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Messages - Admin

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3226
General Discussion / Re: booting for the first time
« on: September 12, 2015, 01:22:16 pm »
Hi Anne,

Hmm, no signal sounds like a hardware fault, even without software you should get
the 'rainbow' screen
Can you also check that the contents of PilotAware, not the PilotAware folder itself are
placed in the root of the SD card

thx
Lee

3227
General Discussion / Re: Android
« on: September 12, 2015, 12:50:41 pm »
Quote
Thanks to all of you Aviatechnogeeks  for making this a reality.

Alan, I have absolutely no idea to whom you are referring ::)

3228
General Discussion / Re: PilotAware Latest Release 20150911
« on: September 12, 2015, 12:48:00 pm »
Quote
Thanks for the new version,  I note the added UDP functionality, does this break the ability for IOS to use Cellular for Internet whilst connected to the PilotAware WiFi network?

Yes this is very annoying  >:(
Anybody with networking experience please give me some advice.

In order to get UDP broadcasts to work from the iOS device to PilotAware, it seems I have to
define the PilotAware as both router and dns. This then causes the iPhone to stop accessing
out of its 3G connection data connection.

If I cannot get a good solution for this, I think I need to go back to Chris and rather than issue a broadcast, we will have to send the UDP data specifically to 192.168.1.1

Thx
Lee

3229
General Discussion / Re: Android
« on: September 12, 2015, 12:44:26 pm »
As far as I know the Android app provides exactly the same data and format as the original iPhone app, over the same type of connection. I don't think the Pi can tell what type of device is providing the GPS data and so it shouldn't matter. The mini webserver is a  slightly newer development however.
Chris

Almost correct  :)

Your App is using UDP, my app is using TCP.
I think UDP is a better approach, it is a lot more forgiving to wifi dropouts because it does not look for an ACK. TCP can block waiting for an ACK when it is simply better to send again

Thx
Lee

3230
General Discussion / Re: Android
« on: September 12, 2015, 12:28:49 pm »
New release imminent to support this, uploading now ....

3231
General Discussion / Re: Enhancement Requests
« on: September 12, 2015, 10:04:11 am »
Gps is work in progress.
Parser is done, just need to put something into the OS to statically
identify the USB ports, all RS232 devices appear the same so need
a method to indicate the type of device

Thx
Lee

3232
General Discussion / Re: Android
« on: September 12, 2015, 09:25:57 am »
Android app available on Google Play Store. Look for PilotAwareAndroid . Should work out of the box

Hi Chris
Just when you thought you were all done 😉
At some point I want to deprecate the $P3IGGA syntax, and replace with
The NMEA sentences using $GPGGA and $GPRMC
http://www.gpsinformation.org/dale/nmea.htm#nmea
This then smooths the path for incorporating a GPS device, so I have
one common parser

Just reformatting data so should be pretty straightforward - I hope

Thx
Lee

3233
General Discussion / Re: CollisionAware Dropout / Disconnect
« on: September 12, 2015, 07:29:19 am »
Interestingly, this didn't occur with ARF disconnected / not installed. With just the DVB-T receiver, it stayed up and stable for about 5 hours...

Hmm, this really does sound like a power issue doesn't it.
When the ARF pulses, it draws an additional 330mA, if it pulls down the power rail it will reboot the RPi.
You mentioned you had a good quality supply, the USB cable also needs thick wire for power, I think the best you can get is 20 AWG, the smaller the number, the thicker the wire.
Do you know the spec for the USB cable ?

I think we need a bespoke power cable, which has a very low resistance, and hence low voltage drop. It only requires the power and ground, the data is unused.
If anyone can find a good reference please post a link

I have been using these
http://vi.raptor.ebaydesc.com/ws/eBayISAPI.dll?ViewItemDescV4&item=271929181905&category=123422&pm=1&ds=0&t=1442039556565

Thx
Lee

3234
General Discussion / Re: CollisionAware Dropout / Disconnect
« on: September 11, 2015, 07:38:04 pm »
Phew
Everytime i hear about dropouts I get very nervous
I have spent a lot of time tuning to mitigate these issues, ie power level
Mode g not mode n, etc

Hopefully interference in your home
As mentioned previously maybe a selectable channel and power level

Thx
Lee

3235
General Discussion / Re: Help for PilotAware Virgin
« on: September 11, 2015, 07:35:34 pm »
Dry assembly is the approach I take too, but I have a little jig
The blue light is a heartbeat, it should flash once a second

Thx
Lee

3236
General Discussion / Re: CollisionAware Dropout / Disconnect
« on: September 11, 2015, 06:39:11 pm »
Is it easy to change the WiFi Channel Number? I have a very low sig 40Mz bandwidth user (a neighbour judging by the SSID name) across channels 4-12 (git) and I'd quite like to change to Channel 1 which is one of my AP's I can switch off. Again, perhaps a config option in the web interface would be handy?

OK, looks like I need to add something into the web interface.
Maybe I should add a power level at the same time.
At the moment it is right down at 5mW, but I see a high signal strength

Thx
Lee

3237
General Discussion / Re: CollisionAware Dropout / Disconnect
« on: September 11, 2015, 05:28:09 pm »
Hi All

Can I ask how you are supplying power to the RPI ?

Thx
Lee

3238
General Discussion / Re: Help for PilotAware Virgin
« on: September 11, 2015, 05:27:09 pm »
That was a swift answer but you are talk to " no electronics person??!!"
I can see the letter JMP but other than that it appears exactly the same as your photo in the build instructions.
Is the one shown there correct or does that need modifying?

Now I am going to guess!
 To follow your "power up the board and test the supplies" I wonder if it is a case of 5.5volts across pin10  row 3 and pin1 row 3, and then look for 3.3 volts between pin 9and GRND and also pin 8 and GRND?

Looking from the back of the Xbee adapter, you should measure 3.3v going into the ARF so that is column 4, row 10, GND column 4, row 1

3239
General Discussion / Re: Help for PilotAware Virgin
« on: September 11, 2015, 01:47:09 pm »
If the JMP is in place, than you can simply swipe it off with a hot soldering iron
I would recommend powering up the board, and testingthe supplies with a multimeter

3240
General Discussion / Re: CollisionAware Dropout / Disconnect
« on: September 11, 2015, 01:21:59 pm »
Actually there could be an issue here.

Stephen, are you saying that the green slider bar in CollisionAware has moved to the off position ?
This means that the connectivity to PilotAware was lost for this application.
Efectively we have 2 WiFi connections

1. CollisionAware <=> PilotAware

and

2. PilotAware <=> Skydemon

this would imply that connection (1) was broken, if you did have a monitor connected, you would see a message saying
listening for connection on 2001

Indicating that the connection was indeed lost

I am planning to replace CollisionAware on connection (1) with GPS NMEA, which can supply TCP & UDP connections,
then I plan to make (1) a UDP connection, this does not complain if there are intermittant drops, whereas TCP
connections require a connection to be remade, much less tolerant

One other note, PilotAware WiFi runs on channel 9 at a low 5mW power, I wonder if this could be suffering from higher
power WiFi routers in the same vicinity possibly on the same channel ?

Thx
Lee

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