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5. Diagnostics Information: refer to the following chart for Joystick and Cortex LED patterns and meanings.
Joystick [5]
Robot
Note 1: Does not apply to ROBOTC User Code Downloads
Robot [1]
Joystick [5]
Fast (red) [3]
Slow (red)
Note 1: Robot LED only work when Linked
Note 2: Lowest CORTEX battery color latched at Joystick and CORTEX
Note 3: No Backup Battery only indicated if competition cable is connected.
Joystick [5]
Robot
Note 4 : Game LED Driver Indicator is only used when the competition cable is connected.
Joystick [5]
Robot
(red)
(yellow)
(green)
Fast
Solid
Note 5 : Joystick LED only on Joystick.
Update Utility Tool Indicators
Joystick [5]
Robot
Slow (green)
Slow (green)
Other Indicators
Joystick [5]
Robot
(red)
Slow (red) double blink
Slow (red) double blink
Robot, VEXnet, and Game LED's
show the same data [2]
Page 8 of 14
Cortex Microcontroller and VEXnet Joystick User Guide
VEXnet
Medium (yellow)
Blip (yellow)
Fast (yellow)
Fast (green)
Slow (green / yellow)
Slow (green / red)
Solid (green)
Slow (red) single blink
Slow (green)
VEXnet
(red)
(yellow)
(green)
Solid
Solid + 1 Blink
Fast
VEXnet
VEXnet
VEXnet
Solid (green)
Slow (red)
VEXnet
(red)
(red)
Slow (red) double blink
Game
Initialize - Looking for PC or Tether Mate
Startup - Looking for USB Key
Linking - Searching for VEXnet Mate
Linked
Linked - Data quality reduced
Linked - Poor Data quality reduced
Tethered to Mate or PC
Fault: Lost Link - Searching for VEXnet Mate
Downloading User Code [1]
Game
Main Battery = Dead (<5.5v) or CORTEX Off [2]
Main Battery = Low (<6.5v) [2]
Main Battery = Good
All Good: Both Joysticks connected
All Good: Tx1 Joystick
Autonomous only mode
Fault: Low Backup Battery (0v-8v)
Fault: User Microprocessor Issue
Game
Off
No Competition connection
Solid (green)
Driver [4]
Fast (green)
Autonomous
Fast (yellow)
Disabled
Game
Joystick Battery = Dead (<5.5v)
Joystick Battery = Low (<6.5v)
Joystick Battery = Good
Two Joysticks in use
One Joystick in use
Game
Tether to PC
Flickering (green)
Bootload Mode - Ready to update firmware
Flickering (green)
Downloading Master Code
Game
(red)
Flash on all 3 indicates a Reset
NO VEXnet Key detected
Invaild ID in the CORTEX
Invaild ID in the Joystick
connected
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