Status LED Blink Codes

The RGB LED located on the Control Hub (REV-31-1595) and Expansion Hub (REV-31-1153) near the RS485 ports and on the bottom of the Driver Hub (REV-31-1956) provide user feedback regarding the status of the Hub. Below is a Table of the Blink Codes.

Control Hub

All Control Hub Blink Codes assume the latest Control Hub Operating System is running on the device

Robot Controller Application 6.0 or Higher

If a Control Hub is running Robot Controller Application 5.5 or lower the LED Blink Codes for the Hub will be the same as an Expansion Hub running Firmware Version 1.7.0 or higher.

LED Status	LED Description	When	Hub Status
	Solid Blue	At Boot	Control Hub has power; Battery is >7V and is waiting to initialize communications.
	Solid Blue	Anytime	Hub is waiting for communication with the Driver Station Host. Control Hub has power; Battery is >7V.
	Solid Green	Anytime	Hub has power and active communication with the Android Platform.
	Blinking Blue	Anytime	Keep alive has timed out. Fault will clear when communication resumes.
	Blinking Orange	Anytime	Battery Voltage is lower than 7V. Either the 12V battery needs to be charged, or the Expansion Hub is running on USB power only. This fault will clear when battery voltage is raised above 7V. This will not be overwritten by the keep alive timeout pattern.
	Blinking Magenta	During Wi-Fi Reset	Control Hub changed Wi-Fi Band to 5GHz after pressing the button
	Blinking Yellow	During Wi-Fi Reset	Control Hub changed Wi-Fi Band to 2.4GHz after pressing the button

Driver Hub

All Driver Hub Blink Codes assume the latest Driver Hub Software is running on the device

LED A

LED Status	LED Description	Hub Status
	Blinking White	Operating System is Booting

LED B

LED Status	LED Description	Hub Status
	Solid Green	Device is on

Battery Status LED

LED Status	LED Description	Hub Status
	Blinking Red	Battery Charging
	Solid Red	Battery Charged

Expansion Hub

Firmware Version 1.7.0 or Higher

LED Status	LED Description	When	Hub Status
	Solid Blue	At Boot	Hub has power; Battery is >7V and is waiting to initialize communications.
	Solid Blue	Anytime	Hub is waiting for communication with the Robot Controller. Hub has power; Battery is >7V.
	Solid Green with one or more blue blinks every ~5 Seconds	Anytime	Hub has power and active communication with the Android Platform. The number of blue blinks is the same as the Expansion Hub’s address. The factory default address is 2 ().
	Blinking Blue	Anytime	Keep alive has timed out. Fault will clear when communication resumes.
	Blinking Orange	Anytime	Battery Voltage is lower than 7V. Either the 12V battery needs to be charged, or the Expansion Hub is running on USB power only. This fault will clear when battery voltage is raised above 7V. This will not be overwritten by the keep alive timeout pattern.