15) Servo Headers
The servo headers are labelled L (Left, P26) and R (Right, P27) servo motors, and are
configured to match the orientation of the Parallax standard BRW (Black Red White)
servo cable colors. Power output is enabled when the Power switch is in position 2, and
the voltage level is set by the battery pack voltage connected to the DC Jack.
WARNING! Power In voltage sets the voltage at the servo headers.
Use an input voltage that does not exceed the maximum voltage
rating of the servo motors.
16) QTI Headers
The four QTI headers with 0.1” pitch pins are compatible with the Parallax QTI Sensors
(#555-27401) that are included in the SumoBot WX Competition kit. Note that the
Propeller I/O connection (P12–P15) is the center pin on each of these headers, unlike
the SERVO and AUX headers.
17) Power In DC Jack
The Power In DC Jack accepts a DC plug with a center-positive 5.5 mm outer diameter,
2mm pin diameter, such as the one on the 4AA battery holder included in the SumoBot
WX Competition Kit. Power input voltage range is 4.8-8.4 VDC.
WARNING! Power In voltage sets the voltage at the servo headers.
Use an input voltage that does not exceed the maximum voltage
rating of the servo motors.
18) AUX Headers
Four AUX 3-pin, 0.1” pitch headers are provided for the user to expand and customize
their application with additional accessories.
All four headers are arranged to match the standard Parallax cable color order,
Black-Red-White = Ground-Power-Signal. The top two AUX headers have 3.3V output,
and the bottom two have 5V output.
19) Bulk Capacitors
The SumoBot WX requires significant power during battle, especially as the servo
motors change direction and encounter friction which increases the current draw and
reduces voltage levels. The three large capacitors provide a reservoir of power to keep
the SumoBot WX powered during the toughest of battles!
Copyright © Parallax Inc.
SumoBot WX Board (#32132)
v1.1 8/17/2020 Page 6 of 9