I finished the led (A,B,C) like APM boards.
I'm attaching the DTS for Buzzer and LED's.
To compile you must use
dtc -O dtb -o /lib/firmware/BBBMINI-BUZLED-00A0.dtbo -b 0 -@ BBBMINI-BUZLED.dts
and load the DTS before arducopter(in my case I'm using inside rc.local).
echo BBBMINI-BUZLED > /sys/devices/platform/bone_capemgr/slots
3 resistors - 470 Ohms
connected to pins P8.9 - Led A
connected to pins P8.10 - Led B
connected to pins P8.11 - Led C
Led behaviors(get from http://ardupilot.org/copter/docs/common-apm-board-leds.html):
Solid = armed, motors will spin when throttle raisedSingle Blink = disarmed, motors will not spinDouble Blink = disarmed, motors will not spin, cannot arm because of failure in pre-arm checks1
Only flashes along with A and B during calibration or as part of the in-flight auto trim feature.
Solid = GPS working, 3D lock
Blinking = GPS working, no Lock
OFF = GPS not attached or not working
I'm creating the PR today and will update here when available at main repo.