Wi-Fi connection / freeze issue

[john222]

Hello,

I believe I have an issue with my system, can anybody help?

Current configuration (parts):
Raspberry Pi Model B+ 512 MB Mainboard with 8GB MicroSD (Maplin - Code: N53DV)
ARF - High power radio transceiver
XBee/Pro Breakout Board 3.3V to 5V MCU Pitch 0.1" DIP Adapter w 3 LED Indicator
USB DVB-T+DAB+FM HDTV TV Tuner Receiver Stick RTL2832U+R820T2 Tuner Receiver S3 USB DVB-T+DAB+FM HDTV TV Tuner Receiver Stick RTL2832U+R820T2 Tuner Receiver S3
Ralink RT5370 150Mbps USB 2.0 WiFi Wireless Network Networking Card 802.11 b/g/n

Same behaviour happens with the latest release (PilotAware.20150926) and with the one before:

After booting up, it ends up in this state:


Using my PC, I can find the access point, I can connect and see the HTTP page at http://192.168.1.1

But whenever I connect using my Iphone 6 or Ipad, the Rasbperry Pi log flickers and sometimes the images gets garbled (some coloured blocks or lines).
The WIFI connection drops out

I could not get pass this stage even after updating to the latest hardware.


Any ideas? It is the Raspberry Pi or the Wifi dongle?

Thanks

[Admin]

Sounds like a power issue,
Can you describe what you are using for power supply and USB power cable.

Also it is strange you can connect from a PC ok, but not an IPAD ?

Can you post a screenshot when you connect to the web page from your PC ?

[Admin]

I have just re-read your log output, and I can see that there is, a GPS-TCP message, this indicates that CollisionAware has connected

So please clarify, does the system have a problem when you connect to the wifi from the ipad, or when you run up collisionaware ?

When pilotaware gets a valid gps signal it starts transmitting its position, this would take an extra 330ma on the transmit pulse, this seems to fit with a power problem

Thx
lee

[john222]

Yes it's when CollisionAware starts connecting.

It might be a power problem; I'll try with a power bank.

[Admin]

Yes it's when CollisionAware starts connecting.

It might be a power problem; I'll try with a power bank.

Hi john, also what is the usb cable you are using ?
Really needs to be 20awg for the power

Thx
Lee

[john222]

Turns out, cable was good but the AC adapter probably didn't provided enough power.

Now with a powerbank (2.1A output) it works just fine.

Next issue is with CollisionAware: when connected, it doesn't display any configuration boxes. It just connects!

But the good thing is, SkyDemon works displaying other AC.

[Admin]

Next issue is with CollisionAware: when connected, it doesn't display any configuration boxes. It just connects!

Hi John,

All configuration has moved into the web interface.
Waiting for Apple to go through their QA procedure is just too long, so I have moved all of the
code out of Apple domain that I can

Thx
Lee

[john222]

Lee,
Thank you! All works fine now.



Tested with FlightRadar:





But.. still a few questions

1. Should we enter QNH every time at departure, in the web interface?
2. Why in the web interface, in the "Pressure Altitude (BMP)" it says "Failed"?
3. How much power does it draws from my portable battery? It's 15.000 mAh but I do charge my Ipad (navigation) and sometimes the GoPro at the same time.
4. How do I safely stop the device? Is there a risk to corrupt files on the microSD card if I just yank the power off?

Do you need help putting together a software installation/configuration manual? I had to really scratch my head here and there, in the end it works but it would make a user's life so much easier if there were a guide. Which could include what to do in case of errors like I received (would make your life easier, not having to answer all silly questions all the time)