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

[cubtractor]

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.

[Paul Z]

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.

[kitfox2009]

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

[cubtractor]

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.

[n85ae]

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

[Av8r3400]

Someday, before ADS-B becomes mandatory, I hope someone will translate this thread from electrical engineer to English...

[cubtractor]

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/

[cubtractor]

They have posted an instructional page that makes it really simple.

http://stratux.me/

[henrysamson]

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

I could not understand the FAA plan but apparently a lot of pilots are confused. The 1090 traffic is not going to be rebroadcast on 978:

https://www.reddit.com/r/stratux/com...cast_tisb_in/?

[n85ae]

This doc explains it pretty well:

http://www.avidyne.com/publications/...B-Overview.pdf