BBBmini Rev. 1.6 wish list

Posted by Mirko Denecke on July 14, 2016 at 8:32am

Hello,

this is the next BBBmini Rev. 1.6 wish list. After discussion I will sort the requests into YES, MAYBE, NO.

YES:

  • Add second IMU
  • Add I2C bus pull up resistors
  • Add WS2812 LED support
  • Remove HC-SR04 support (results are not as expected)
  • Add Buzzer support
  • Add Power button header
  • Add Level shifter / remove resistor voltage divider

MAYBE:

  • Switch to 1206 SMD parts, because there is not enough space left on the PCB

NO:

  • rfm23bp support (HF and no driver yet)
  • Reduce PWM channels
  • IMU heating
  • Remove CAN bus support
  • Change PCB outline for BeagleBone Green Wireless

Regards

Mirko

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Replies

  • Vinicius Juvinski July 21, 2016 at 9:04pm

    Nice :)

  • Patrick Poirier July 21, 2016 at 5:45pm

    Here is my ArduPlane BBBMINI  Build rev 1.5 -C

    - Hijacked the CanBus right legs for the Analog Airspeed and left leg for the LED & Installed these (A & C ) on a remote board  with pulldown resistors and covered these with yellow heat shrink... yeah it looks like a paperbag man !!

    - Deadbug installation of a FET and resistor directly on PWM number 8 connector for the Buzzer

    3702272024?profile=original

  • Developer
    Linus July 21, 2016 at 2:55pm

    I think if space allows it would be great to add a few holes for mounting the display on top ?

    Maybe place a WS2812 under it and it might look cool as well :)

  • Vinicius Juvinski July 21, 2016 at 1:19pm
    This serial1 available will help me a lot :)
    Patrick, the signals are inverted related to value. The active state is low - you can see on APM 2.6 schematic(http://i.imgur.com/hZ5XlJS.png) under leds and pins.
  • Patrick Poirier July 21, 2016 at 12:04pm
    Ok so I will implement LED A & C
    Are the signal is active high or active low?
  • Vinicius Juvinski July 21, 2016 at 7:14am
    Hi Mirko, how can this WS led be enabled.
    Patrick, this is my temporary circuit - I'm using 12v leds, so I'm using 3 4n26 to protect BBBMini circuit. BTW, the B led didn't show anything - I read the documentation and was to calibration process indication, I think maybe was removed from code.

    https://www.youtube.com/watch?v=bqEVyaxM9mg
    YouTube
  • Patrick Poirier July 21, 2016 at 4:21am

    Hello Mirko,

    Is this method being implemented within Ardupilot as a standard status LED ?

    Otherwise, I will stick with Vinicius configuration on the actual build and definitively shift toward WS2812 LED support on the next builds.

    P.S" No comments on the reuse of channels 7-12 as expansion connectors to free up space on deck ?

    Regards

  • Mirko Denecke July 21, 2016 at 3:28am

    Hi Patrick,

    you can use the PWM outputs as LEDs as well https://www.youtube.com/watch?v=GulHqnTuCfs .

    Regards

    Mirko

    Patrick Poirier said:

    Super :-)

    I'll get both the LED & Buzzer installed on my new build. Thanks !!

  • Patrick Poirier July 20, 2016 at 6:05am

    Yes ,

    I am planning to mount it directly on the cape with standard LEDs. == I will upload a picture of the montage.

  • Vinicius Juvinski July 20, 2016 at 5:59am

    :-)

    Just remember, you need to use a DTS to enable the gpio for leds and buzzer. I'm finishing the leds, I'm using this strip(http://www.banggood.com/Diatone-3-4S-LED-Decoration-Board-Strip-Set...) with 4n26 optocoupler, I'm just finishing the resistors.

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