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2.2 Status Indicators

The red and green running lights on the port and starboard sides of Kingfisher indicate vehicle status based

on the frequency and pattern of flashing. These patterns are described in Table 1.

Light Pattern

Solid

Slow Single Pulse

Slow Double Pulse

Slow Triple Pulse

Fast Single Pulse

Fast Double Pulse

The precedence order in the table is downward—that is, the bottom-most condition which is true will be what

is indicated by the lights.

Description

No errors. PC and wireless are active, and a command stream

is being received and processed.

No command. Indicates that the system is fully up, but the

thrusters are not active due to an absence of command messages.

Command messages must be sent at 10Hz or faster to maintain

steady operation.

Wireless Error. Indicates that the onboard PC is unable to find

the base station's wireless network. If this indication is seen,

check the battery level and indicator lights in the base station.

Computer Error. Indicates that the microcontroller in Kingfisher

cannot see the onboard PC. This is expected for about two min-

utes when first powering on, while the computer boots up.

Manual Override. Indicates that manual control by the Futaba

R/C controller is active, and any commands originating from the

PC will be disregarded.

Critical Battery Pack. Indicates that the system battery level is

at or below 13V. Return to shore immediately.

Table 1: Kingfisher Status Indicators