highaltitude.log.20121126

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[00:02] <m0psi> check it out!
[00:02] <m0psi> all working now
[00:02] <m0psi> thank you guys
[00:02] <m0psi> and appologies for being a knob! :-(
[00:03] <m0psi> it was a mixture of fixing/realising my mistakes, and your help
[00:03] <m0psi> right
[00:03] <m0psi> i think i'm ready to track craage tomorrow
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[00:17] <m0psi> oh, wow, now dl-fldigi working like a charm
[00:17] <m0psi> decoding my tracker data
[00:17] <m0psi> nice
[00:17] <m0psi> it's taken a while to get to this point
[00:17] <m0psi> but very satisfying indeed
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[03:06] <arko_> Darkside: any photos or video?
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[03:37] Nick change: arko_ -> arko
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[06:42] <arko> girlfriend just arrived from austria
[06:42] <arko> WITH CHOCOLATE
[06:42] <arko> europe wins with chocolate
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[07:11] <griffonbot> Received email: James Coxon "Re: [UKHAS] Low altitude payload tracking"
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[08:20] <eroomde> arko: yo
[08:20] <eroomde> nice
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[08:41] <griffonbot> Received email: Simon Proud "Re: [UKHAS] Low altitude payload tracking"
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[08:42] <Darkside> eek 2.4GHz downlink
[08:42] <The-Compiler> that's what I just thought
[08:42] <The-Compiler> I didn't launch yet, but using 2.4GHz sounds like a horrible idea
[08:43] <eroomde> it should stop ice forming on the payload at least
[08:46] <costyn> eroomde: haha
[08:47] <craag> Morning all. Weather is looking better than expected, just grabbing gfs data for predictions.
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[08:48] <eroomde> i don't think the predicotr needs to know your girlfriend's data
[08:48] <costyn> haha... i was just thinking the same
[08:50] <craag> lol
[08:59] <griffonbot> Received email: Anthony Stirk "Re: [UKHAS] Low altitude payload tracking"
[09:00] <m0psi> morning all
[09:00] <m0psi> all set craag?
[09:00] <griffonbot> Received email: Anthony Stirk "Re: [UKHAS] Low altitude payload tracking"
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[09:04] <costyn> shouldn't we be steering these guys towards an UKHAS-style tracker?
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[09:10] <nosebleedkt> Hi everybody :D
[09:13] <craag> m0psi: Morning. Yep all looking good.
[09:14] <m0psi> cool
[09:14] <m0psi> aren't you glad it's not the weather we had last night!
[09:14] <m0psi> i guess, you planned around that
[09:14] <gonzo___> online here. Should be able to run the home system on vnc
[09:15] <griffonbot> Received email: Philip Crump "Re: [UKHAS] Re: Launch Announcement CRAAG1 Pico 11:00 UTC 26/11/12"
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[09:50] <craag> Balloon is filled, about to set off to launch site.
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[09:52] <m0psi> cool beans
[09:52] <m0psi> is it a drive or a walk away
[09:54] <mfa298> m0psi: about a 30 minute drive.
[09:55] <mfa298> middle of southampton isnt the best launch site.
[09:55] <m0psi> no, are you at the uni?
[09:56] <m0psi> just looking now on the map
[09:57] <mfa298> craag is a student there, and I'm nearby.
[09:58] <m0psi> ok
[09:58] <m0psi> btw, can't hear it yet, i guess it needs to come up for air first
[09:59] <m0psi> mfa298, are you astra, on the tracker map?
[09:59] <mfa298> I'm not on the map at the moment.
[10:00] <mfa298> I'll hopefully appear as M1ARI probably on beacon Hill later as Im joining craag to help with the chase.
[10:01] <m0psi> nice. good luck
[10:01] <m0psi> still predicted to land near Alton?
[10:01] <mfa298> around there, predictions are just to the north of alton
[10:02] <gonzo___> which beacon hill is he launching from?
[10:02] <mfa298> gonzo___: On the South Downs. Somewhere just north of Bishops Waltham
[10:03] <m0psi> it seems that the flight path is going right over the airport. I realise you don't need a notam for a pico, but are you telling them anyway?
[10:03] <gonzo___> Thanks. Will google it
[10:04] <mfa298> Shouldn't be going past southampton airport.
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[10:05] <mfa298> Launch location is lat: 51.001078, Long: -1.148295 or near by
[10:05] <m0psi> oh, right, i was taking a line from his qth, of course launch site is different
[10:05] <mfa298> I think if it was launch from qth it would be very early morning or late night (like the one a week or so back)
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[10:15] <griffonbot> Received email: MikeB "[UKHAS] Re: Launch Announcement CRAAG1 Pico 11:00 UTC 26/11/12"
[10:18] <griffonbot> Received email: Radim Mutina "Re: [UKHAS] Launch Announcement CRAAG1 Pico 11:00 UTC 26/11/12"
[10:19] <griffonbot> Received email: NickB "Re: [UKHAS] Pico Board"
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[10:55] <Elwell> morning all - which of Upu's GPS boards will be better for r-pi interfacing - 3.3 or the 5v arduino one?
[10:56] <daveake> 3.3
[10:58] <Elwell> ok - I wasn't sure as the GPIO pin diagram on the pi says 50mA for the 3.3 supply and I wondered if that was to little for lock
[11:00] <daveake> Fine IME with Ublox or Lassen
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[11:01] <daveake> Consider removing the 3.3V reg on the Pi, and replacing it with a switching reg, for less heat and more battery life
[11:02] <UpuWork> You probably should power the module seperately Elwell
[11:02] <UpuWork> incidentally if you purchase the Arduino 5V one
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[11:03] <UpuWork> you can power it from 5V and the 3V TX and RX are broken out
[11:03] <costyn> UpuWork: is there a reg on the board?
[11:03] <UpuWork> so you get the regulated power and can use 3V serial
[11:03] <UpuWork> there is on the Arduino one yhes
[11:03] <UpuWork> but I also broke the 3V pins out
[11:03] <costyn> ok
[11:03] <Elwell> ok - it's likely to have 2 roles - it'll be running NTP (I see gm8arv - david taylor - has been playing with this) and mostly in one place rather than being a mobile tracking aprs station
[11:04] <UpuWork> http://ava.upuaut.net/store/image/cache/data/bo-m6alc-2-500x500.jpg
[11:04] <daveake> OK, then the 5V GPS is probably the better option
[11:04] <UpuWork> note 3VRX & TX
[11:05] <Elwell> ok - hopefully pre-xmas order (if I finish dissertation)
[11:05] <costyn> UpuWork: ugh... those parts look *so* fiddly to solder :)
[11:06] <UpuWork> well I have a new one designed that uses a level convertor chip and breaks out the I2C as well
[11:06] <UpuWork> however I have 30 of those to shift yet
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[11:07] <Futurity> Morning. Is CRAAG1 still due to launch today?
[11:07] <m0psi> y, on his way
[11:07] <m0psi> a while back, should be there now
[11:07] <m0psi> waiting for him to popup
[11:07] <Futurity> Cool
[11:07] <griffonbot> Received email: Justin Maynard "Re: [UKHAS] Launch Announcement Cloud9 flights"
[11:07] <m0psi> or rather his balloon
[11:07] <daveake> or not pop
[11:07] <costyn> m0psi: :)
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[11:07] <costyn> haha
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[11:08] <GMT> for CRAAG1, what kind of RTTY - shift, speed, etc?
[11:08] <costyn> GMT: it's on spacenear.us: CRAAG1 - 434.191MHZ USB 50baud RTTY 7N2
[11:09] <mfa298> we've arrived at the launch site.
[11:09] <GMT> thanks costyn
[11:09] <m0psi> yay
[11:09] <m0psi> is the tx on yet mfa298?
[11:10] <mfa298> not yet
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[11:14] <gonzo___> spacenearus broken or it';s been cleared down? I don't seem to get the payload info boxes?
[11:14] <costyn> gonzo___: that's because there's no payloads on the map yet
[11:14] <costyn> gonzo___: as soon as CRAAG1 starts transmitting it'll appear
[11:14] <SpeedEvil> :-)
[11:15] <SpeedEvil> we've some way to go till there is always a balloon in the air.
[11:15] <SpeedEvil> hmm
[11:15] <SpeedEvil> what % of time is there? 5%
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[11:15] <gonzo___> ok, cleared down. ta
[11:16] <daveake> About 1 a week on average?
[11:16] <mattbrejza> its on
[11:16] <daveake> Which is about 1.8%
[11:16] <mfa298> tracker is active and has a lock
[11:16] <m0psi> there she blows
[11:17] <m0psi> can't hear it here btw
[11:17] <m0psi> here = Farnham
[11:17] <mattbrejza> lol 26dB here already
[11:18] <m0psi> what fre are you hearing it on?
[11:18] <m0psi> freq
[11:18] <mattbrejza> 191
[11:18] <m0psi> 434.191
[11:18] <m0psi> ok
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[11:20] <mfa298> mattbrejza: that's impressive, currently around 20cm above ground level
[11:20] <mattbrejza> is m0dny_rtlsdr at the launch site?
[11:20] <mattbrejza> but yea you are on top of a hill
[11:21] <mattbrejza> and my antenna is on top of a tall building
[11:21] <G8GTZ> I'm seeing it at 20 miles away
[11:22] <m0psi> i think we a few hills between us.
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[11:24] <gonzo___> that is a good direction for me, but will still take a few 100mtrs before I get sigs
[11:25] <G8GTZ> Got signals but no decode yet
[11:27] <mfa298> m0dny sdr and m1ari ar at launch site
[11:28] <m0psi> btw, m1ari now showing on map
[11:29] <m0psi> i can hear it!
[11:29] <m0psi> just about
[11:29] <m0psi> 191.11
[11:29] <mfa298> and launch
[11:30] <m0psi> got signal, just about decoding
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[11:30] <m0psi> a few errors
[11:31] <gonzo___> seeing sigs too in poole
[11:31] <mfa298> m0psi: thats not bad
[11:31] <m0psi> yay
[11:31] <m0psi> got decode
[11:33] <m0psi> very reliable decode now
[11:33] <m0psi> pretty cool
[11:33] <craag> Sorry about the delay in launching, traffic was awful.
[11:34] <m0psi> air traffic? :-)
[11:36] <craag> naughty balloon, meant to go north!
[11:36] <mfa298> so do we have the record for most listeners at <1000m
[11:37] <m0psi> i noticed that too
[11:38] <costyn> that is indeed a surprising amount of listeners
[11:38] <NickB1> yeah current prediction looks different then flight path
[11:39] <gonzo_mob> low level winds a bit less predictable?
[11:40] <GMT> signal audible in west London
[11:40] <daveake> Dunno what happened here ... no signal at all then I changed the LO frequency in HDSRR a bit, and the signal appeared loud and strong. Curious.
[11:41] <mattbrejza> interestingly, if you run the predictor for an hour to two in the future the prediction is very different
[11:41] <mattbrejza> possibly gonna draw out a U
[11:42] <m0psi> strange that signal to noise is really good, but dl-fldigi dropping first 3 characters almost all the time
[11:42] <m0psi> any ideas?
[11:43] <mattbrejza> is SQL on?
[11:43] <m0psi> n
[11:44] <GMT> i'm getting good signals, but fldigi not decoding!
[11:44] <m0psi> ah, i had it listening on the mic ! duh
[11:44] <mattbrejza> are the red lines lined up at the start of the packet m0psi or do they always move a little b4 decoding?
[11:44] <mattbrejza> ah
[11:45] <m0psi> now set to pickup the internal signal
[11:45] <m0psi> amazing sn
[11:45] <mattbrejza> GMT: 50 baud, 7 bit selected?
[11:45] <mattbrejza> Rv off (assuming youre listening on USB), SQL off, red lines lined up?
[11:46] <m0psi> looks like the balloon may be starting to head N
[11:48] <GMT> mattb: I'm on USB, red-lines line-up okay, 50bd, 7n2 shift 425
[11:48] <mattbrejza> any text appearing at all?
[11:48] <GMT> just gibberish
[11:49] <mattbrejza> print screen of fldigi and the settings window?
[11:49] <mattbrejza> i might be able to spot something
[11:50] <gonzo_mob> worth openeg the filter bandwiths on the modem optioms page
[11:50] <LazyLeopard> What's the dial frequency? or has it gone?
[11:51] <mattbrejza> 191 still
[11:51] <m0psi> 434.191
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[11:52] <LazyLeopard> Thanks
[11:52] <LazyLeopard> Managed to tune past it without hearing it...
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[11:57] <craag> It made 2000m, I'm happy.
[11:57] <craag> Battery on the camera should die around now.
[11:59] <gonzo_mob> the temp drop is suprising (to me at least) for such a low alt
[12:00] <KT5TK> craag: What kind of balloon? Floater?
[12:00] <m0psi> y, seems to be all of a sudden
[12:00] <craag> Looks to have hit a warm front now.
[12:00] <m0psi> however, there is a cold front coming
[12:00] <m0psi> so, it may have gone through a transition section
[12:00] <craag> KT5TK: Pico with camera.
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[12:00] <G8GTZ> Frequency just wobbled
[12:01] <KT5TK> Pico with camera! cool! what kind of cam?
[12:01] <G8GTZ> went down a couple of hundred hertz
[12:01] <m0psi> can we see the temp output?
[12:01] <craag> A #16 808 keychain camera.
[12:01] <m0psi> is that part of habitat?
[12:01] <costyn> m0psi: temp graph?
[12:01] <m0psi> y
[12:01] <GMT> signal drifted down in freq, now climbing again; still no decode! harumph!
[12:01] <costyn> not that I know, would be cool
[12:02] <m0psi> seems like the data is there
[12:02] <craag> m0psi: It's the last number in the string, multiplied by 10.
[12:02] <costyn> m0psi: could be included in the altitude graph
[12:02] <m0psi> right
[12:02] <m0psi> all variables
[12:02] <craag> So now 4.5 degrees
[12:02] <costyn> m0psi: ah yes you can see the temp on spacenear.us/tracker
[12:02] <craag> look on spacenear, it scales them correctly.
[12:03] <G8GTZ> Temp vs altitude would be very interesting
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[12:03] <craag> G8GTZ: I plotted that for my last flight, will do again!
[12:03] <craag> G8GTZ: https://www.thecraag.com/File:CRAAG1_10thOctober_Temperatures_Graph.png
[12:04] <m0psi> should be easy enough to have a choice of variables to plot with alt
[12:04] <costyn> craag: so how come this isn't craag2 ? :)
[12:04] <G8GTZ> Need it in real time - when condx are good ;-)
[12:04] <LazyLeopard> Heh. dl-fldigi's got location decimalitis... It thinks the payload's 3726kms away at an elevation of -17.2 degrees...
[12:04] <mattbrejza> http://habitat.habhub.org/ept/
[12:04] <mattbrejza> you can export temp and do it yourself in excel, buit not quite as handy
[12:04] <craag> costyn: I'm naming them after the tracker hardware version, rather than the flight.
[12:04] <costyn> craag: ah right
[12:05] <m0psi> nice plot craag. i want to do that for our first mission too
[12:05] <m0psi> int + ext temp, with alt
[12:05] <m0psi> i was thinking maybe humidity too
[12:05] <x-f> http://x-f.lv/x-files/pics/craag1.png
[12:05] <m0psi> got the sensor ready :-)
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[12:05] <m0psi> that's a pretty one x-f
[12:06] <costyn> x-f: that was quick :) nice
[12:06] <x-f> costyn, i made a tool for this a few weeks ago :)
[12:07] <m0psi> oh, this is live?
[12:07] <m0psi> does this pull out the data from habitat, x-f?
[12:07] <costyn> m0psi: I assume the export telemetry mattbrejza just posted
[12:08] <x-f> m0psi, yes, but that one is just a picture
[12:08] <m0psi> ah, got it
[12:08] <mattbrejza> its not (supposidly) hard to query the database and then draw a graph
[12:08] <costyn> x-f: or do you read from the logtail?
[12:08] <mattbrejza> probably about 10-20 lines of python
[12:08] <m0psi> so, we can export as a batch
[12:08] <m0psi> but not a 'live' feed
[12:08] <costyn> m0psi: well no, it doesn't automatically refresh
[12:09] <x-f> costyn, yes, from logtail, /ept wasn't ready then, and i haven't bothered to rewrite it
[12:09] <x-f> it's not really userfriedly and wasn't meant for public, but here's the live data - http://x-f.lv/dev/habitat-graphs/payload/3bbad842c06828b08556048b3d1b3514
[12:10] <costyn> x-f: sexy!
[12:10] <m0psi> pretty cool output
[12:10] <Randomskk> wow, that looks nice
[12:11] <x-f> :)
[12:11] <Randomskk> x-f: it reads from logtail?
[12:11] <costyn> methinks that should become part of the tracker :)
[12:11] <Randomskk> D:
[12:11] <x-f> Randomskk, yes
[12:11] <Randomskk> it would probably have been easier and less code to just talk to the database directly
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[12:12] <Randomskk> still it's really pretty :P
[12:12] <x-f> i suppose so, but "if it works, don't fix it" (tm)
[12:12] <m0psi> agreed with costyn, this is really valuable.
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[12:12] <craag> Yay 3000m, more than I expected to be honest.
[12:13] <cm13g09> craag: So I see
[12:13] <craag> The balloon was so full it almost burst when I put the heating on in the car :P
[12:13] <cm13g09> OOPS
[12:13] <costyn> haha
[12:14] <costyn> x-f: your graphing tool could replace the altitude graph tab that is there now.
[12:14] <cm13g09> craag: A callsign just popped up that I wasn't expecting to see
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[12:15] <x-f> costyn, i'm sure natrium42 has that planned to do :)
[12:15] <costyn> x-f: good :)
[12:15] <costyn> cm13g09: which one?
[12:15] <LazyLeopard> That sounds like a burst
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[12:15] <cm13g09> costyn: M1ARI/P
[12:16] <costyn> LazyLeopard: and it was :)
[12:16] <m0psi> sounds like it is hurtling down :-)
[12:16] <LazyLeopard> Reception's gone to pot. Presumably antenna's not pointing anywhere useful...
[12:17] <craag> cm13g09: He's here.
[12:17] <cm13g09> craag: That explains things
[12:18] <m0psi> getting good SN, but the warbling is upsetting the decode
[12:18] <gonzo___> looks like a lot of flutter. No decodes here
[12:18] <gonzo___> (can't hear it, spectrum only)
[12:18] <cm13g09> it's coming down rather rapidly....
[12:18] <m0psi> looks ike it is going into the woods
[12:19] <m0psi> need to get your climbing gear on
[12:19] <gonzo___> no chute?
[12:19] <costyn> gonzo___: not needed on a pico
[12:20] <gonzo___> light enough I supopose
[12:20] <G8GTZ> Still go decodes
[12:20] <daveake> Yeah s/n gone shite here too
[12:20] <craag> Yeah.. shouldn't be needed, but I seem to be having bad luck with how much balloon stays attached...
[12:21] <cm13g09> craag: it's heading for a field....
[12:21] <costyn> still... 6.4 m/s isn't freefall I think
[12:21] <m0psi> lucky
[12:21] <m0psi> not much of a distance to drive then :-)
[12:22] <jdtanner> A new tourist attraction for the National Park? http://www.lpi.usra.edu/science/kiefer/Education/SSRG2-Craters/meteor_crater.gif
[12:22] <jdtanner> ;)
[12:22] <m0psi> lost it
[12:22] <costyn> jdtanner: funny guy
[12:22] <cm13g09> and back into the woods....
[12:23] <costyn> jdtanner: hey, cool that you got PWM working. any additional circuitry needed?
[12:23] <mattbrejza> landed, still getting decodes :P
[12:23] <costyn> cm13g09: oooh... shame
[12:23] <cm13g09> I'm a bit behind cos I'm on the web map
[12:23] <costyn> mattbrejza: impressive :)
[12:23] <jdtanner> costyn: None whatsoever&it was dead easy when I'd figured out the correct way to adjust the PWM frequency (with assistance from Upu ;) )
[12:23] <craag> Maps not loaded here, can someone give me a road name/postcode?
[12:24] <craag> mattbrejza: :D
[12:24] <cm13g09> South Downs Way
[12:24] <craag> Cheers
[12:24] <mattbrejza> but yea could be in a tree then... or just on a hill
[12:24] <craag> That orad is long..
[12:24] <craag> we're on the southdowns way at the launch site..
[12:24] <costyn> http://goo.gl/maps/YQCEs
[12:25] <costyn> right in those trees
[12:25] <costyn> craag: bring tree retrieval gear :)
[12:25] <craag> Oh yay.
[12:25] <cm13g09> craag: try Coombe Lane
[12:25] <mattbrejza> craag: instal the chasecar app so we can direct you
[12:28] <costyn> jdtanner: mind sharing your code? I'm curious to see how it works. Not going to use it since I already have a working voltage divider
[12:29] <jdtanner> Not at all&I'll find the link to my GitHub ;)
[12:29] <costyn> jdtanner: thanks
[12:29] <jdtanner> Interestingly, there appears to be a feature in the field next to the landing site which looks a little like archaeology&but not on the OS map http://www.streetmap.co.uk/map.srf?Z=115&X=465181.9251033123&Y=121859.45695268981
[12:30] <costyn> jdtanner: what the fish?
[12:30] <costyn> jdtanner: or the arrow?
[12:30] <jdtanner> where the arrow is&if you look on the tracker on the satellite image there is a large feature in the field
[12:30] <mattbrejza> it is on the side of a hill facing me, might not be so far up a tree then
[12:31] <costyn> jdtanner: I only see a tractor with cropspray equipment
[12:31] <jdtanner> to the left of that ;)
[12:32] <costyn> that square piece of irregular crops?
[12:33] <jdtanner> Yeah&looks a bit 'regular' to me. Anyway, bugger all to do with the retrieval&just interesting :)
[12:33] <mfa298> hopefully m1ari_chase is uploading now
[12:33] <costyn> mfa298: works
[12:34] <jdtanner> costyn: here ya' go https://github.com/jdtanner/peaksky/tree/master/peaksky_gps Haven't created a 'credit' section yet, but loads of people have helped me get it up and running :)
[12:35] <mattbrejza> mfa298: go warnford, a32 to west meon,
[12:35] <costyn> jdtanner: you turning off and on your NTX between sentences?
[12:36] <jdtanner> The setPwmFrequency function is total overkill& could have just used TCCR1B = TCCR1B & 0b11111000 | 0x01; but I've left it there just for future proofing.
[12:36] <mattbrejza> mfa298: head east out of meon along 'high street'
[12:36] <jdtanner> Nope&always on
[12:36] <costyn> jdtanner: ah nevermind I see it now
[12:36] <jdtanner> once the first sentence is properly decoded
[12:36] <mattbrejza> mfa298: at some point there is a road going south called coombe ln
[12:37] <mattbrejza> or you could go round the other way...
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[12:37] <jdtanner> costyn: critical difference is rtty_pwmtxbit whichnow uses analogWrite
[12:38] <jdtanner> craag: got a ladder?
[12:38] <costyn> jdtanner: looks more complicated that I'd expected, but that's mostly due to my inexperience with C
[12:39] <jdtanner> Nah&it is probably overcoplicated :) I haven't really sat down and optimised it tbh :)
[12:39] <GMT> presumably the retrieve-team using a satnav - so why not give them the lat/long?
[12:40] <costyn> GMT: does seem easier :)
[12:40] <gonzo___> prob only useful then they are at the field
[12:40] <mattbrejza> well tehy have the gps coordinates
[12:40] <mattbrejza> i can only assime
[12:40] <costyn> heh... their chase car app doesn't seem to have a very good fix
[12:41] <gonzo___> my gps gets upset if you give it a lat/lon that is not on a road
[12:41] <costyn> gonzo___: mine (tomtom) does just fine, it'll send you to the nearest road to that point
[12:41] <GMT> Gonzo: so does mine, but it takes you to the nearest road!
[12:41] <daveake> The one I got for the 4x4 does have an "off-road" mode
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[12:42] <costyn> jdtanner: nicely commented code tho
[12:43] <NickB1> what is the purpose of the pwm code? :)
[12:43] <jdtanner> cheers lol&I revisit it so infrequently that I need to reind myself what I'm doing :D
[12:44] <jdtanner> I've adopted PWM to drive the NTX2 rather than the potential divider that most people use
[12:44] <costyn> NickB1: you can connect the TX pin of the NTX straight to a digital pin on the Arduino
[12:44] <costyn> NickB1: with no additional circuitry
[12:44] <mfa298> having gps and 3g issues here
[12:44] <costyn> mfa298: we noticed :)
[12:45] <NickB1> do you use a pwm freq above its input bandwidth ?
[12:46] <NickB1> doesnt it try to send the pwm?
[12:46] <costyn> NickB1: no, the pwm is just used to set the voltage on the TXD pin
[12:46] <jdtanner> I ramped up the PWM frequency to 31250Hz then rely on the internal low pass filter of the NTX2
[12:47] <NickB1> ah ok
[12:47] <NickB1> cool
[12:47] <prawnsalad> hey guys. anyone know if the this raw data link is raw data of *all time* or just recently? http://www.robertharrison.org/listen/view.php
[12:47] <costyn> jdtanner: I see you use softserial on 9600, I've heard this is Not Recommended(tm) ; 4800 is safe
[12:47] <costyn> *safer
[12:47] <Randomskk> prawnsalad: don't use that
[12:47] <Randomskk> it's a small selection of some recent data
[12:47] <Darkside> using softserial in general is not reccomended
[12:48] <Randomskk> that is deprecated and will be turned off soon
[12:48] <jdtanner> Yeh, I've had no problems with SoftSerial whasoever. The only issue I've had was with the buffer length&but I've ramped it up to 128 from 64
[12:48] <prawnsalad> Randomskk: is there a newer source for data then..?
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[12:48] <jdtanner> I've had my tracker running for days without any issues with softserial
[12:48] <Randomskk> prawnsalad: yes. http://habitat.habhub.org/ept is easy to use, or alternatively you can also talk to the couchdb server on habitat.habhub.org/habitat directly
[12:49] <prawnsalad> ah right, so its not actually streamed
[12:49] <eroomde> Randomskk: the addition of a $45 wp theme
[12:49] <eroomde> ael.co.uk
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[12:50] <Randomskk> haha excellent
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[12:50] <Randomskk> much improved
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[12:51] <costyn> jdtanner: it seems you're not using hardware serial anywhere in the code, why not use it to talk to the GPS?
[12:52] <jdtanner> Yeah&because I've only got an Arduino with 1 hardware serial
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[12:52] <Darkside> jdtanner: and?
[12:52] <Laurenceb> http://www.st.com/internet/mcu/product/253572.jsp
[12:52] <Laurenceb> a lotta processor
[12:53] <jdtanner> And I've had loads of problems debugging with softserial
[12:53] <Darkside> Art Accelerator
[12:53] <Darkside> mfw
[12:53] <jdtanner> the hardware serial I've reserved for debugging until I'm ready to fly
[12:53] <costyn> jdtanner: the gps will happily ignore any debugging output you send to it... so you can use it to print debugging strings and poll the gps
[12:53] <prawnsalad> Randomskk: are the dev for /habitat/?
[12:54] <Randomskk> one of them
[12:54] <jdtanner> Yeah, that has never worked for me.
[12:54] <Randomskk> well I assume you mean "are you the dev for"
[12:54] <jdtanner> Easy to use softserial until I'm ready to fly, then swap over to hardserial.
[12:54] <prawnsalad> sorry yea, thats the one :)
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[12:54] <costyn> jdtanner: hmmm well programming the arduino will not work if the gps is connectfed, but you should be able to read serial.println's on your hardware serial
[12:54] <prawnsalad> are there any plans to add a live stream of raw data per payload?
[12:55] <Randomskk> I think you can basically already do that
[12:55] <Randomskk> or hm, pretty close
[12:55] <costyn> jdtanner: fair enough :)
[12:55] <jdtanner> Yeah, that was the issue&I remember now. I couldn;t be bothered to keep removing the gps to program the arduino ;)
[12:55] <costyn> hehe
[12:55] <Randomskk> basically you can always use the URL that /ept/ generates and just refresh it
[12:55] <Randomskk> you can also supply a offset parameter to ignore old data
[12:55] <Randomskk> but also you can connect to couchdb's _changes stream with a filter so you only see parsed telemetry
[12:55] <jdtanner> plus softserial plays nicely for me
[12:55] <Randomskk> at the moment I don't think you'd see only one payload though...
[12:55] <Randomskk> you can also just request the payload docs from the db
[12:56] <prawnsalad> hmm, thats not really a stream :p
[12:56] <costyn> jdtanner: daveake has a nice solution, pass the gps tx through a 2 pin header wher you put a jumper on when you want the gps talking to your arduino
[12:56] <prawnsalad> actually, may I PM?
[12:56] <Randomskk> the _changes thing is an actual stream
[12:56] <Randomskk> you may
[12:56] <costyn> jdtanner: I just remove the jumper when I program the arduino
[12:56] <jdtanner> costyn: sounds like a neat solution :)
[12:57] <costyn> jdtanner: http://i.imgur.com/06SpN.jpg image quality is crap, but when I remove the blue jumper the gps tx is disabled
[12:57] <jdtanner> Neat!
[12:57] <costyn> jdtanner: the other 2 pins next to it are to connect the battery pack, so I can power it externally and still have batteries in the payload
[12:58] <costyn> (another great tip from daveake) :)
[12:58] <daveake> :)
[12:58] <mfa298> hopefully were getting close
[12:59] <mattbrejza> mfa298: you just drove past it
[12:59] <mattbrejza> unless you wanted to go 'round the back' thru the wood
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[13:00] <mfa298> had the joy of navigating by os map
[13:00] <gonzo_mob> the mans way!
[13:01] <mattbrejza> also the round hte back route is actually a footpath
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[13:02] <jdtanner> I never got on with jumpers&I've got meaty fingers :)
[13:03] <costyn> looks like more work than traipsing through the field, although the barbed wire fence didn't look too friendly in street view
[13:04] <mfa298> we're going to try trapsing throguh th woods
[13:05] <costyn> mfa298: probably best, there's going to be more barbed wire between the field and the forest
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[13:05] <mattbrejza> take the chasecar phone :P
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[13:10] <costyn> jdtanner: alternatively: http://i.ebayimg.com/t/10x-2-Way-DIP-Switch-2-Position-4-pin-PCB-Mountable-/00/$(KGrHqR,!ioE5eYLPZF6BOeverKGng~~_35.JPG
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[13:10] <costyn> if you don't like jumpers :)
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[13:11] <jdtanner> nice!
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[13:11] <jdtanner> Got the link to the actual auction?
[13:11] <costyn> yea, gonna order some myself to use in future
[13:12] <costyn> jdtanner: http://www.ebay.com/itm/10x-2-Way-DIP-Switch-2-Position-4-pin-PCB-Mountable-/130579770743
[13:12] <costyn> jdtanner: but I'm sure any electronics webshop carries these
[13:12] <jdtanner> cool..thanks :)
[13:12] <costyn> jdtanner: shipping from hong kong usually takes weeks
[13:13] <costyn> even tho it's free
[13:13] <jdtanner> Yeah, if ever!
[13:13] <costyn> everything I ordered so far from there has been delivered (knock on wood)
[13:14] <jdtanner> lol&well I'm sure my stuff gets lost when it enters the UK tbh
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[13:27] <costyn> man that chasecar app is next to useless
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[13:33] <costyn> ah looks like they're close now
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[13:45] <mfa298_> spotted in the top of the tree
[13:46] <daveake> ah
[13:47] <mfa298_> im wondering if tge phobe was turning off the gps when i went onto internet
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[14:10] <costyn> mfa298_: any luck?
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[14:39] <craag> No lcuk. It's ~17m up a tree
[14:41] <craag> I'll come back and check on it ithis weekend maybe, hopefully it'll have fallen out..
[14:41] Action: craag -> home
[14:41] <costyn> craag: sucks! :(
[14:42] <kokey> need a quadcopter with a hook
[14:42] <kokey> and flying skillz
[14:42] <costyn> kokey: and a steady hand
[14:43] <HeliosFA> craag - sounds like you need another baloon to get the first ;)
[14:43] <HeliosFA> or a really long stick...
[14:44] <costyn> 17m is going to be a challenge
[14:44] <costyn> craag: maybe you can rig up a spudgun and shoot it out
[14:45] <costyn> spudgun with rope to function as a grappling hook
[14:45] <HeliosFA> or we can throw paintball guns at you...
[14:53] <mattbrejza> well at least if it falls down before the battery runs out ull know
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[14:59] <kokey> where I'm from, the solution would involve a saw, some cable, and a truck
[14:59] <cm13g09> HeliosFA: how about NO....
[15:00] <HeliosFA> hey, chris, - paintballing phil's payload out of a tree is good target practice ;)
[15:00] <kokey> and a few weeks later a bonfire
[15:00] <kokey> well, usually the same day, since the tree won't be so wet
[15:00] <costyn> kokey: I'm not sure the forestry dept would approve of your plan
[15:00] <costyn> (in this case)
[15:00] <cm13g09> costyn: you have a point
[15:00] <kokey> perhaps swap the labels on the tree
[15:00] <cm13g09> HeliosFA on the other hand...
[15:01] <costyn> cm13g09: :)
[15:01] <costyn> I still like my spudgun with a line idea
[15:02] <kokey> dress it up as a non native tree
[15:02] <HeliosFA> or, replace it with one of those "disguised" mobile phone masts ;)
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[15:23] <mfa298_> HeliosFA: we had craags fibre glass pole but it wasn't long enough.
[15:23] <mfa298_> and the trees wern't that climbable.
[15:24] <HeliosFA> :( 10m << 17m
[15:24] <HeliosFA> and obviously the correct solution is a trained pet monkey...
[15:25] <costyn> HeliosFA: that sounds good. perhaps UK habbers could share and pay for one amongst the community
[15:25] <mfa298_> HeliosFA: are you suggesting yourself or cm13g09 ?
[15:25] <HeliosFA> i'm no monkey and I certainly can't climb trees - flattening on the other hand, i can do!
[15:25] <HeliosFA> now, cm13g09 sounds like a good suggestion :P
[15:27] Nick change: mfa298_ -> mfa298
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[15:30] <cm13g09> OI!
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[15:35] <cm13g09> HeliosFA: I'm convinced I keep hearing things
[15:35] <HeliosFA> ???
[15:35] <cm13g09> still not feeling 100% so sticking clear of lectures
[15:35] <cm13g09> so I don't pick up anything else
[15:35] <cm13g09> convinced I keep hearing a knock on the door :P
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[15:36] <HeliosFA> oh, you are hoping to NOT pick up something at the door between 15:06 and 16:06 then?
[15:36] <cm13g09> lol
[15:36] <cm13g09> yes and no
[15:37] <cm13g09> I'd like my parcel
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[16:00] <craag> mattbrejza: Probably just less than 3 hours until the battery dies.
[16:00] <mattbrejza> hmm
[16:01] <mattbrejza> well we shall see :P
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[16:01] <UpuWork> are you parked up recieving it ?
[16:01] <UpuWork> oh ASTRA is RXing
[16:01] <mattbrejza> nope
[16:01] <craag> I'm back home now.
[16:02] <UpuWork> Flight State: F (F= f*cked stuck in a tree?)
[16:02] <mfa298> Astra seem to have done a good job of tracking it having picked it up on the ground at the launch site and on landing!
[16:02] <UpuWork> got some images of it in the tree ?
[16:02] <cuddykid> ah no :(
[16:03] <cuddykid> need the HAB rescue quad copter
[16:03] <craag> UpuWork: Plugging in camera now..
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[16:12] <craag> UpuWork: Raw photos, so you'll have to zoom in a bit: http://imgur.com/a/9kdPd#0
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[16:13] <craag> Yet again no part of the balloon seemed to remain attached.
[16:13] <HeliosFA> hmm, beat the tree a few times?
[16:14] <HeliosFA> looks a bit precarious up there
[16:15] <craag> HeliosFA: Tried that, the tree was rather a strong one.
[16:15] <HeliosFA> hmmm
[16:16] <HeliosFA> drive a car into it?
[16:16] <craag> I wish.. couldn't get a car anywhere near it.
[16:16] <HeliosFA> oh?
[16:16] <UpuWork> I carry a blackwidow catapult and a wire saw now craag
[16:17] <UpuWork> but yeah that looks problematic
[16:17] <craag> UpuWork: That would be the best idea I reckon, but it's a long way up!
[16:17] <KT5TK> NP: http://tkrahn.dyndns.org/gallery2/main.php?g2_itemId=7399&g2_page=9
[16:18] <UpuWork> thats a proper tree
[16:18] <HeliosFA> craag - was the payload another one of your jiffy bag ones?
[16:18] <craag> *That* is what I need..
[16:18] <mattbrejza> if its ash just come back in a year or so when the trees lying on the floor
[16:18] <craag> HeliosFA: Yep, plus a camera in a separate 'box'.
[16:19] <mfa298> this is my set of raw photos: https://www.dropbox.com/sh/ldogyj23qaf4i3b/8DE2Hp9gIq#/
[16:20] <HeliosFA> caption: "This is MY baloon you hear? MY baloon!" https://www.dropbox.com/sh/ldogyj23qaf4i3b/8DE2Hp9gIq#f:2012-11-26%2011.23.43.jpg
[16:20] <craag> lol
[16:20] <craag> I've never been too good with posing for photos!
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[16:22] <HeliosFA> lol
[16:24] <craag> I'm pretty sure it is an ash tree, do they 'molt' their branches then?
[16:25] <mattbrejza> na theres that fungus going round htat kills them off
[16:25] <HeliosFA> the one that has been in the news a lot phil
[16:25] <craag> oh ok. Not part of the news I've kept up with obviously..
[16:26] <HeliosFA> but yes, they "molt" their branches when someone with a chainsaw or explosives goes near
[16:26] <mfa298> I'm not sure it's made it as far as Hampshire yet though.
[16:26] <HeliosFA> obviously not technical enough ;)
[16:27] <cm13g09> HeliosFA: you have parcel
[16:27] <HeliosFA> cm13g09, big or little?
[16:27] <cm13g09> big and heavy
[16:27] <HeliosFA> from London?
[16:28] <cm13g09> I suspect so from packaging ;)
[16:28] Action: HeliosFA is excited...
[16:29] <SamSilver> slightly off topic - kind of space related http://www.youtube.com/watch?v=nRsaExGcx5A&feature=related
[16:29] <eroomde> general advice time - i'm building a file server that also wants to be a media pc. so i'm looking for a decent cheap intel motherboard/cpu combo with integrated graphics, and ideally a decent number of sata ports. any recommendations?
[16:29] <cm13g09> HeliosFA: Mr ParcelForce came back
[16:29] <eroomde> needs enough oomph got 1080p youtube flash vids, and that's about it
[16:29] <cm13g09> he said we can ignore teh note he left
[16:29] <eroomde> oomph for*
[16:30] <HeliosFA> eroomde, if it wasn't for the SATA port requirement, I might suggest http://www.ebuyer.com/318725-desktop-board-d2700-2-13ghz-1m-box-boxd2700mud
[16:31] <HeliosFA> ah, so you missed it first time cm13g09
[16:31] Action: HeliosFA resists urge to go home
[16:31] <eroomde> sadly sata is quite high on the list
[16:31] <eroomde> but thanks
[16:31] <cm13g09> HeliosFA: I didn't
[16:32] <HeliosFA> the one interesting thing you can do with that board, is mini-PCI-e to PCI-e 1x and then run a plug in 1x SATA card
[16:32] <HeliosFA> (or a 4x if you take the end of the slot off)
[16:33] <HeliosFA> cm13g09, then why did he leave a card?
[16:34] <kokey> eroomde: I ended up buying an old HP mini tower desktop, and putting a fanless radeon graphics card in it and a sata drive
[16:34] <cm13g09> HeliosFA: between us we may have missed it earlier
[16:35] <cm13g09> but it wasn't after I got back
[16:35] <HeliosFA> :O there was no card earlier
[16:35] <mattbrejza> now that youve mentioned it in the channel you have to tell us what was in the parcel
[16:36] <HeliosFA> probably/hopefully a Soundcraft Spirit 324 LIVE mixing desk
[16:37] <mattbrejza> ah nice
[16:37] <mattbrejza> looks like one big toy
[16:37] <mattbrejza> lots of buttons to press etc
[16:37] <HeliosFA> yes, and lots of flashy lights!
[16:38] <craag> Some other pics of payload assembly, filling and launch: http://imgur.com/a/ZhiNU/all
[16:39] <cm13g09> HeliosFA: you're getting parcels that contain big (in both dimensions) toys
[16:39] <cm13g09> I get small parcels with big boy's "toys" in them
[16:39] <HeliosFA> more parcels?
[16:39] <HeliosFA> ah, lol
[16:40] <HeliosFA> missed the 2nd message there ;)
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[16:50] <craag> x-f: Is it alright if I email around the temperature graph of yours?
[16:53] <griffonbot> Received email: Philip Crump "Re: [UKHAS] Launch Announcement CRAAG1 Pico 11:00 UTC 26/11/12"
[16:53] <kokey> I keep reading HeliosFA as HelloFSA
[16:54] Action: HeliosFA is missing the significance of this?
[16:59] <kokey> consider that a good thing
[16:59] <kokey> I've been tainted by working for a bank
[16:59] <HeliosFA> ah,
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[17:00] <cm13g09> HeliosFA: the bits I had arrive today were well worth it :)
[17:00] <HeliosFA> i wan't sure if it was that FSA or the Free Syrian Army :P
[17:06] <natrium42> flight safety authority
[17:07] <HeliosFA> hmm, or Filipino Student Association
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[17:40] <x-f> craag, sure (sorry for lag)
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[17:44] <griffonbot> Received email: Ali al-Azzawi "Re: [UKHAS] Launch Announcement CRAAG1 Pico 11:00 UTC 26/11/12"
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[17:58] <x-f> Upu, do you use your slingshot together with the wire saw, or those both are for different scenarios?
[18:00] <gonzo___> I still recon the 12bore is a good hab tool
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[18:12] <Upu> x-f never used it but the idea is a fishing weight with a cord on it over the branch, then haul up the saw, cut the branch, recover payload
[18:17] <daveake> If you want practice with that Upu, I have the bits, the payload and the tree waiting :)
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[18:19] <x-f> cheers, Upu
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[18:20] <x-f> one has to have a steady arm for aiming, but that could indeed work
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[18:22] <griffonbot> Received email: Philip Crump "Re: [UKHAS] Launch Announcement CRAAG1 Pico 11:00 UTC 26/11/12"
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[19:11] <costyn> what's a good 3.3v output boost converter to use?
[19:12] <Upu> seems to be a few at the moment
[19:12] <Upu> NCP1402, or a TPS61201DRC
[19:12] <costyn> preferably not a SOT10 package or something equally tiny
[19:12] <costyn> :)
[19:12] <Upu> TPS61201DRC
[19:12] <Upu> oh wait
[19:12] <Upu> that was meant to be strike through :)
[19:13] <eroomde> a lot of the stuff design to run off tiny batts is squarely tiny-consumer-electronics territory sadly
[19:13] <costyn> Upu: so... TPS61201DRC then?
[19:13] <costyn> eroomde: I see
[19:13] <eroomde> btw if you need to go the other direction (buck) and optimise for power consumption, the max1556 is quite amazing
[19:13] <eroomde> efficiencies at lower power are sort of 10% better than you get from almost everything else
[19:13] <costyn> eroomde: noted, thanks
[19:14] <eroomde> nearer 95% at 10mA than 85%
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[19:14] <Upu> Ah Mr Coxon
[19:15] <costyn> Upu: I see a market for HABsuplies: selling assembled breakouts for power supplies ;)
[19:15] <eroomde> you have become.... surplus to requirements
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[19:18] <eroomde> i suspect he's good at intercepting other ham's communications
[19:18] <craag> mfa298: Looks like I didn't need to be worried about that battery..
[19:19] <costyn> craag: is it still going?
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[19:19] <craag> costyn: Yep! 1.18v though, so not long left.
[19:20] <mfa298> it's done pretty well
[19:20] <costyn> ah nice :(
[19:20] <craag> The battery voltage when I started up the payload was less than I'd seen in testing, so I was worried I'd picked one I'd previously used in testing.
[19:20] <costyn> :) I mean
[19:21] <costyn> measuring it with an analog port?
[19:21] <craag> Yep, and a /3 divider.
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[19:23] <costyn> cool
[19:24] <mfa298> although the gps seems to be jumping around a lot so it's hard to tell if it's still in a tree or not.
[19:24] <mfa298> showed 105m at 17:42
[19:24] <craag> mfa298: Yeah, once it's done I'll do some running averages just to check, but I doubt it.
[19:25] <mfa298> just saw an 18:00 value at 215m
[19:25] <costyn> is it likely to fall down? looks pretty stuck in the pics
[19:25] <craag> costyn: I don't think so unless the wind really blows.
[19:26] <Upu> costyn Sparkfun sell them
[19:26] <costyn> Upu: yea found the NCP1402
[19:26] <costyn> ah
[19:26] <costyn> nice
[19:26] <Upu> thats the TPS61200 can do 3.3V or 5V
[19:26] <Upu> though if it doesn't work at 3.3V i have a fix
[19:27] <mfa298> interesting pattern when you zoom in on the landing spot. Almost like a spirograph pattern
[19:28] <costyn> mfa298: yea noticed that earlier.. its jumping around between certain points
[19:28] <eroomde> mfa298: what are we looking at?
[19:28] <jcoxon> hey craag, apart from tree are you happy with the flight?
[19:29] <mfa298> eroomde: just the pattern the path trace gives when your zoomed in a long way.
[19:29] <eroomde> on craag?
[19:30] <mfa298> yep
[19:30] <mfa298> reminded me of a spirograph picture (http://en.wikipedia.org/wiki/Spirograph)
[19:30] <eroomde> oh yeah
[19:30] <eroomde> random walk meets quantisation
[19:31] <craag> jcoxon: Very. Tracking worked great. Burst was reasonably high considering the fill.
[19:31] <craag> It seemed all the balloon detached again, so I'll make sure to put a streamer on the next one to help tracking on descent.
[19:34] <craag> CRAAG1 is now dead. 2045 strings over 8.25 hours.
[19:35] <jcoxon> not bad
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[19:38] <costyn> craag: shucks. :) been a good run. what's plan b if it doesn't blow down? I assume you'd like at least the camera back
[19:39] <craag> costyn: No plan b.
[19:39] <craag> Not much I can do tbh!
[19:41] <costyn> :(
[19:41] <number10> upu what was the battery life in yor 1v8 tracker?
[19:41] <jonsowman> payload in a tree?
[19:42] <Upu> just over 27 hours with no power saving on the GPS , 14dB 1 sec delay between TX
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[19:42] <number10> thats pretty good - Upu - from memory the rfm22 min vin is about 1.8?
[19:42] <Upu> it is
[19:43] <number10> worked well
[19:43] <costyn> jonsowman: yup
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[19:44] <jonsowman> get a tree surgeon to get it down :)
[19:44] <jonsowman> if it's worth anything
[19:45] <jonsowman> paid one about £50 last time
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[19:45] <jcoxon> at this rate of weather it'll blow down
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[19:45] <number10> I did ask daveake how long his pico lasted - but I think I had too many spelling mistakes in the question ;)
[19:45] <SpeedEvil> blow down, or float up.
[19:46] <craag> jonsowman: Unfortunately access is about a 30 minute hike up the hill through squelchy brambles, not sure a tree surgeon would be happy with that.
[19:46] <mfa298> hopefully the wind will blow it towards the field rather than another tree
[19:46] <jonsowman> craag: you'd be surprised
[19:46] <jcoxon> we need to get a friendly tree surgeon involved with #ha
[19:46] <jonsowman> access to ours wasn't great
[19:47] <jonsowman> and it was a bloody big tree
[19:47] <craag> jonsowman: Then there's the whole national-park thing which I would guess might cause a bit of paperwork?
[19:47] <jonsowman> not as big as jcoxon's, but we didn't have the choice of just cutting it down ;)
[19:48] <jdtanner> Phone up the National Park Authority and see if they can spare you a tree surgeon ;)
[19:48] <jonsowman> yeah that's a goo idea
[19:48] <jonsowman> *good
[19:48] <jonsowman> even
[19:49] <craag> Ok thanks. I'll leave it a couple of weeks to blow down and then try that route.
[19:49] <jcoxon> jonsowman, we didn't initially have the choice to cut it down
[19:49] <jdtanner> Honestly, if somebody had phoned me when I worked for the Peaks we robably would have helped
[19:49] <jonsowman> craag: expensive payload?
[19:49] <jonsowman> jcoxon: yeah, fair enough :)
[19:49] <costyn> jdtanner: these are even sexier: http://sigma.octopart.com/8915319/image/Grayhill-76SB04S.jpg
[19:49] <jcoxon> they offered to fly a helicopter over it
[19:50] <craag> jonsowman: It was off-the-shelf parts so was a bit expensive, plus I'd like to see what's on the camera card!
[19:50] <jdtanner> the National Park?
[19:50] <jonsowman> yeah, worth getting back then
[19:50] <jdtanner> costyn: nice
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[20:05] <DrLuke> Sparkfun is shipping for free today
[20:05] <DrLuke> internationally, too
[20:05] <DrLuke> http://www.sparkfun.com/news/1012
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[20:09] <daveake> ooer
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[20:24] <SpeedEvil> free shipping on sparkfun
[20:30] Action: SpeedEvil fails to find anything to buy
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[20:48] <cuddykid> damn - just missed amazon selling Samsung 32GB microSD for £12.97! sold out now :(
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[21:02] <New2Balloon> cuddykid, maybe not quite as cheap but postage is free and the card is vary reliable (i have1) http://www.7dayshop.com/transcend-micro-sdhc-memory-card-32gb-class-4
[21:03] <cuddykid> thats good New2Balloon - though it's not class 10 unfortunately :(
[21:03] <New2Balloon> blimey that was good at £12.97 then, no wonder they sold out
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[22:02] <STRATODEAN> Hello
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[22:02] <natrium42> BYE
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[22:16] <griffonbot> Received email: Kevin Walton "[UKHAS] Leicestershire launch planned - anyone local want to come along?"
[22:17] <New2Balloon> I'd love to but it's a loooong way from the Isle of Wight :(
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[22:22] <DrLuke> ah crap, it's december soon
[22:22] <DrLuke> time to buy gifts
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[22:26] <mfa298> DrLuke: it's fine, there's 4 weeks until it's time for the normal panic shopping trip :p
[22:26] <DrLuke> lol yeah
[22:27] <DrLuke> I think I finally need an oscilloscope, anybody got a suggestion for something around 250¬?
[22:30] <BrainDamage> if you can increase by 50¬, you can get a cheap chinese DSO, rigol is a popular choice
[22:30] <BrainDamage> alternatively, used analogue scope
[22:33] <mattbrejza> http://uk.farnell.com/tenma/72-6802/oscilloscope-30mhz-fq-count/dp/1563801
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[22:35] <mattbrejza> (same ting cheaper) http://cpc.farnell.com/tenma/72-6802/oscilloscope-30mhz-fq-count/dp/IN05500
[22:35] <New2Balloon> http://cpc.farnell.com/tenma/72-6802/oscilloscope-30mhz-fq-count/dp/IN05500
[22:35] <New2Balloon> ahhh. trumped me! :D
[22:35] <mattbrejza> lol
[22:35] <daveake> DrLuke - What for?
[22:35] <DrLuke> daveake: just the usual stuff
[22:36] <DrLuke> some sort of rigol would do, I just don't know which one exactly
[22:36] <daveake> I have an Owon DSO and it's very good, but tbh I use a logic analyser more for doing micro stuff
[22:36] <BrainDamage> ds1052 is the super popular choice
[22:36] <eroomde> so, next to our house are lots of men in high vis jackets
[22:36] <BrainDamage> 50 MHz and can be hacked to 100
[22:37] <eroomde> standing by the extra foot of artificial riverbank they've erected along our stretch of the thames
[22:37] <eroomde> which is gradually swelling
[22:37] <BrainDamage> with the most recent firmwares you'll have to do some hex editing
[22:37] <daveake> So if your answer was "debugging spi" then an analyser is better. But for general looking at signals and digital stuff too, get a DSO
[22:37] <DrLuke> BrainDamage: thanks!
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[22:37] <mattbrejza> although it depends whether you want to sped £250 on something oto be shipped from china
[22:37] <mattbrejza> at least the farnell stuff has someoone in the uk to moan at
[22:38] <DrLuke> there surely is some german shop selling them
[22:38] <mattbrejza> at my time of looking there asnt a uk place
[22:43] <New2Balloon> cpc will ship to europe
[22:47] <DrLuke> http://www.batronix.com/versand/oszilloskope/Rigol-DS1052E.html
[22:49] <zyp> I'll second daveake's mention of a logic analyzer
[22:49] <zyp> I've got both, and I'm using the logic analyzer far more often than the scope
[22:50] <daveake> yep zyp
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[22:51] <Lunar_Lander> evening
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[22:51] <daveake> Hey Lunar. I've built a tracker with a Mega :)
[22:52] <Lunar_Lander> cool! how do you like the Mega as a platform?
[22:52] <daveake> Plenty of space :p
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[22:52] <daveake> I needed the serial ports
[22:52] <Lunar_Lander> yea
[22:52] <Lunar_Lander> what did you connect?
[22:53] <daveake> GPS and Iridium and debug port
[22:53] <daveake> It's testing on spacenear now
[22:54] <Lunar_Lander> cool
[22:55] <Lunar_Lander> Roll is an interesting name
[22:55] <Lunar_Lander> :)
[22:55] <daveake> It will be obvious why when the Iridium tracker appears
[22:55] <Lunar_Lander> ah
[22:56] <Lunar_Lander> the other guy with Lumia should think about it I would say
[22:56] <Lunar_Lander> not that he will get in trouble from Nokia
[23:01] <Lunar_Lander> xD let me guess
[23:01] <Lunar_Lander> the Iridium is named "Rock"
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[23:02] <daveake> yup
[23:02] <Lunar_Lander> xD
[23:03] <Lunar_Lander> https://www.youtube.com/watch?v=CQRYVsqVT3M
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[23:20] <gonzo___> eve peeps
[23:21] <gonzo___> did cragg1 finally run flat?
[23:21] <craag> It did.
[23:21] <craag> We know very well where it is now!
[23:21] <gonzo___> any chance of it getting dislodged?
[23:22] <gonzo___> saw the chatter on the efforts to recover
[23:22] <craag> Hoping the wind might do it, I'll check this weekend. Failing that it's a tree surgeon's job.
[23:23] <gonzo___> shame
[23:23] <craag> Thanks for tracking btw, you got a good number of strings!
[23:23] <gonzo___> np. It was good sigs till burst
[23:24] <gonzo___> then it looks like it was too fluttery to decode. Could only see the waterfall, not hear the rx
[23:24] <gonzo___> our lot were thinking of doing a similar launch
[23:25] <gonzo___> (though not a tree landing!)
[23:26] <gonzo___> a rerun of bonzo1, this time remembering to put the fob cam on it before release, rather than 30sec after as happened last time
[23:26] <gonzo___> and not overfill and overfly naughty places
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[23:29] <daveake> woohoo
[23:29] <daveake> Iridium tracker on the map :)
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[23:35] <craag> gonzo___: Yeah, as the balloon detached after burst it would have been coming down camera first.. hence the rather fluttery signals as the jiffy-bag-tracker was dragged down upside-down! Definitely a streamer next time to stabilise things.
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[23:57] <Lunar_Lander> well done daveake !
[00:00] --- Tue Nov 27 2012