VEX Controller
The color of the LEDs indicates the status of the Controller. Review table below. This
information is very helpful when working with the Controller.
Power / Link LED
Charge / Game LED
VEX Controller Buttons and Joysticks
The Controller has (4) joystick axes labeled A, B, C and D that are used to control the robot.
The further the joystick is moved in one direction, the faster the motor will spin. When the
joystick is at rest, the motors do not receive any signal to move.
A
B
E
The Controller also has 4 pairs of buttons labeled E, F, R and L. These buttons
turn the motors on at full speed in one direction. Each button pair controls the
clockwise and counterclockwise direction of the motor.
See the Driver Control Program for a mapping of the joysticks and buttons to the
ports on the Robot Brain, when using the built-in Drive Control program.
Power / Link LED Color
Solid Green
Blinking Green
Solid Red
Blinking Red
Charge / Game LED Color
Solid Green
Solid Red
Blinking Red
Off
D
C
F
POWER/LINK
CHARGE/GAME
Status
VEX Controller ON - with NO
Radio Link (searching)
VEX Controller ON - with good
Radio Link
Battery level low - with NO Radio
Link
Battery level low - with good
Radio Link
Status
Battery is completely charged
Battery charge in progress
Battery fault
Not charging
R
L
CHARGE
TETHER
95
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