Meaning of LEDs on Pixhawk2.1?

Hardware Pixhawk 2
5

No, I am referring to the LEDs and at the junction between the Cube and the carrier board on PH2.1. Quite different than the Pixhawk 1 LEDs, and having nothing to do with Here GPS.

Kelly

6

Hi, I’m in the same boat, cannot find any description of what the LED’s at the base of the cube are indicating.
I have a solid orange at the front left corner and a rapid flashing orange at the left rear corner.
I also cannot get any USB or telemetry connection. ( it has worked recently )
It’s like a FMU or I/O error leds in the Pix 1.
Does anyone know where these LED’s are documented?
Marty.

7

Hi, I’m in the same boat, cannot find any description of what the LED’s at
the base of the cube are indicating.
I have a solid orange at the front left corner and a rapid flashing orange
at the left rear corner.

You could be stuck in the bootloader, usually caused by an incomplete
flash.

Try reflashing the firmware as a first step.

8

Hello, All,

The meaning of the light on Here would be follow:

Solid any color - Armed

Breathing any color - Standby

Amber - Low battery or Fail safe (Return to home, etc)

Blue - GPS not locked

Green - GPS Locked

Fast Blink & Red - Arming error

Blink & Red - Other error

Eric

9

Eric,

Thanks for that information. Where did you find this information? Is it documented somewhere, or tribal lore passed down through the generations?

Kelly

10

I can’t tell that @xiewei23307 read the exchange above?

11

I had similar problem of not booting and flashing orange.
My guess is insufficient power because it always happens when powered via USB but never when powered via power module.

12

The led light in the cube is similar in meaning to the led light in pixhawk1. If it stuck in flashing amber light means it is not booted completely. You may look in to the boot log in SD card to see any errors.

13

Hi, Kelly,

I found the info from Hex Technology, lol, I am the staff from Hex.

Eric

14

Thanks Eric. I suspected you might be part of design or mfg team. :slightly_smiling_face: What other info you got that Cube owners might want to know?

Kelly

15

What does it mean when you get solid orange on battery, and rapid flashing orange powered by USB but it never boots or connects to MP

16

What does it mean when you get solid orange on battery, and rapid flashing
orange powered by USB but it never boots or connects to MP

Means you’ve got a bad flash and the bootloader is refusing to boot to the
badly-flashed code.

You should be able to reflash it using MP - something about “force
bootloader” or something - sorry, I’ve never used it for flashing…

17

I got the firmware to flash via USB, now on battery it will still not boot
Just stays orange

18

I have given up, I will chuck in a drawer in hopes that maybe someone can figure out what is going on.

19

I worry about suggesting something you’ve already eliminated, but could it be a low-battery issue?

20

I wish, it does it on battery or directly plugged into a USB
this is the led at the base of the cube, not the LED that are standard indicators on the Here or other

21

Ah, okay. Help me understand: You “got the firmware to flash” via USB. Then, using that USB, can you use Mission Planner to connect? If not, what is your indicator of a successful flash?

22

It connects but fails to boot, pX4IO error

26195323_569052960107941_8013654751690143753_n.jpg698×512 43.8 KB

23

I don’t know what this error means. I think I found it in the source code: AP_BoardConfig/px4_drivers.cpp, line 201.

if (px4_start_driver(px4io_main, "px4io", "start norc")) {
    printf("px4io started OK\n");
} else {
    sensor_config_error("px4io start failed");
}

Can anyone else help?

24

nice find but not sure what that means as far as fixing it