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[01:07] <Yoyojoe> Hi
[01:07] <SpacenearUS> New position from 03JSKY after 035 days silence - 12http://tracker.habhub.org/#!qm=All&q=JSKY
[01:08] <mfa298> Hi Yoyojoe
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[05:06] <arko> new video on loon https://www.youtube.com/watch?v=HOndhtfIXSY
[05:13] <SpacenearUS> New vehicle on the map: 03DC2EH-8 - 12http://tracker.habhub.org/#!qm=All&q=DC2EH-8
[05:23] Nick change: Hes_ -> Hes
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[06:07] <SpacenearUS> New vehicle on the map: 03mine_chase - 12http://tracker.habhub.org/#!qm=All&q=mine_chase
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[06:37] <SpacenearUS> New vehicle on the map: 03E29AJP-11 - 12http://tracker.habhub.org/#!qm=All&q=E29AJP-11
[07:05] <SpacenearUS> New vehicle on the map: 03YO3FVR_chase - 12http://tracker.habhub.org/#!qm=All&q=YO3FVR_chase
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[07:13] <infaddict> morning all
[07:18] <Upu> morning
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[07:34] <SpacenearUS> New position from 03GKCV3B after 0313 days silence - 12http://tracker.habhub.org/#!qm=All&q=GKCV3B
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[07:46] <SpacenearUS> New position from 03K6RPT-11 after 03a day silence - 12http://tracker.habhub.org/#!qm=All&q=K6RPT-11
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[08:07] <SpacenearUS> New vehicle on the map: 03WIDE1-1 - 12http://tracker.habhub.org/#!qm=All&q=WIDE1-1
[08:09] <fsphil> hehe
[08:15] <f6aiu> K6RPT-11 on europe 144.800 or 144.390 ?
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[08:43] <fsphil> I believe it changes to 144.800 now
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[09:15] <SpacenearUS> New vehicle on the map: 03YO3FVR-7_chase - 12http://tracker.habhub.org/#!qm=All&q=YO3FVR-7_chase
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[09:18] <Upu> must have changed
[09:18] <Upu> Azores are on 144.800
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[09:27] <lz1dev> !aprs info wide1-1
[09:27] <SpacenearUS> 03lz1dev: 03WIDE1-1 was near 03Sankhaburi District, Chai Nat, Thailand 10(15.0015,100.18533) at 0329147 meters about 03an hour ago - 12http://aprs.fi/info/WIDE1-1
[09:27] <SpacenearUS> 03lz1dev: Path: 03WIDE1-1>E29AJP-11 via 03HS6KLJ-7*,qAR,HS6KLJ-7
[09:27] <SpacenearUS> 03lz1dev: Symbol: 03/O Speed: 0339kmph Course: 03296°
[09:27] <SpacenearUS> 03lz1dev: Comment: 0307.3V 23C HDOP00.7 SATS12
[09:27] <SpacenearUS> 03lz1dev: Status: 03PLXDigi solar cell PS=13.6V,Spender 144H
[09:28] <lz1dev> :|
[09:34] <fsphil> wait that's an actual flight?
[09:36] <lz1dev> nah someone testing
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[10:09] <SpacenearUS> New position from 03IK8SUT-11 after 0319 hours silence - 12http://tracker.habhub.org/#!qm=All&q=IK8SUT-11
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[11:36] Nick change: fl_0|afk -> fl_0
[11:39] <Laurenceb_> sup edmoore
[11:40] <Laurenceb_> have you ever come across any good books on high speed rotor stuff ?
[11:40] Action: Laurenceb_ is having problems with whirl modes :-/
[11:42] <SpeedEvil> In principle, ##engineering or ##mechanics might be good - but they are a bit dead. ##physics perhaps.
[11:42] <Laurenceb_> yeah
[11:42] <Laurenceb_> i doubt anyone on irc is going to help with this :-/
[11:42] <edmoore> Laurenceb_ no not really
[11:43] <edmoore> i did take a course of rotordynamics once
[11:43] <edmoore> at the magnetic bearing place i worked
[11:43] <Laurenceb_> ah
[11:43] <edmoore> we used the magnets to keep the stable when running supercritically and to stop subsynchronous whirl and so on
[11:43] <edmoore> but... this was a decade ago
[11:43] <Laurenceb_> yeah, active is easier
[11:44] <edmoore> and i only had a-level maths then so it barely went in in the first place
[11:44] <Laurenceb_> heh
[11:44] <Laurenceb_> I have a syncronous whirl mode that starts up when the chassis is quite close to the rotor in total mass
[11:44] <Laurenceb_> trying to understand it and failing :-/
[11:45] <Laurenceb_> time more detailed sim code, i guess
[11:45] <Laurenceb_> *for
[11:45] <edmoore> yeah this is basically well beyond my foo i'm afraid
[11:46] <Laurenceb_> mine too lol
[11:46] <SpeedEvil> What is the resonance of the support plate compared to the rotor speed?
[11:46] <Laurenceb_> of massively lower
[11:46] <Laurenceb_> like 10hz compared to >100hz for the rotor
[11:47] <Laurenceb_> the chassis is moving in ~antiphase like you would expect
[11:47] <Laurenceb_> i need a better camera, 240fps just doesnt cut it
[11:48] <Laurenceb_> time to go back to matlab :S
[11:48] <edmoore> could you rig up a strobe?
[11:48] <edmoore> and mix down
[11:48] <Laurenceb_> yeah thats a good plan
[11:49] <Laurenceb_> I'll see if i can get my hands on one next week
[11:49] <Laurenceb_> I know its to do with the nonideal bearings in using, but im not sure why the chassis effects it
[11:50] <edmoore> those cree 3W led things make decent strobes
[11:50] <Laurenceb_> the "bearings" are just silicone/PTFE pads, so a radial offset gives differing friction forces on the rotor
[11:50] <Laurenceb_> oooh nice plan, thanks
[11:50] <edmoore> the 'white' domestic lighting ones are a shorter wavelength led with a floursencing coating
[11:50] <edmoore> the coating take s awhile (relatively) to stop glowing
[11:50] <edmoore> much slower than the actual pure led decay anyway
[11:50] <Laurenceb_> yeah
[11:51] <edmoore> so you might want a pure wavelength led
[11:51] <Laurenceb_> I could just use a spare pin on the discovery board im using to sequence everything, simple
[11:51] <edmoore> equally the turn-off maybe well be still fast enough
[11:51] <Laurenceb_> yeah
[11:52] <Laurenceb_> other option is CO2 cartridges, pyro protractor to fire, and "air" bearings
[11:52] <Laurenceb_> but very silly to go to that at this stage I think
[11:53] <edmoore> mmm
[11:53] <Laurenceb_> also air bearings with a large gap have quite poor damping coefficient
[11:53] <edmoore> so what's the actual issue atm?
[11:53] <edmoore> it's trying to shake itself to bits?
[11:53] <Laurenceb_> yes
[11:54] <Laurenceb_> the idea is it aligns the "rotor" along its principle axis
[11:54] <Laurenceb_> you know what the rotor is :P
[11:54] <edmoore> ah yes
[11:54] <Laurenceb_> it works fine clamped to a bench
[11:54] <edmoore> so just affixed at the bottom
[11:54] <edmoore> and sort of caged at the top
[11:54] <edmoore> but non contact
[11:54] <Laurenceb_> suspended from ceiling it goes into whirl mode
[11:56] Nick change: fl_0 -> fl_0|afk
[11:56] <edmoore> so it wants to be rotating about an axis with a higher MoI?
[11:56] <Laurenceb_> no
[11:56] <Laurenceb_> its fine rotating about the one with smallest MoI
[11:57] <Laurenceb_> but theres a nasty interaction between the bearings and chassis
[11:57] <Laurenceb_> I'm not sure if this is even a whirl mode
[11:57] <Laurenceb_> or a whip mode instead
[11:57] <Laurenceb_> its a CoM oscillation I'm seeing
[11:58] <Laurenceb_> whirl modes all seem to be well damped as my simple sim code would suggest
[11:58] <Laurenceb_> hmm I'll grab some frames from the video
[11:59] <Laurenceb_> if i can remeber how to use ffmpeg on headless file server :-/
[12:07] <Laurenceb_> lol jpeg quality
[12:07] <EI2KK> https://www.youtube.com/watch?v=RJKDPZrCZwA
[12:08] <Laurenceb_> http://imgur.com/iXzDbrY,igTtKfS
[12:09] <Laurenceb_> first <foo> in "space"
[12:09] <Laurenceb_> nice burst
[12:10] <Laurenceb_> so that imgur link is two consecutive frames as its oscillating
[12:10] <Laurenceb_> there seems to be little phase offset between the top and bottom
[12:10] <Laurenceb_> more of a CoM coupling effect
[12:12] <edmoore> one day soon there <assorted bullshit> in space meme will die
[12:12] <edmoore> one day
[12:12] <edmoore> the*
[12:16] <Laurenceb_> hmm
[12:16] <Laurenceb_> matlab says I've screwed it up with the "bearing" design
[12:17] <Laurenceb_> with a rigid chassis, I need friction coefficient <0.06
[12:17] <Laurenceb_> thats ballpark PTFE dynamic friction
[12:18] <Laurenceb_> so it probably only works by a small margin
[12:19] <Laurenceb_> I niavely assumed it was stable as it runs with an M4 bolt inside or whilst being hit with a mallet, but i think those are testing different aspects of the damping
[12:20] <Laurenceb_> tho I've seen film of early jet engines being hit with a mallet :P
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[12:23] <gonzo_> there was the classic chicken cannon videos, testing bird strikes
[12:23] <gonzo_> and the associate frozen chicken story
[12:24] <Laurenceb_> thats to test blade impact performance
[12:24] <Laurenceb_> not rotor stability (at least not just stability)
[12:25] <Laurenceb_> there is one way to make this work according to sim code
[12:25] <Laurenceb_> CO2 injection into the bearing pads
[12:26] <Laurenceb_> that would get stupidly heavy
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[12:35] <EI2KK> anybody knows K6RPT-11 frequency? Why freq is allways 'top secret'?
[12:36] <edmoore> Laurenceb_ also co2 might be liquid or solid at the operatal temp/pressure
[12:37] <Laurenceb_> yeah, tho its going to be insulated
[12:37] <Laurenceb_> vacuum lubricants might help
[12:37] <Laurenceb_> I need to add finite chassis mass to the simulation first
[12:38] <Geoff-G8DHE-Lap> K6RPT-11 is APRS on 144.8 I believe now its over Europe ..
[12:38] <EI2KK> so is it APRS only?
[12:39] <Geoff-G8DHE-Lap> Well its "Received 33s ago via: APRS CU3HY" on the map!
[12:40] <EI2KK> lol.. CU3 is Azores.. long way to Europe :)
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[12:46] <SpacenearUS> New vehicle on the map: 03KA5HND-1 - 12http://tracker.habhub.org/#!qm=All&q=KA5HND-1
[12:57] <SpacenearUS> New vehicle on the map: 03KB3ZZI-9 - 12http://tracker.habhub.org/#!qm=All&q=KB3ZZI-9
[12:57] <SpacenearUS> New vehicle on the map: 03W3EAX-9 - 12http://tracker.habhub.org/#!qm=All&q=W3EAX-9
[12:58] <SpacenearUS> New vehicle on the map: 03KC3EMR-11 - 12http://tracker.habhub.org/#!qm=All&q=KC3EMR-11
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[13:12] <SpacenearUS> New vehicle on the map: 03SQ7PFS - 12http://tracker.habhub.org/#!qm=All&q=SQ7PFS
[13:14] <KM4FSW> pretty sure K6RPT is APRS only
[13:14] <KM4FSW> i have the same tracker
[13:18] <Laurenceb_> uh oh
[13:18] <Laurenceb_> http://www.cp-ltd.co.uk/wp-content/uploads/2011/09/PTFE-Sliders.pdf
[13:19] Action: Laurenceb_ is operating at bearing loading of ~1kg/cm^2
[13:19] <Laurenceb_> its all nonlinear
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[13:33] Nick change: Elwell_ -> Elwell
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[13:49] <SpacenearUS> New vehicle on the map: 03YO3FVR-10_chase - 12http://tracker.habhub.org/#!qm=All&q=YO3FVR-10_chase
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[14:34] <SpacenearUS> New position from 03PS-41 after 0313 hours silence - 12http://tracker.habhub.org/#!qm=All&q=PS-41
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[14:48] <fsphil> nice, still going strong
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[15:08] <infaddict> hi guys, since upgrading to Arduino software 1.6.0 I cant seem to upload my code to the board. getting stk500_getsync() not in sync, programmer not responding error
[15:08] <infaddict> any ideas? I had to reset my board and port options after upgrade.
[15:10] <edmoore> defoinitely got the right arduino board and comms port set up in the new ide?
[15:10] <edmoore> tools - board - [arduino type]
[15:10] <edmoore> tools - port - ttyXXXX (or COMx or whatever)
[15:11] <infaddict> yer i have Mini or Mini Pro, then I've chose 3.3V 8Hmz. which matches my board of a Arduino mini pro 3.3v
[15:11] <infaddict> then I've chosen the serial usb port (which vanishes if i unplug so think its the right one)
[15:11] <infaddict> the port is different name to what is was before software upgrade however
[15:12] <edmoore> hmm, we'll i'd try the old port if it's still an option although it sounds like you've idenitified that this is the right one
[15:12] <infaddict> its weird just restarting GUI again
[15:13] <infaddict> ha and now it magically works without me changing anything. after 2 GUI restarts! thx for help edmoore
[15:13] <edmoore> lol
[15:13] <edmoore> gotta love computers
[15:14] <infaddict> the arduino upgrade basically wipes out all settings
[15:14] <infaddict> crap
[15:14] <infaddict> whoooa now its looping my setup() as if the board is restarting itself. same code that worked fine before.
[15:15] <infaddict> wtf
[15:15] <Laurenceb_> edmoore: I fail at logic
[15:15] <Laurenceb_> http://www.me.utexas.edu/~bryant/courses/me383s/DownloadFiles/LectureNotes/BoundaryLubrication.pdf
[15:16] <Laurenceb_> first page, all I need is the correct lubricant
[15:16] <Laurenceb_> 2 orders of magnitude reduction in friction -> two orders of magnitude more stability margin
[15:17] <edmoore> wow
[15:17] <edmoore> i know zero about all this
[15:18] Nick change: mheld_ -> mheld
[15:20] <Laurenceb_> heh, it looks useful knowledge
[15:20] <infaddict> so my perfectly stable code (in earlier version) now causes the board to restart immediately in the main loop(). Time to start commenting things out!
[15:21] <Ian_> Confirm for me infaddict that it's not possible to have old and new IDE on the same computer. On Linux "arduino" directory is where the programs reside and "Arduino-1.5.7" the IDE version. Implying that "Arduino-1.6.x" will be the new one. Gotta play clever to preserve anything sensitive /
[15:22] <infaddict> Ian_: not sure, I'm on OSX so the whole thing is a packaged application file
[15:22] <infaddict> Guessing I could rename the application and have 2 versions
[15:22] <Ian_> ".arduino" has an old preferences.txt ".arduino15" has a preferences.txt which is current and I assume that if I upgraded to the latest I would have a ".arduino16" preferences.txt
[15:23] <Ian_> I know that any change is likely to have us tearing hair out as they screw around with everything that we thought we knew already . . .
[15:24] <Ian_> I don't know what advantages 1.6 bring with it, but I dread what will be changed and disenfranchise me for the next week and more if I upgrade now.
[15:26] <Ian_> Pity the poor guy on a project deadline that steps into the noose and finds himself in a tree suspended by an ankle over a pit of sharp stakes. Prefer bitter and steaks personally :)
[15:27] <infaddict> lol
[15:27] <Ian_> indeed
[15:27] <Ian_> Good luck
[15:27] <infaddict> narrowed the restart down to a few GPS calls so soon will find out exactly which statement
[15:27] <infaddict> as i say none of this code has changed
[15:27] <edmoore> Ian_, bitter and steak is an absolutely splendid idea
[15:28] <Ian_> Brings the conference to mind
[15:28] <edmoore> infaddict, does your new board setting definitely have the same clock speed as the old one?
[15:29] <infaddict> cant actually remember exact wording of old GUI choice (i set it once 4 months ago and left it)... but pretty sure old GUI did NOT have 2 separate menus for board and speed like new one does
[15:30] <infaddict> so in new GUI you choose your board type, then in a separate menu you choose the processor and clock speed
[15:30] <Ian_> A couple of years ago memcheck86+ distributed on the SUSE release was wonk. No changes at all for quite a while but it was definitely bent. A few months later the truth started to leak out. The compiler used was a newer version of GCC and somehow it optimised registers differently and at least in my case had two computers do a round trip to eBuyer.
[15:31] <Ian_> Who would have thought.
[15:32] <Ian_> The speed and board parameters were always part of boards.txt, definitely not separate options. You would have to make a second board definition if you wanted two different speeds.
[15:33] <Ian_> That actually sounds like a bit more flexibility in the new version, although not exactly helpful for yourself.
[15:34] <infaddict> I think its an interrupt issue
[15:34] <infaddict> just proving it by disabling interrupts
[15:34] <Ian_> There be dragons . . . not fully interrupt savvy here yet.
[15:34] <infaddict> doh i've disproved it
[15:35] <SpacenearUS> New vehicle on the map: 03W2KGY-12 - 12http://tracker.habhub.org/#!qm=All&q=W2KGY-12
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[15:40] <Laurenceb_> http://farm3.static.flickr.com/2283/2281452569_e6024b6c66.jpg
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[15:42] <infaddict> aha i have proved its in the SD card logging section. I'm using SDfat library so maybe something in there no longer working in new version.
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[15:47] <infaddict> what should the "Programmer" option be set to in Arduino GUI? I cant remember ever setting that in old one. New one has defaulted to "AVRISP mkII"
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[15:50] <josep_> Dear all. I need a payload validation and a permit to fly next saturday 9 am
[15:50] <josep_> Doc ID:8f8e6d2adc0c49791470c3a9649e296c
[15:51] <infaddict> josep_: post in in #habhub and someone will approve
[15:51] <Ian_> That is what it is set at with my 1.5.4 release and I am programming via the USB.
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[15:52] <infaddict> thanks Ian_... I am getting strange behavior with the restart happening at random points, not 1 single point. hence me thinking interrupts but still happens with them disabled. grrr
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[15:53] <Ian_> It's called progress . . . just takes a bit of believing at times :)
[15:53] <infaddict> i might just go back to old version ;-/
[15:55] <Ian_> I think that there is probably a case for keeping the original IDE that a project was developed using, otherwise you get bitten by a variety of unexpected decisions taken by the IDE developers who are probably not backwardly compatible themselves.
[15:56] <Ian_> It certainly helps the understanding when you have to get your head under the hood to fix something that wasn't broken previously.
[15:57] <SpacenearUS> New vehicle on the map: 03KD8CJT-11 - 12http://tracker.habhub.org/#!qm=All&q=KD8CJT-11
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[16:02] <Vaizki> http://imgur.com/gallery/Zu4e5wX
[16:02] <Vaizki> cabling porn
[16:03] <Vaizki> infaddict: the "programmer" bit in arduino gui is only used when putting a bootloader on a "bare" chip
[16:03] <edmoore> must be very satisfying to do a nice job like that
[16:03] <infaddict> aha ok thx Vaizki
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[16:08] <Ian_> Thanks edmoore. I guess that it just isn't greyed out, but ignored, when usb programming via the bootloader.
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[16:12] <bradfirj> Afternoon guys, anyone pick up telemetry from that launch that made the beeb?
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[16:14] <infaddict> which launch?
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[16:15] <Geoff-G8DHE-Lap> Do you mean the Stargazing flight for the Eclipse ?
[16:15] <bradfirj> South Gloucestershire balloon 'to capture space images'
[16:15] <bradfirj> http://www.bbc.co.uk/news/uk-england-bristol-32364915
[16:16] <bradfirj> That's a days work for half this channel and the bbc picks one :p
[16:16] <Geoff-G8DHE-Lap> Doesn't sound like they even have a tracker on board, there Artists not engineers!
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[16:17] <bradfirj> One hopes there's an engineer around to help them with things like lift and trackin :/
[16:17] <infaddict> ha agree bradfirj
[16:18] <infaddict> cant believe that made the news
[16:18] <Geoff-G8DHE-Lap> I wouldn't count on it these days :-(
[16:18] <edmoore> there's a roughly 2 month memory with these things
[16:18] <edmoore> before a random one gets redicovered as news
[16:18] <Geoff-G8DHE-Lap> Depends if you tell the News, contact local news for your area and they are only too happy to have something different
[16:18] <edmoore> exactly
[16:18] <edmoore> fun pics and spaaaace
[16:18] <edmoore> it'll fill space nicely
[16:19] <SpacenearUS> New vehicle on the map: 03KM4JIE-11 - 12http://tracker.habhub.org/#!qm=All&q=KM4JIE-11
[16:19] <bradfirj> yarp
[16:19] <mfa298> well it did have a notam, that's something. But I'd bet on spot or gsm tracker at best
[16:19] <bradfirj> My old school did a launch, I thought 'awesome!' and volunteered to help teach the kids about the tracking software and so on
[16:20] <bradfirj> 'no we're just putting an iphone in a waterproof box'
[16:20] <bradfirj> >.>
[16:20] <edmoore> that's been happening a while. there's always* been an off-the-shelf contingent
[16:20] <edmoore> *always = about the last 5-6 yrs
[16:20] <infaddict> depends if your goal is the end result or the journey
[16:20] <edmoore> i'm sure my neighbour is coming apart
[16:20] <infaddict> for kids it should be a bit of both imho
[16:21] <edmoore> my walls are thick but i can hear her doing some very strange song/wail through the wall
[16:21] <infaddict> lol edmoore
[16:22] <infaddict> ive tracked my issue down to a single sprintf statement!
[16:22] <infaddict> sprintf(checkSumStr, "*%04X\n", checkSum); // Format the checksum correctly
[16:23] <infaddict> this used to work. now it causes a board restart!
[16:23] <bradfirj> That's an impressive bug
[16:23] <mfa298> infaddict: buffer overflow perhaps, how big is checkSumStr?
[16:23] <bradfirj> Is it all printfs or just that one
[16:24] <infaddict> just that 1... trial and error commenting stuff out has narrowed it to this one line
[16:24] <infaddict> checking that mfa298...
[16:24] <bradfirj> I had a bug on an AVR where when I started the UART up the board reset, turned out the Vcc line was a bad joint and powering up any peripherals was causing it to only barely function
[16:24] <bradfirj> bringing the uart up tipped it over into brownout
[16:24] <infaddict> char checkSumStr[5+1];
[16:25] <daveake> too small
[16:25] <mfa298> also snprintf is better, you also pass the the size of the string so it so you shouldn't get overruns
[16:25] <gonzo_nb> is the * being interpreted as a formatting param, rather than just a bit of text?
[16:25] <infaddict> checksum is asterisk then 4 digits then newline. so isnt that 6 chars?
[16:25] <daveake> * (1) + %04X (4) + \n (1) + NULL (1) = 7
[16:26] <infaddict> aha null
[16:26] <infaddict> i didnt know about the null. my bad.
[16:26] <infaddict> i therefore probably have this issue in other strings too
[16:26] <daveake> likely
[16:27] <infaddict> so size should be content+2?
[16:27] <daveake> +1
[16:27] <daveake> content is 6
[16:27] <bradfirj> I would try and keep it dynamic at all times though, hardcoding numbers == bad
[16:27] <daveake> 1 + 4 + 1
[16:27] <infaddict> right ok, guess it depends if u count the \n as content
[16:27] <daveake> it is content
[16:28] <infaddict> ok thx all, will recheck all my code now
[16:28] <infaddict> i'd expect a memory leak or bad data, not a restart but there you go!
[16:31] <gonzo_nb> depends what it was overruning into
[16:32] <mfa298> infaddict: depends on what you're overwriting. You could be hitting something vital to it normally running properly, or it could be leading to somethign else then falling over.
[16:32] <infaddict> very true
[16:32] <infaddict> weird it didnt happen on old version of GUI tho. same code, same wrong length on string.
[16:33] <mfa298> the compiler may have put the variable in a different bit of memory or optimised things slightly differently
[16:33] <daveake> GUI? You mean IDE? Anyway a change in the compiler may well make it crash or not crash
[16:33] <infaddict> yer sry the IDE
[16:33] <infaddict> i upgraded today and it stopped working with this bug
[16:34] <gonzo_nb> good job. you msy have not found it
[16:34] <infaddict> yep always glad to find bugs
[16:34] <mfa298> the code on the actual chip is dependant on the source code you've written and the compiler (what happens as part of the build & program process)
[16:35] <daveake> Quite likely it's updated libraries that have moved stuff around
[16:35] <infaddict> yep, really glad i added some code to re-do flight mode every 5 mins. otherwise i might not have spotted this.
[16:36] <infaddict> good news is the flight mode code works (<100ms) and doesnt interrupt lock/fix
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[16:36] <infaddict> havent decided if 5 is the right number yet tho
[16:41] Action: infaddict feels calm again
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[17:20] <bradfirj> Sadly he is gone, but I would have tried varying compiler options
[17:20] <bradfirj> If you muck with the stack start location that would rule out memory overrun clobbing something specific
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[17:27] <SpacenearUS> New vehicle on the map: 03DC2EH-6 - 12http://tracker.habhub.org/#!qm=All&q=DC2EH-6
[17:31] SQ7HJL (25070f9b@gateway/web/freenode/ip. joined #highaltitude.
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[17:32] <HA6NN> Hello all :)
[17:32] <HA6NN> Dopes anyone hear SQ7PFS on 434634,5 kHz?
[17:33] <HA6NN> Does anyone hear SQ7PFS on 434634,5 kHz?
[17:37] <HA6NN> Any activity here?
[17:38] <craag> Hello :)
[17:38] <craag> Unfortunately I'm probably too far away to hear it
[17:41] <HA6NN> Hello Craag, Thx for answering! Seems this balloon is flying towards the North -away from my QTH.
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[17:43] <craag> !track SQ7PFS
[17:43] <SpacenearUS> 03craag: Here you go - 12http://tracker.habhub.org/#!qm=All&q=SQ7PFS
[17:44] <craag> HA6NN: Last position was 3 hours ago, I reckon it'll have landed by now.
[17:45] Lunar_Lander (~kevin@p54889026.dip0.t-ipconnect.de) joined #highaltitude.
[17:45] <Lunar_Lander> evening
[17:47] <HA6NN> craag: Saw the notes a short time before... Thx info!
[17:48] <HA6NN> By for now! 73 GL
[17:50] <craag> 73s!
[17:51] <SQ7HJL> tracker SQ7PFS probably is not operate properly
[17:51] <SQ7HJL> its freezed
[17:52] <craag> :/
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[17:57] <SQ7HJL> but I hear something on 434,626 USB in JO91QI
[17:58] <SQ7HJL> this is not operate properly too (I can't decode)
[18:01] <SQ7HJL> what could it be?
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[18:15] <SA6BSS-Mike> SQ7HJL: some info here JO91QI
[18:15] <SA6BSS-Mike> http://sp7pki.iq24.pl/default.asp?grupa=230409&temat=419750
[18:24] <SpacenearUS> New vehicle on the map: 03WB8ELK-1 - 12http://tracker.habhub.org/#!qm=All&q=WB8ELK-1
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[18:29] <SQ7HJL> thank you Mike, it's not that
[18:32] <SQ7HJL> SQ7PFS flew toward HA, I hear something over me now
[18:33] <SpacenearUS> New vehicle on the map: 03UCDAV1-11 - 12http://tracker.habhub.org/#!qm=All&q=UCDAV1-11
[18:45] SP9UOB-Tom (~verox@2a01:1d8:9004:1::dead:beef) joined #highaltitude.
[18:48] <SpacenearUS> New vehicle on the map: 03EDUPIC_Alt1 - 12http://tracker.habhub.org/#!qm=All&q=EDUPIC_Alt1
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[18:52] <SpacenearUS> New position from 03JSKY after 0318 hours silence - 12http://tracker.habhub.org/#!qm=All&q=JSKY
[19:04] Nick change: fl_0|afk -> fl_0
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[19:18] <Rohan_> Hi
[19:18] <Rohan_> So, once I have a flightdoc up
[19:18] <Rohan_> Where should I go to get it approved?
[19:18] <Rohan_> Here, I think?
[19:18] <daveake> #habhub
[19:18] <craag> Rohan_: Post the doc id in #habhub
[19:18] <Rohan_> Ahh okay. Thankyou
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[19:19] <hiflyer> hi guys, I'm using an arduino with the adafruit GPS and the NTX2B. Both of these devices work perfectly independently of each other but when used together the GPS device seems to stop the rtty being transmitted properly. any ideas?
[19:19] <daveake> Someone should put this useful information on the http://habitat.habhub.org/genpayload/ page
[19:20] <mfa298> hiflyer: are you using software serial ?
[19:20] <daveake> mfa298 beat me to it
[19:20] <hiflyer> yeh, the adafruit gps library uses it
[19:20] <mfa298> daveake: it's almost as if we've heard of this issue before ;)
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[19:21] <daveake> please don't use software serial
[19:21] <mfa298> that's almost certainly your problem, it does nasty things to timing
[19:21] <daveake> it's the work of the devil
[19:21] <hiflyer> ah thanks guys, what do i use instead?
[19:21] <edmoore> use hardware serial
[19:22] <bradfirj> You just need to tweak the adafruit library, that exact change is explained in the comments I think
[19:23] <hiflyer> brilliant, I'll have a look - many thanks
[19:23] <Upu> interesting
[19:23] <daveake> also, which adafruit gps ?
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[19:23] <mfa298> hardware serial is likely to be the best solution - although you may need to remove the gps to program the arduino
[19:24] <hiflyer> https://www.adafruit.com/products/746
[19:28] <Geoff-G8DHE_> Software or Hardware ? "These modules use TTL serial to communicate, 2 pins are required to
[19:28] <Geoff-G8DHE_> interface
[19:28] <Geoff-G8DHE_> "
[19:31] <SpacenearUS> New vehicle on the map: 03JSKY1 - 12http://tracker.habhub.org/#!qm=All&q=JSKY1
[19:37] <hiflyer> apologies if I'm being stupid here but is there any documentation on HardwareSerial i.e. how it is constructed?
[19:39] <mfa298> interesting that adafruit gps page makes no mention of maximum altitude
[19:39] <edmoore> hiflyer, yes there should be on the arduino website
[19:40] <edmoore> it's the default really, and it's software serial that's the odd and painful thing to use
[19:40] <craag> mfa298: Video says 50km..
[19:40] <craag> yeah right :P
[19:41] <mfa298> the linked datasheet pdf (v3) says 18km
[19:41] <craag> ha
[19:41] <hiflyer> thanks edmoore - do i have to connect the gps to pins 0 and 1 on the uno?
[19:41] <edmoore> i'm not sure, I don't use arduinos
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[19:42] <edmoore> yes
[19:42] <edmoore> (just looked at a picture of one)
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[19:46] <hiflyer> urghh - anyone know what this means " conversion from 'HardwareSerial' to non-scalar type 'SoftwareSerial' requested"?
[19:47] <hiflyer> ah nvm - just made a stupid mistake
[19:47] <hiflyer> ill be quiet now :)
[19:49] <edmoore> be prepared for possibly having to get hands a bit dirty here
[19:49] <edmoore> the jump from beginner to novice is the steepest bit of the learning curve
[19:49] <mfa298> some might say the mistake is using "arduino". It's a higher learning curve but leaving the arduino wrappers behind will give you more power with how the device works
[19:51] <hiflyer> ive done a bit of c++ programming for the last few years but its a bit of a shock having to use c functions (snprintf etc)
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[21:16] <edmoore> http://runningahackerspace.tumblr.com/post/116134098029/your-lunar-xprize-project
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[21:57] <amell> in u-center - is there a way to find out current firmware version on the ublox?
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[22:00] <SpacenearUS> New vehicle on the map: 03UCDAV2-11 - 12http://tracker.habhub.org/#!qm=All&q=UCDAV2-11
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[22:24] <amell> For some reason this M8N gps module isnt able to see glonass sats. ive checked the config - all looks correct. any ideas?
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[22:35] <Upu> where did you get it ?
[22:35] <Upu> and what antenna is on it ?
[22:35] <amell> ebay for a quadcopter - its a patch antenna.
[22:36] <amell> im wondering if the antenna is too narrow bandwidth
[22:36] <Upu> possibly
[22:36] <Upu> or it may not be a genuine 8 series internally
[22:36] <Upu> more likely to be the antenna
[22:36] <amell> the config has glonass enabled.
[22:36] <amell> the chip inside sure looks like ublox one
[22:37] <Upu> what number is on it ?
[22:37] <amell> let me open it up.
[22:38] <amell> which number? theres a lot of them
[22:40] <amell> http://imgur.com/95muI5Z
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[23:00] <amell> Upu: antenna here http://imgur.com/yUVkwUz - do you have something that will do glonass as well?
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[23:09] <Upu> yeah any of mine will do glonass
[23:09] <Upu> you have to take the can off the GPS
[23:09] <amell> to get to the antenna?
[23:10] <Upu> probably the antenna causing your issues as that looks genuine
[23:10] <Upu> 413002247820800
[23:10] <Upu> serial no
[23:10] <amell> ok.
[23:10] <amell> it has to fit in quadcopter dome, so needs to be quite thin
[23:11] <Upu> which quad copter ?
[23:11] <amell> mine :)
[23:11] <amell> homebuild.
[23:11] <Upu> ah ok
[23:11] <Upu> I know people have been swapping antenas out for Taoglas Glonass ones I sell
[23:12] <Upu> any how bed time night all
[23:12] <amell> oh really?
[23:12] <amell> i will look at the site, see if i can find the dimensions
[23:15] <amell> yeah that taoglas looks exactly right
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[23:28] <SpacenearUS> New position from 03MTG003 after 032 days silence - 12http://tracker.habhub.org/#!qm=All&q=MTG003
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[23:30] <amell> is there a current discount code for the store&
[23:33] <amell> NO WAY. £4.60 to post a patch antenna!
[23:54] <SpacenearUS> New vehicle on the map: 03VK3YSP_chase - 12http://tracker.habhub.org/#!qm=All&q=VK3YSP_chase
[23:57] <russss> https://twitter.com/elonmusk/status/589577558942822400?s=09
[23:57] <fsphil> is there a launch in VK land today?
[23:57] <amell> that was a quick analysis :)
[23:57] <amell> if it was boeing/nasa, it would have taken them months&
[23:59] <amell> ucenter puzzles me
[23:59] <amell> i have a 3d fix, but cant actually see any satellites?!
[00:00] --- Sun Apr 19 2015