ARV Embedded Firmware

LED Status

Send a single ASCII character over serial (9600 baud) to set the mode:

Char	Color/Mode
0	Off
1	Solid blue (teleop)
2	Flashing blue
3	Flashing green
4	Flashing yellow
5	Flashing purple
6	Flashing red
9	Rainbow

Recovery Ultrasonic

Outputs one CSV line per cycle over serial (9600 baud):

s1,s2,s3

Each value is distance in cm. 999 means out of range / no echo.