Page 14 · SumoBot – Mini Sumo Robotics
Figure 2.4: SumoBot Servo Control Pulses
For pulses between the 1500 µs stop point and the extremes on either end of the control
range, there is a degree of speed control. This range is not linear, however, and at pulse
widths just outside the stop band, servo current increases dramatically. At some points in
the control range, the servo current can go high enough to cause an excessive load on the
BASIC Stamp's regulator circuitry, causing it to reset or behave erratically. For Mini-
Sumo competition, precise speed control is not a requirement. The goal is to find the
opponent and move quickly toward him.
Open the BASIC Stamp Windows Editor.
1
Load the following program that will be used
to align the SumoBot motors.
2
1
The Parallax BASIC Stamp Manual 2.x includes a “Quick Start” section that details how to open and
launch the BASIC Stamp Windows Editor.
2
Source code for this text is available in a zipped file for download from www.parallax.com.
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