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Thread: Do it yourself, Cheap ADS-B, with Raspberry Pi

  1. #21
    KFfan's Avatar
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    Default Re: Do it yourself, Cheap ADS-B, with Raspberry Pi

    Quote Originally Posted by n85ae View Post
    Everybody has an Android tablet, right...?
    + at least one apple... LOL
    Lou
    KitFox II
    582

  2. #22
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    Default Re: Do it yourself, Cheap ADS-B, with Raspberry Pi

    On my 3 iPad, the only things I use it for are Foreflight, email, the forum & trading stock. I probable should get a Android.
    Paul Zimmermann
    LSRM-A
    Garland, Texas

  3. #23
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    Default Re: Do it yourself, Cheap ADS-B, with Raspberry Pi

    A little follow up, if anybody does make a Raspberry Pi based receiver
    as described, you should probably also look into putting the dongle and
    the wireless adapter on a small powered usb hub. I tried mine that way
    here in the house, and it seems to work MUCH better and I'm getting a
    lot more traffic and weather now. Best guess is the power out to the
    dongle on the pi is not up to the task, and the dongle gets flakey.

    I'm not an electrical engineer, but a logical best guesser, however trial
    and error has led to what I think is a better solution.

  4. #24
    Senior Member cubtractor's Avatar
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    Default Re: Do it yourself, Cheap ADS-B, with Raspberry Pi

    I could run my Raspberry Pi with 2 dongles just on the Kamashi battery pack without any problems. I had to use a double usb cable like the one below. There was absolutely no issues running a single dongle. I'm guessing you could run a single dongle for 10 hours or more on the battery pack. I'll probably go to a single dongle once the FAA switches over the 1090es traffic to display over 978 UAT. Here is the link to their proposed plan.

    http://www.faa.gov/nextgen/programs/...3-15-webv2.pdf

    http://www.amazon.com/gp/product/B00...ilpage_o03_s00

    The battery wasn't quite enough with the AHRS/GPS chip attached but just the 2 dongles was ok. I got the 2.4 amp cig adapter and run it on ships power now.
    Mike Bentley
    Model IV-1200
    Jabiru 2200A #438
    Rotec Aerosport LCH Heads
    Ellison EFS-2 Throttle Body
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  5. #25
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    Default Re: Do it yourself, Cheap ADS-B, with Raspberry Pi

    OK, I had a Galaxy Note, it was useless outdoors, the sunlight would wash out the screen, are any of the new Androids go out side? I use a iPad when flying as a backup. It is difficult at best reading in the daylight. Any recommendations on an Android Phone/Small Tablet for use in flying? I use ForeFlight app to navigate & maps.
    Paul Zimmermann
    LSRM-A
    Garland, Texas

  6. #26
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    Default Re: Do it yourself, Cheap ADS-B, with Raspberry Pi

    Hi Paul
    I use a 10 inch Gallaxy Tab S with both Avare and FLTPlan .I hang it from the ceiling with a Ram mount when flying solo.
    Flew over 1000 miles to the Yukon this summer and had no issues with washout in the sun.
    Must be plugged in to 12 volt for long flights.
    I like Avare because of the terrain and tracking . Tracking is excellent especially when on CASARA search and rescue.Very easy to fly an accurate grid.
    Cheers
    Don

  7. #27
    Senior Member cubtractor's Avatar
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    Default Re: Do it yourself, Cheap ADS-B, with Raspberry Pi

    Thought I would throw in a picture of my ADS-B receiver. Dual frequency with single antenna with the RY835AI GPS/AHRS chip. It works great(except the AHRS which is still under development) and the antenna reception is great with both dongles wired to the single antenna. I have mounted it on the aluminum as it slides on to the rear deck of my plane and is powered with ships power. I put white adhesive paper on the top to cut down on the sunlight and green house effect of the clear plastic box. Flew to PNC the other day with a couple other planes and when we were all in radar coverage they showed up on Foreflight right next to me exactly where they were visually. Foreflight even called them out as traffic a couple times, audibly and visually on screen. Scared the crap out of me as I usually only hear that flying for a living, not expecting it in this one, but that's good.

    Mike Bentley
    Model IV-1200
    Jabiru 2200A #438
    Rotec Aerosport LCH Heads
    Ellison EFS-2 Throttle Body
    Prince Prop (64x34)
    My SPOT Page

  8. #28
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    Default Re: Do it yourself, Cheap ADS-B, with Raspberry Pi

    How well does the RY835AI GPS work for you? I'm thinking about adding GPS
    to mine. You mentioned the AHRS is a little off yet ... That Stratux Pi, is
    worth every penny.

    Jeff

  9. #29
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    Default Re: Do it yourself, Cheap ADS-B, with Raspberry Pi

    Someday, before ADS-B becomes mandatory, I hope someone will translate this thread from electrical engineer to English...
    Av8r3400
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  10. #30
    Senior Member cubtractor's Avatar
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    Default Re: Do it yourself, Cheap ADS-B, with Raspberry Pi

    It works pretty well. I usually receive 10 to 12 satellites. It shows 10 meter accuracy on Foreflight. I thought it would do better due to it being a WAAS capable gps module but apparently it has something to do with the coding to Foreflight. My position visually is always spot on. I questioned them about it and I'll post the link to the comment below. I think eventually they will work the codeing to show WAAS accuracy on Foreflight. It should show 3 meters or less for accuracy.
    I have been following the conversation on Github about the AHRS and they are working on it. It's a tough nut to crack as there are several factors that go into making the AHRS work correctly.

    https://www.reddit.com/r/stratux/com.../gps_accuracy/
    Mike Bentley
    Model IV-1200
    Jabiru 2200A #438
    Rotec Aerosport LCH Heads
    Ellison EFS-2 Throttle Body
    Prince Prop (64x34)
    My SPOT Page

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