Status Indicators

Dingo has four configurable LEDs on the corners of the chassis, as well as a Human-Machine Interface (HMI) panel on the rear of the robot. These lights are used to indicate the robot’s status.

HMI Panel

From left-to right the HMI panel controls are:

Icon	Description	LED Colors
	Emergency Stop (E-Stop)	Green: Motors are powered. Red: E-Stop is engaged.
	MCU connection status	Green: MCU working. Red/Off: Error communicating with MCU.
	Wi-Fi connection status	Green: Wi-Fi connected. Off: Wi-Fi offline.
	Battery status	Green: Battery OK. Red: Battery low.
	Power button	Green: Robot is on. Off: Robot is off.

Corner LEDs

The corner LEDs use the following patterns to indicate the robot’s status:

Front LEDs	Rear LEDs	Description
Solid white	Solid red	Normal operation.
Pulsing orange	Pulsing orange	Battery is low.
Flashing orange	Flashing orange	Fault.
Flashing red	Flashing red	E-Stop is engaged.
Solid red	Solid red	ROS is not running. Possibly because unable to contact MCU, or firmware malfunction, or initialization error.

While the robot is in the normal operation state the LED colors can be customized by publishing to the /cmd_lights topic. In any other state LED customization is disabled.