‌Yes, it's a MPU9250 BMP280 10DOF. I bought it from a local/german seller, but the linked one looks exactly like mine.

Mapping to raspberry pins (fsync isn't required/available):

• ‌3‌V3 ‌- pin 1
• GND - pin 6
• S‌CL - pin 5
• SDA - pin 3

Got my MPU9250+BMP280 module today and connected it to raspberry's GPIO pins. I'm seeing traffic in SD with the latest stratux release... as expected 

I’ve installed the usb gps and Adsb dongles from pilot aware into a pi 3, installed stratus 1.2r2 and SkyDemon is displaying traffic from it. I’ll now order the Stratux dongles to try out this weather uplink from SD HQ. If it works well I’ll try and get one of those AHRS boards shipped from the states.

If a traffic device sends only GPS altitude and not pressure altitude, we could not possibly give advice on other traffic because we would have no way of determining their relative altitude.

Traffic is shown in Avare with recent stratux builds, but not in SD. Last working version with traffic in SD is Stratux 1.3b2.

Starting with stratux 1.3 ahrs support was added and improved with later releases. Before 1.3b3 stratux sent gps altitude as pressure altitude if pressure alt wasn't available.‌‌ This was removed with 1.3b3 and pressure altitude is send as invalid. However, gps altitude is send correctly. It looks like SD relies on pressure alt. Connecting an MPU9250 with BMP280 should solve the issue (https://github.com/cyoung/stratux/wiki/All-About-AHRS). Otherwise SD should support using GPS alt if pressure alt isn't available (like other EFB).

Hi DavidC I've just done exactly the same as you. My skydemon connects to the Stratux and is recieving navigational data. I've also set the traffic height band filter very wide, but I see no traffic on SD
‌

I tried my Stratux receiver on a flight yesterday and it connected using the GDL90 protocol. While it did provide navigation (GPS) position data, none of the (many) aircraft it reported was visible onscreen. Once or twice, when I started up and reconnected, nearby aircraft were briefly shown (for about 2-3 seconds) then all disappeared.

I‌f I then connected to a PilotAware, many aircraft were visible.

I‌s there anything in the Stratux or SkyDemon configuration screen that is likely to be worth checking? I did have a wide altitude filter (up to 40,000 feet above/below) and this should apply to both devices.

M‌y Stratux is running the latest build and has both 978 and 1090MHz receivers, so should be ready for any trial of ADS-B uplink, and I'd really like to be able to try that out. I have found that worked quite well in the US with ForeFlight.‌

--- CPL/IR/FI based in South of England

I think you're confusing the two.

T‌he standard Stratux works with GDL-90 and is now supported by Sky Demon.

P‌reviously the correct protocol and IP address for Stratux weren't supported, therefore the specific version above was mentioned which used the Flarm protocol, and also a method was po‌‌sted on how to put Stratux on the correct IP address for this.

I‌f you use the standard Stratux version now, all will be well.
‌‌
A‌s an aside, PilotAware also gives you Mode C and non-ADS-B Mode S bearingless detection, and it also has its own transceiver in it to broadcast to and detect other PilotAware units. I know in the UK they've sold over a thousand units and the more units out there, the greater the number of aircraft which can be seen using such a unit. I only have a Mode C transponder, no ADS-B.‌