CORTEX Microcontroller and Joystick Quick Start Guide
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d. Reinstall the battery cover (insert the two tabs of the battery cover rst along the back edge of the battery cover to aid
in installation) and add the VEXnet 802.11g key as shown.
e. For longest battery life, turn ON the units only when needed. Fresh batteries in the Joystick will provide about two
hours of run time. If wireless operation is not required, substitute the VEXnet keys with a USB A-A cable. For this
tether conguration, turn ON the CORTEX but leave the Joystick OFF. The USB A-A cable will power the Joystick.
f. Turn ON the CORTEX Microcontroller and the Joystick by setting the power switches to ON as shown in the two
pictures below.