28824 Parallax Inc, 28824 Datasheet - Page 7

• Manufacturer Part Number: 28824
• Description: SERVOPAL SERVO PULSER TIMER
• Manufacturer: Parallax Inc

Specifications of 28824

• Accessory Type: Servo Motor Control
• Product: Microcontroller Accessories
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With/related Products: BASIC Stamp®
• For Use With: 28803 - KIT BOARD OF EDU W/O PWR SUPP
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

The program works like this:
Here’s the program:
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' -----[ Program Description ]---------------------------------------------
' This program uses the ServoPAL in conjuction with IR emitters and
' detectors to steer the BOE-Bot past obstacles in encounters in its
' path.
' -----[ I/O Definitions ]-------------------------------------------------
IRDetR
IREmtR
IREmtL
IRDetL
nInp
Alarm
' -----[ Constants ]-------------------------------------------------------
NONE
RIGHT
LEFT
© Parallax, Inc. • ServoPAL (2007.10.30)
1. Start the BOE-Bot moving forward.
2. Keep checking for obstacles until one is found.
3. If obstacle is on left or right, begin turning in opposite direction.
4. If obstacle is in front, back up for one second, then begin turning right for at least ½ second.
5. Continue evasive action until clear of obstacles AND any timed motion has completed.
6. Go to step 1.
File...... ServoPAL_IR_Roaming.bs2
Purpose... BOE-Bot IR Roaming Program using ServoPAL
Author.... Parallax, Inc.
E-mail.... [e-mail]
Started... 2007.10.29
Updated...
{$STAMP BS2}
{$PBASIC 2.5}
PIN
PIN
PIN
PIN
PIN
PIN
CON
CON
CON
0
2
8
9
12
13
0
1
2
'Righthand IR detector.
'Righthand IR emitter.
'Lefthand IR Emitter.
'Lefthand IR detector.
'ServoPAL input pin.
'ServoPAL alarm pin.
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