LED Blink Codes

The RGB LED located on the Control Hub (REV-31-1595) and Expansion Hub (REV-31-1153) near the RS485 ports provides 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 WiFi Reset

Control Hub changed WiFi Band to 5GHz after pressing the button

Blinking Yellow

During WiFi Reset

Control Hub changed WiFi Band to 2.4GHz after pressing the button

Expansion Hub

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 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 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.