Parallax Boe-Bot Student Manual page 91

You can use ServoP13Clockwise.bs2 to send this pulse train to the servo connected to
P13.
Example Program: ServoP13Clockwise.bs2
Your entire system, including servos should be connected to power for this activity.
√ If you have a Board of Education Rev C, set the 3-position switch to position-2.
This connects power to the servo ports in addition to the position-1 power to the
BASIC Stamp, Vdd, Vin, and Vss.
√ If you have a BASIC Stamp HomeWork Board, replace the battery you removed
from the battery pack. This will restore power to the servo ports. Also, connect
the 9 V battery to the battery clip. This will supply power to the embedded BASIC
Stamp, Vdd, Vin, and Vss.
√
Enter, save, and run ServoP13Clockwise.bs2.
√
Verify that the servo's horn is rotating between 50 and 60 RPM clockwise.
' Robotics with the Boe-Bot – ServoP13Clockwise.bs2
' Run the servo connected to P13 at full speed clockwise.
' {$STAMP BS2}
' {$PBASIC 2.5}
DEBUG "Program Running!"
DO
PULSOUT 13, 650
PAUSE 20
LOOP
Notice that a 1.3 ms pulse requires a
which is less than 750. All pulse widths less than 1.5 ms, and therefore
arguments less than 750, will cause the servo to rotate clockwise.
Duration
Example Program: ServoP12Clockwise.bs2
By changing the
PULSOUT
servo connected to P12 turn full speed clockwise.
√
Save ServoP13Clockwise.bs2 as ServoP12Clockwise.bs2.
√
Modify the program by updating the comments and the
argument to 12.
Pin
Chapter 2: Your Boe-Bot's Servo Motors · Page 77
command
PULSOUT
command's argument from 13 to 12, you can make the
Pin
argument of 650,
Duration
PULSOUT
command's
PULSOUT