
' IR Remote for the Boe-Bot - IrRoamingWithSpeedControl.bs2
' Higher performance IR object detection assisted navigation.
' The "<-- Add" comments indicate new commands lines of code.
' The "<-- Change" comments indicate lines of code that should be changed.
' {$STAMP BS2}
' {$PBASIC 2.5}
irDetectLeft
irDetectRight
pulseLeft
pulseRight
speed
FREQOUT 4, 2000, 3000
DEBUG CLS, "Enter percent of", CR,
DEBUGIN DEC speed
√
√
√
Enter and run IrRoamingWithSpeedControl.bs2.
When you run the program, the Debug Terminal will prompt you for the percent
of full speed that you want the Boe-Bot to roam at. Enter the desired speed into
the Debug Terminal's Transmit Windowpane.
Try re-running the program a few times, each time selecting a different percent
of full speed.
For a review of how to use the Debug Terminal's Transmit Windowpane, see Figure 1-12 on
page 20.
"full speed (0 TO 100): "
VAR
VAR
VAR
VAR
VAR
Bit
Bit
Word
Word
Byte
' <-- Add
' <-- Add
' <-- Add
' <-- Add
' Variable Declarations
' Signal program start/reset.
speed
is close to 100, it turns