MR60

Pixhawk external LED?

Posted by Hugues on February 2, 2014 at 2:32pm

Hi,

Anyone succeeded to install external LEDs on Pixhawk?

On APM we could configure the param Led_mode to a binary value representing which actions turn LEDs on A5 and A6.

Is there an equivalent feature on Pixhawk? Found nothing in the wiki about it.

Thx for any info,

Hugues

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Replies

  • Vaggelis August 17, 2019 at 12:23pm

    hello everyone
    ive being trying for qute a while now to emulate toshiba led with an arduino
    initaly i had problems with the arduino protocol
    i used this git repo :


    sgofferj/Ardupilot-Neopixel

    Use Adafruit Neopixel LEDs as external indicator LEDs for Ardupilot - sgofferj/Ardupilot-Neopixel




    this helped a lot to clear out
    how the protocol was working , but the issue is that neo pixels are expensive .
    so i went ahead to use ws2801`s the software is in a realy earlly stage , but works
    tested on a pixhawk 1 with arducopter 3.6

    favicon.ico GitHub
    20401903?s=400&v=4

    finos2/PixHawk-i2c-to-Ws2801-bridge

    this is an emulator of the toshiba led on the 3DR PixHawk flight controler family , creates a compatible signal for ws2801 leds [early beta stage] - finos2/PixHawk-i2c-to-Ws2801-bridge



    this is the first vesrion of the workign code . feel free to test it and point any bugs

    sgofferj/Ardupilot-Neopixel
    Use Adafruit Neopixel LEDs as external indicator LEDs for Ardupilot - sgofferj/Ardupilot-Neopixel
  • André Zibaia da Conceição January 17, 2017 at 3:39am

    Thanks Nick! I think the 2 mavpixels idea (duh for me!) will make it work perfectly :)

    Actually, I think I will use a 7bit ring alternative, which will be much simpler to wire.

    Thanks again and keep up the good work!

  • Nick January 16, 2017 at 11:30pm

    Sorry, Ivars for the very late reply. I totally missed this one.

    So I just confirmed the firmware flasher feature (still) works for me.

    During the flash procedure does the progress bar at the bottom of the flasher show any progress? There could be issues with MavpixelGUI's internet access. Check your firewalls, proxies and permissions.

    Anyway, not a problem. Download Mavpixel21beta.hex from https://github.com/prickle/Mavpixel/releases and use the local file option in the flasher to get it on the board.

    Good luck,

    Nick.

    Ivars Borsteins said:

    I have downloaded and installed MavpixelGUI v1.0.0.0 and after installing arduino 1.0.6 to fix a "cannot find libusb0.dll" error was able to initiate the firmware flashing procedure.  Problem is, I only get to the downloading firmware stage and it seems to just hang up there.  Is it possible to download just the hex file from somewhere and use it to manually flash the pro mini board?

    Nick said:


    3702266997?profile=originalFirst release of MavpixelGUI is now available.

    Download from: http://github.com/prickle/MavpixelGUI/releases/tag/v1.0-beta

    Please note that you can now use the Firmware Flasher in MavpixelGUI to flash Arduino Pro Minis into Mavpixels much more easily than using the Arduino IDE as previously suggested.

    Documentation will appear slowly over the next few weeks. For now, a very quick guide to getting started can be found in the Help->About window.

    Remember this is pre-release software and is likely to contain many silly bugs I would like to find. Some minor features may not work yet. Please report any issues, problems, suggestions or comments.

    Please ask questions. Your interest will help guide the documentation to focus on the user's needs.

    Good luck and happy flying.

    Nick

    prickle/Mavpixel
    Mavpixel firmware repository. Contribute to prickle/Mavpixel development by creating an account on GitHub.
  • Nick January 16, 2017 at 11:10pm

    Hi André.

    Thanks for your kind words.

    There are no plans at the moment to support other boards. Mavpixel is a codewise clone of Cleanflight LED strip functionality with Mavlink control and has all the same features and limitations, notably 32 leds per Mavpixel board.

    Note that I say "per board". There is no reason why not to have multiple Mavpixels. They could even share a single serial port.

    The real issue is strips can be a maximum of eight pixels due to conflicting timing requirements. The 12 pixel ring you indicate would need (probably quite tricky) physical modification to work. I imagine it could be possible to cut the data track on the pcb between leds 8 and 9 and add a new data wire on to the data input leg of the 9th led.

    This scheme would require two Mavpixels for four 12-rings and leave 4 extra places on each of the ring's outputs for some more leds.

    Cheers,

    Nick


    André Zibaia da Conceição said:

    Hi Nick!

    Congrats on your work. I am building a quad and the Mavpixel-driven LEDs are a big part of it!

    Do you plan to support any other boards that allow a greater number of LEDs? I would like to put some of these under each motor of my quad, and then some more, but just these have 12 LEDs each...

    Do you have any ideas on how to get there?

    Thanks again and congrats!

    André

  • André Zibaia da Conceição January 16, 2017 at 10:23am

    Hi Nick!

    Congrats on your work. I am building a quad and the Mavpixel-driven LEDs are a big part of it!

    Do you plan to support any other boards that allow a greater number of LEDs? I would like to put some of these under each motor of my quad, and then some more, but just these have 12 LEDs each...

    Do you have any ideas on how to get there?

    Thanks again and congrats!

    André

    NeoPixel Ring - 12 x 5050 RGB LED with Integrated Drivers
    Round and round and round they go! 12 ultra bright smart LED NeoPixels are arranged in a circle with 1.5" (37mm) outer diameter. The rings are 'c…
  • Ivars Borsteins November 7, 2016 at 7:18pm

    I have downloaded and installed MavpixelGUI v1.0.0.0 and after installing arduino 1.0.6 to fix a "cannot find libusb0.dll" error was able to initiate the firmware flashing procedure.  Problem is, I only get to the downloading firmware stage and it seems to just hang up there.  Is it possible to download just the hex file from somewhere and use it to manually flash the pro mini board?

    Nick said:


    3702266997?profile=originalFirst release of MavpixelGUI is now available.

    Download from: http://github.com/prickle/MavpixelGUI/releases/tag/v1.0-beta

    Please note that you can now use the Firmware Flasher in MavpixelGUI to flash Arduino Pro Minis into Mavpixels much more easily than using the Arduino IDE as previously suggested.

    Documentation will appear slowly over the next few weeks. For now, a very quick guide to getting started can be found in the Help->About window.

    Remember this is pre-release software and is likely to contain many silly bugs I would like to find. Some minor features may not work yet. Please report any issues, problems, suggestions or comments.

    Please ask questions. Your interest will help guide the documentation to focus on the user's needs.

    Good luck and happy flying.

    Nick

  • Nick July 17, 2016 at 6:50am

    Hi Hugues.

    Not at the moment. I am currently constructing some documentation along those lines but the first draft isn't great. 

    3702269701?profile=original

    I should have a decent wiring diagram prepared soon. Probably more than one in order to show optional extras more clearly and simply. Some photos of prepared hardware might also be nice perhaps.

    I have some work to do and some recruiting to finalize before I am ready to make a demo video but it should also eventually arrive.

    Cheers,

    Nick

  • MR60
    Hugues July 16, 2016 at 3:07pm

    Hi Nick, thx for posting your GitHub code for driving LEDs. Do you have any pictures of an hardware setup to visualize the thing concretely?

  • Nick July 14, 2016 at 11:39pm

    Hi Chromic.

    Great to hear it's working. I would love to see a photo of your setup.

    Cheers,

    Nick

  • audrius chomicius July 14, 2016 at 8:35am

    Hi Nick,

    you was right, there were some parameters left from ULRS. just i set it to 0 and it works .

    Thank you very much, you developed option , i missed in APM

    Br,

    Chomic

This reply was deleted.