27404 Parallax Inc, 27404 Datasheet - Page 150

• 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

Figure 4-3 PULSOUT Duration vs. Rotational Velocity for Parallax Continuous Rotation Servo
With some experimentation, you can also control the speed of the servos too. Note from
Figure 4-3 that the relationship between pulse width and rotational velocity is not simply
linear. For example, a
as you increase to 710, 720, 730, and so on, there should be a noticeable reduction in
speed. The closer
still pretty close to full speed counterclockwise, but as
servo will rotate counterclockwise more slowly.
ServoControlExample.bs2 demonstrates how to use
loop
SumoBot spends executing that maneuver.
Example Program: ServoControlExample.bs2
PULSOUT Duration 650
Pulse Width, µs 1300
√
√
EndValue
Enter, save, and run the ServoControlExample.bs2.
Verify that the SumoBot executes each of the maneuvers mentioned in the
comments.
Full Speed
Clockwise
-20
-40
-60
60
40
20
0
arguments to determine the SumoBot's maneuver and the time the
Duration
Duration
1350
675
is to 750, the slower the servo will turn. Likewise, 800 is
Speed Reduces
1400
700
of 700 is still pretty close to full speed clockwise, but
1450
725
Stop
1500
Full
750
PULSOUT Duration
Duration
Speed Reduces
1550
775
1600
800
gets closer to 750, the
and
825
1650
FOR...NEXT
Counterclockwise
Full Speed
850
1700