highaltitude.log.20120624

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[05:21] <jcoxon> morning all
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[05:40] <Darkside> \o
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[05:42] <jcoxon> Darkside, bit of a storm going on herer :-p
[05:44] <Darkside> nice
[05:44] <jcoxon> that rain should stop before launch
[05:44] <jcoxon> not so sure about the wind though...
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[06:40] <eroomde> morning
[06:48] <number10> morning
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[07:10] <bambi> good day (evening) everyone
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[07:14] <Upu> morning
[07:14] <jcoxon> hey Upu
[07:14] <Upu> still on ?
[07:14] <jcoxon> well rain has stopped
[07:14] <jcoxon> winds are still high
[07:15] <jcoxon> but in a relatively safe direction
[07:15] <Upu> ok
[07:15] <jcoxon> as in we can literally bring out of barn and release
[07:15] <Darkside> cool
[07:15] <Darkside> jcoxon: this going to be a floater?
[07:16] <jcoxon> Darkside, thats the plan
[07:16] <jcoxon> it'll have a vent
[07:16] <jcoxon> to try and float it at a lower altitude
[07:16] <Darkside> ooh ok
[07:18] <jcoxon> aiming 26/27km
[07:19] <Upu> whats launch coords, I'll go get the live predictions set up
[07:20] <jcoxon> its probably not worth doing live predictions
[07:20] <jcoxon> as it'll get upset on floating
[07:20] <jcoxon> i guess it'll help ascent
[07:20] <eroomde> the ascent of the floater
[07:20] <jcoxon> 52.1215 0.8078
[07:20] <eroomde> a short history on constipation in the 20th century
[07:21] <jcoxon> was thinking that if we are able to launch then we could go on to ##rtlsdr to recruit some more listeners
[07:22] <number10> about to pop over soon jcoxon
[07:22] <jcoxon> number10, cool
[07:22] <jcoxon> know where to go?
[07:22] <number10> just past money hole on the left?
[07:22] <jcoxon> yeah
[07:22] <number10> cool
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[07:23] <Upu> ok I'll sort tracker out shortly, off to walk dog first
[07:23] <jcoxon> i'm sorting the tracker
[07:23] <Upu> ok nps
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[08:02] <daveake> Hmmm... anyone else not able to load spacenear.us?
[08:03] <Upu> yeah
[08:03] <Upu> its not working
[08:03] <Upu> just trying to ascertain the issue
[08:03] <daveake> Ah ok
[08:04] <Upu> it is responding but its very very slow for some reason
[08:06] <Upu> though you don't want to be launching with it like it is
[08:07] <eroomde> sure you do it'll be like old times
[08:08] <mclane> actually, I cannot access from here (server not found)
[08:09] <Upu> its not happy, its not responding on SSH either
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[08:11] <eroomde> kraken?
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[08:12] <jcoxon> slow internetx
[08:12] <mclane> it does not respond to pings
[08:12] <mclane> I cannot resolve the ip adress either
[08:15] <jcoxon> eek
[08:15] <mclane> "host spacenear.us" gives as response "Host spacenear.us not found: 3(NXDOMAIN)"
[08:15] <jcoxon> http://habitat.habhub.org/testing-web/demo.html
[08:15] <jcoxon> as a back up
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[08:18] <Upu> mclane its likely that the server is its own DNS server
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[08:33] <Upu> spacenear.us is back
[08:33] <Upu> EURUS on the map
[08:33] <Upu> off to put my £5 antenna up :)
[08:33] Nick change: Upu -> M0UPU
[08:37] <daveake> Making your own antenna? Now you're a real radio ham :)
[08:39] <mclane> what kind of antenna?
[08:39] <M0UPU> http://imgur.com/a/1bqjM#0
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[08:41] <M0UPU> Colinear
[08:41] <M0UPU> its part of my experiment to see if you can make a HAB tracking setup for less than £25 all in
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[08:42] <mclane> using rtlsdr?
[08:42] <M0UPU> and on the plus side it can see all the QRM around 434.075 so thats a good sign
[08:42] <M0UPU> yes
[08:42] <M0UPU> SDR# + EZCAP
[08:42] <M0UPU> http://imgur.com/a/1bqjM#9
[08:42] <M0UPU> home brew has pink tape on it
[08:43] <M0UPU> you can see the Watson on the roof at the back
[08:43] <Darkside> oh you're M0UOU now?
[08:43] <jcoxon> filling
[08:43] <Darkside> UPU*
[08:43] <M0UPU> Watson has height advantage
[08:43] <M0UPU> I am :)
[08:44] <mclane> sdr# in windows I assume?
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[08:45] <M0UPU> yes
[08:45] <M0UPU> other operating systems are availble
[08:45] <mclane> I tried that with ubuntu / mono, but too high cpu load
[08:46] <M0UPU> what CPU ?
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[08:47] <mclane> I have a notebook with core 2 duo u9600
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[08:47] <M0UPU> and that struggled ?
[08:47] <M0UPU> ouch
[08:48] <mclane> yes
[08:48] <M0UPU> I tried it on the radio club PC with a 3Ghz P4 and that couldn't handle it
[08:48] <M0UPU> right I'll go make a brew whilst they are filling
[08:49] <mclane> I also tried gqrx and that works with about 60-75% cpu load on both cores
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[08:51] <jcoxon> mclane, i've got gqrx on a 1.4
[08:51] <jcoxon> by turning off the audio box in the bottom right
[08:52] <jcoxon> and having fft to 1hz
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[09:30] <SamSilver> it looks like XABEN is dancing the opening sequence of a tango around Eurus
[09:30] <jcoxon> vent installed
[09:30] <daveake> XABRE dance
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[09:31] <SamSilver> lol
[09:34] <daveake> It's going for walk now
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[09:37] <SamSilver> any pics of the vent?
[09:38] <daveake> I think number10 has been tasked with taking photos, so hopefully he has some
[09:39] <M0UPU> yup
[09:39] <M0UPU> I hope so too
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[09:41] <daveake> Not sure if XABEN is having GPS issues ... it's sending updates but the time has stopped at 9:33:22 and the co-ords are all zeroes
[09:41] <jcoxon> its indoors
[09:41] <daveake> Ah, OK, ta
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[09:45] <navrac> only just saw the launch notification 5 mins ago - glad I'm not too latwe
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[09:57] <cuddykid> morning
[09:58] <cuddykid> should be a good flight :)
[09:58] <jcoxon> launch failed
[09:58] <jcoxon> balloon hole
[09:58] <jcoxon> filling a new balloon
[09:58] <jcoxon> payloads still working
[09:58] <gonzo__> bad luck
[09:58] <WillDuckworth> oh no
[09:59] <daveake> eek
[09:59] <gonzo__> have spare He then?
[10:01] <cuddykid> WillDuckworth: are you still on for next weekend?
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[10:03] <WillDuckworth> hi cuddykid - possibly - need to do some testing still
[10:03] <WillDuckworth> you?
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[10:06] <daveake> ping *upu*
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[10:07] <nosebleedkt> fffffffff, I want to go to the beach !
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[10:07] <daveake> Raspberry pi info: current consumption once booted = 0.39A. Time from power-on till rtty = 23 seconds
[10:08] <M0UPU> hello
[10:08] <daveake> ^^
[10:08] <WillDuckworth> nice daveake - are you using the gpio?
[10:08] <M0UPU> 390mA
[10:08] <daveake> Just serial
[10:08] <cuddykid> WillDuckworth: cool, possibly - I'll let you know later in the week :)
[10:08] <M0UPU> its doable
[10:08] <daveake> Thanks for doing the conversion for me :)
[10:08] <M0UPU> lol
[10:09] <WillDuckworth> any linky daveake?
[10:09] <daveake> linky to whaty?
[10:09] <WillDuckworth> or pics?
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[10:09] <daveake> justamp
[10:10] <daveake> o
[10:11] <daveake> Initial rtty test - http://imgur.com/34pBb
[10:11] <WillDuckworth> good stuff
[10:11] <WillDuckworth> cheers
[10:11] <daveake> Real data - http://imgur.com/TTJpc
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[10:12] <Lunar_Lander> hello
[10:12] <daveake> The signal there looks weak but there was no antenna on Tx or Rx
[10:12] <WillDuckworth> are you using craag's code?
[10:12] <WillDuckworth> or own
[10:12] <daveake> Also since then the time between Tx's is much shorter
[10:12] <daveake> Own
[10:13] <WillDuckworth> good stuff
[10:13] <daveake> I believe he's waggling GPIO lines to get rtty; i'm simply using the UART
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[10:13] <daveake> I use the same port for Tx ro NTX2 and Rx from a Lassen.
[10:13] <WillDuckworth> i see - changing baud?
[10:14] <daveake> So I have to switch baud rates, hence the downtime between transmissions
[10:14] <daveake> yup
[10:14] <daveake> I found that eventually the "change baud rate" bit locked up - after an hour or so. Fixed that by closing and opening the port each loop
[10:15] <F1src> Hello all, have a nice trip
[10:15] <daveake> Which has the advantage of flushing the rtty data first, so once closed I can immediately re-open, set baud rate, get NMEA, and send again
[10:15] <WillDuckworth> cool - so how do you transmit rtty over serial?
[10:15] <daveake> rtty is serial
[10:15] <daveake> You just send it
[10:15] <WillDuckworth> penny - dropping
[10:15] <daveake> :)
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[10:16] <daveake> Getting the timing right when waggling bits in software is going to be .... challenging. So I bypassed that challenge :)
[10:17] <WillDuckworth> simples
[10:17] <daveake> Very
[10:18] <Lunar_Lander> xD!
[10:18] <daveake> Once I got the baud rate stuff and port listening/talking working, I just ported my rtty-building and nmea-parsing code over from Arduino. Job jobbed.
[10:20] <WillDuckworth> need my pi now; to get up to speed :)
[10:20] <daveake> Well I have a spare; happy to sell at cost
[10:20] <fsphil-laptop> I need my pi to get the speed up
[10:20] <daveake> If you're going to have a go, the first thing you need to do (after getting animag loaded and running) is stop the serial port being used for the usual stuff
[10:21] <Lunar_Lander> the bad thing is that the atmega2560 is only available as SMD
[10:21] <daveake> 1 - all the startup messages go out there, and you might as well turn those off
[10:21] <daveake> 2 - It starts a login prompt on the serial port, and you most definitely need to switch that off
[10:21] <daveake> Both easy; plenty of info on the web
[10:21] <WillDuckworth> cool, thanks for info
[10:21] <Lunar_Lander> daveake, have you used Eagle or so before?
[10:22] <daveake> I wrote my program in C but no doubt you could use Python or something
[10:22] <daveake> LL No
[10:22] <Lunar_Lander> ah
[10:22] <daveake> Finally, add the working program to init.d so it gets started up automatically
[10:22] <Lunar_Lander> do you think it's difficult to design a PCB?
[10:23] <daveake> For a tracker, no. For a motherboard, yes. How long is your string?
[10:23] <fsphil-laptop> is the eurus launch still go?
[10:23] <M0UPU> think so fsphil
[10:23] <daveake> Yes, they're filling a second balloon
[10:23] <M0UPU> leaky balloon so they are replacing now
[10:24] <fsphil-laptop> ah
[10:24] <daveake> XABEN's been rebooted and has GPS
[10:25] <gonzo__> good that they have extra gas, I suspect most of us have one fill's worth
[10:26] <Lunar_Lander> Lunar_Lander, what does that mean how long is your string?
[10:26] <Lunar_Lander> damn
[10:26] <Lunar_Lander> daveake I meant
[10:26] <Andy-g0poy> There are many convertors for SMD chips to other forms of connector see: http://www.futurlec.com/SMD_Adapters.shtml
[10:26] <Lunar_Lander> I thought about making a tracker with sensors one day
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[10:27] <Andy-g0poy> The 100 pin TQPF adaptor is $1.50
[10:27] <Lunar_Lander> yea
[10:27] <Lunar_Lander> thank you
[10:27] <daveake> "Is it difficult to design a PCB?" === "How long is a piece of string?"
[10:28] <Lunar_Lander> xD
[10:28] <SpeedEvil> np: I got 99 layers and the silkscreen ain't one.
[10:28] <Lunar_Lander> xD
[10:29] <gonzo__> 99! a pcb that is thicker than any other dim!
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[10:29] <Lunar_Lander> xD
[10:29] <Lunar_Lander> sorry I am repetitive
[10:31] <nosebleedkt> Lunar_Lander: your football was better :)
[10:31] <Lunar_Lander> yea
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[10:35] <nosebleedkt> Lunar_Lander: we didnt have karagounis or else... :ppp
[10:35] <Lunar_Lander> yea
[10:35] <Lunar_Lander> that wasn't that good or so?
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[10:35] <nosebleedkt> Lunar_Lander: he is a good and funny player
[10:36] <Lunar_Lander> cool
[10:36] <nosebleedkt> https://fbcdn-sphotos-a.akamaihd.net/hphotos-ak-ash4/481360_3427193283407_469709061_n.jpg
[10:36] <nosebleedkt> Lunar_Lander: thats just so lol
[10:37] <nosebleedkt> and that's karagounis: http://transfernews.gr/wp-content/uploads/2012/06/karagounis.jpg
[10:37] <nosebleedkt> he makes us laugh a lot
[10:38] <Lunar_Lander> xD
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[10:44] <navrac> ANY UPDATES ON THE LAUNCH YET?
[10:44] <navrac> oops sorry
[10:44] <M0UPU> lol
[10:45] <M0UPU> not at this time
[10:45] <M0UPU> I doubt they are sat there drinking tea and eating biscuits though
[10:46] <navrac> coffee and bacon butties?
[10:47] <SamSilver> there was a hole in the envelope of one
[10:47] <navrac> oh very annoying
[10:47] <SamSilver> and they never had any duct tape
[10:47] <SamSilver> http://imgur.com/gallery/wCFFu
[10:48] <Lunar_Lander> hi navrac M0UPU SamSilver
[10:48] <SamSilver> GDay LL
[10:48] <navrac> its started training here now - hope it isnt at the launch site
[10:49] <SamSilver> Lunar_Lander: I have been watching your YouTube tutorials
[10:49] <M0UPU> morning LL
[10:49] <Lunar_Lander> hi
[10:49] <Lunar_Lander> SamSilver, cool what do you think about them
[10:50] <SamSilver> my wife says she wants to see the face behind the voice
[10:50] <Lunar_Lander> ah
[10:50] <SamSilver> Lunar_Lander: they are great
[10:50] <Lunar_Lander> maybe I can do that one day
[10:50] <Lunar_Lander> thanks
[10:51] <navrac> havent seen them - and a search for lunarlander of youtube is probably a little pointless
[10:51] <SamSilver> my dad said "you are never to old to learn" and was studying till the day he died
[10:52] <Lunar_Lander> yea
[10:52] <Lunar_Lander> navrac, search for "WinzenFlyer"
[10:52] <SamSilver> watching this and have a glass of wine > http://www.youtube.com/watch?v=9zXYTwuwsyI&feature=related
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[10:54] <Lunar_Lander> yea
[10:56] <SamSilver> could it be that James is 15m taller than XABEN?
[10:56] <SamSilver> it seems that the diff in alti is always around 15m
[10:57] <SamSilver> or 12 now
[10:57] <SamSilver> 12m
[10:57] <M0UPU> ping jcoxon any ETA on launch ?
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[11:01] <navrac> i'm 30 miles from the launchsite and it is windy and heavy rain.
[11:01] <navrac> and thunder and lightning now
[11:01] <M0UPU> I don't think the forcast is any better
[11:01] <M0UPU> getting any better
[11:01] <M0UPU> lol
[11:01] <M0UPU> perfect launch conditions then
[11:02] <navrac> my sat disk points that direction and i cant get any sky reception because of the heavy rain
[11:02] <SamSilver> going to float just above the weather
[11:03] <M0UPU> needs to get through the weather first SamSilver
[11:03] <SamSilver> hmmm 27k kind of in it
[11:03] <M0UPU> also Xaben hasn't updated in a bit
[11:03] <SamSilver> Upu yip I agree
[11:03] <SamSilver> it is indoors
[11:03] <navrac> it has got to get thru the weather first
[11:04] <SamSilver> all flights are in weather
[11:04] <navrac> havinhg said that ther is blue sky moving in now
[11:04] <SamSilver> hold thumbs
[11:05] <M0UPU> right I'm going to take dog for a walk then
[11:05] <M0UPU> back soon
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[11:05] <Laurenceb_> whats happening?
[11:06] <SamSilver> M0UPU: what dog do you have? a greyhound
[11:06] <M0UPU> patterdale terrier
[11:06] <M0UPU> bbs
[11:06] <SamSilver> a collie
[11:07] <Laurenceb_> why no launch?
[11:08] <jcoxon> no launch
[11:08] <jcoxon> balloon broke
[11:09] <Darkside> ouch
[11:09] <SamSilver> jcoxon: http://imgur.com/gallery/wCFFu
[11:09] <navrac> bad luke james
[11:09] <Darkside> how?
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[11:11] <jcoxon> balloon got damaged on door
[11:11] <jcoxon> gust of wind
[11:11] <cuddykid> damn
[11:11] <jcoxon> we are stopping now
[11:11] <cuddykid> jcoxon: is that the 2nd?
[11:11] <jcoxon> yup
[11:11] <jcoxon> we were stupid to try again
[11:11] <cuddykid> :(
[11:12] <SamSilver> M0UPU: This small game hunter is a working dog and needs a lot of exercise. They need to be taken on a daily, brisk, long walk or jog.
[11:12] <SamSilver> jcoxon: you live and you learn
[11:12] <Laurenceb_> both balloons stopped?
[11:14] <SamSilver> By show of hands, how many of us have used duct tape for ducts?
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[11:15] <daveake> Having used it to tape up ducks or gaffers either
[11:15] <daveake> Heven't*
[11:15] <SamSilver> http://i.imgur.com/Yyd5Z.jpg
[11:16] <daveake> or that :)
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[11:20] <Elwell> SamSilver: \o - Have used it to patch extractor fan outlet
[11:20] <Elwell> cooker hood in a rented place
[11:20] <jcoxon> right shutting down
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[11:21] <SamSilver> Elwell: what % of duct tape usage have you then used for ducts?
[11:21] <SamSilver> most of us would be hard pressed to find a duct to use it on
[11:21] <Elwell> oh about 80cm in total :-)
[11:21] <SamSilver> tgreat stuff \
[11:21] <Elwell> out of god knows how many rolls
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[11:21] <SamSilver> lol
[11:22] <SamSilver> duct tape is the most miss-used product in the world
[11:23] <SamSilver> hmmm maybe KY Jelly comes a close 2nd
[11:23] <Lunar_Lander> XD daveake somehow I think of that margarine factory you said you had to work for an installation job
[11:24] <Elwell> KY is great to have in toolbox - fitting vacuum pipes on brakeline in car was a doddle
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[11:27] <SamSilver> I like to keep my KY with my duct tape and the pink furry handcuffs under my spare wheel in the car
[11:28] Nick change: SamSilver -> SamSilver_
[11:29] <Elwell> and the latex gloves?
[11:29] <Elwell> speaking of spare wheel - off to fix bike puncture
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[11:31] <gonzo__> hellerman sell an equiv of ky for their rubber cabl;e sleveing
[11:31] <gonzo__> which used to get an amusingly rude name
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[11:37] <M0UPU> launch scrubbed ?
[11:37] <M0UPU> meh 2 balloons
[11:37] Nick change: M0UPU -> Upu
[11:37] <Upu> thats bad luck
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[11:40] <Lunar_Lander> yea
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[11:43] <jcoxon> hey guys
[11:43] <jcoxon> sorry for the failed launch
[11:43] <jcoxon> just to gusty
[11:43] <daveake> Ah, no problem, shit happens
[11:43] <jcoxon> balloon caught a gust on the way out of the barn and touched the door
[11:43] <jcoxon> makeing a hole
[11:43] <daveake> ouch
[11:43] <daveake> and the first balloon?
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[11:45] <jcoxon> not really sure
[11:45] <jcoxon> managed to get to about 10m up then came down with a hole
[11:45] <jcoxon> perhaps same problem
[11:45] <eroomde> a hole in the door?
[11:45] <jcoxon> such a waste
[11:45] <eroomde> oh balooon
[11:45] <eroomde> bugger
[11:46] <jcoxon> payloads worked :-)
[11:46] <daveake> :)
[11:46] <jcoxon> we'll try again another dayh
[11:47] <jcoxon> maybe week 9th July
[11:52] <gonzo__> shame. Better luck next time
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[11:58] <F1src> quit
[11:59] <F1src> Next time is better
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[12:10] <Upu> shame jcoxon but the weather was never great
[12:19] <jcoxon> indeed
[12:19] <jcoxon> i think we can forget about June
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[12:33] <cuddykid> the weather is so annoying
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[14:06] <Lunar_Lander> cuddykid, yeah
[14:06] <Lunar_Lander> btw cuddykid hello
[14:06] <Lunar_Lander> xD sorry for missing that out
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[14:27] <Lunar_Lander> hello RocketBoy
[14:28] <RocketBoy> yo Lunar_Lander
[14:29] <Lunar_Lander> how are you?
[14:30] <RocketBoy> so-so after this mornings aborted launches
[14:30] <Lunar_Lander> yea
[14:30] <Lunar_Lander> can imagine that
[14:32] <RocketBoy> I guess it could have been worse
[14:41] <Lunar_Lander> yea
[14:42] <Lunar_Lander> thanks again for the info on how to program a uC without arduino
[14:42] <Lunar_Lander> IIRC we talked about that
[14:44] <Lunar_Lander> RocketBoy, is it difficult to implement an SD card without having arduino software avaliable?
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[14:48] <RocketBoy> humm thats difficult to answer - depend on how experanced the person is - it took me a couple of days to get a basic file directory read/write working from scratch.
[14:51] <Laurenceb_> eroomde: ping
[14:53] Action: Laurenceb_ is looking for pans
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[15:00] <griffonbot> Received email: Steve Aerospace "Re: [UKHAS] Eurus 2 Launch Sunday 1000 BST"
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[17:30] <Lunar_Lander> hey Jessica_Lily
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[17:40] <fsphil> aww no launch
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[17:46] <daveake> Nope. Shame.
[17:47] <WillDuckworth> hey daveake - how did you generate the shift with the pi?
[17:48] <daveake> Pi-->30k --> NTX2. NTX2 --> 4k7 --> 3V3. NTX --> 4k7 --> GND.
[17:48] <daveake> Same as I do on an Arduino
[17:48] <Lunar_Lander> btwe s.gullipics.com/image/v/4/0/5ztsas-j9l9me-xv3l/IMG0063.jpeg
[17:49] <Lunar_Lander> wait
[17:50] <Lunar_Lander> http://s.gullipics.com/image/v/4/0/5ztsas-j9l9me-xv3l/IMG0063.jpeg
[17:51] <Lunar_Lander> my lab
[17:51] <Lunar_Lander> xD
[17:52] <WillDuckworth> cheers dave - also, did you tweak the baud stuff using stty e.g. stty 50 cs7 cstopb -F /dev/tty0
[17:52] <WillDuckworth> nice layout LL
[17:54] <daveake> Weeeell, all that's within the C program so it's system calls rather than stty
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[17:54] <Lunar_Lander> WillDuckworth, well thanks, I think it is rather like a mess
[17:54] <Lunar_Lander> xD
[17:54] <daveake> Also it's 300 baud, 8 bits 2 stop bits.
[17:54] <WillDuckworth> ta
[17:54] <daveake> and the serial port on the pi is /dev/ttyAMA0
[17:54] <daveake> But essentially what you said is correct :)
[17:55] <daveake> You could probably program the whole thing in a shell script with a bit of awk :D
[17:56] <jonsowman> that is always true and always a bad idea
[17:56] <jonsowman> :P
[17:57] <daveake> :)
[17:57] <Lunar_Lander> daveake, jonsowman opinions on my breadboard?
[17:57] <Lunar_Lander> xD
[17:57] <fsphil> Naturally, that's how Tim did it
[17:57] <Lunar_Lander> hi fsphil
[17:57] <daveake> fsphil Really?
[17:57] <daveake> Oh
[17:57] <fsphil> yo Lunar_Lander
[17:57] <jonsowman> looks good Lunar_Lander
[17:57] <fsphil> daveake: yep :) the first payload powered by bash
[17:58] <Lunar_Lander> thanks
[17:58] <fsphil> it's typical- the day we come home from the beach is when the sun comes out
[17:58] <daveake> Did it work, or was it mv payload /dev/null ?
[17:58] <fsphil> it sort of worked
[17:59] <fsphil> it kept cutting off the end of strings
[17:59] <fsphil> not sure how he fixed that
[17:59] <Lunar_Lander> jonsowman, fsphil daveake https://de.wikipedia.org/wiki/Breadboard#Einschr.C3.A4nkungen
[17:59] <Lunar_Lander> the picture at the right xD
[18:00] <daveake> LL Yours looks fine. I'm not a fan of breadboards - circuits on them are a bit delicate.
[18:01] <fsphil> my breadboard ntx2 is putting out huge amounts of noise
[18:01] <fsphil> I'm unable to decode it
[18:02] <fsphil> right, food time
[18:02] <jonsowman> breadboards + RF generally equals sadness]
[18:04] <Lunar_Lander> daveake, thanks
[18:04] <Lunar_Lander> yeah as I said I am transferring the circuit to a stripboard
[18:04] <Lunar_Lander> I already did the PSU
[18:04] <Lunar_Lander> and a GPS socket, and a barometer socket
[18:04] <daveake> Keep the NTX2 radio side out of the board
[18:04] <Lunar_Lander> which only lacks the decoupling capacitor
[18:04] <jonsowman> might as well go straight to PCB
[18:04] <Lunar_Lander> yea
[18:04] <Lunar_Lander> I already got KICAD as a friend recommended that
[18:05] <Lunar_Lander> daveake, so don't have the NTX2 at all on the board?
[18:05] <daveake> you could bend the pins so the RF ones are not in the board but the others are
[18:06] <Lunar_Lander> ah, so the three antenna pins shouln't be o
[18:06] <Lunar_Lander> *on
[18:06] <Lunar_Lander> or take an extra piece of board you say?
[18:06] <daveake> No I didn't say
[18:06] <Lunar_Lander> ah
[18:07] <Lunar_Lander> can you explain it again please?
[18:08] <daveake> Imagine the NTX2 flat on the board. The pins are horizontal. Bend the non-RF ones down into the board. Then you can connect those as normal. For RF solder on some thin coax (e.g. 174) to an aerial
[18:09] <daveake> Otherwise the bars in the breadboard are your antenna. And those are the wrong length, and are parallel with other lines doing other stuff.
[18:09] <Lunar_Lander> ah
[18:09] <Lunar_Lander> yeah we talked about that IIRC
[18:09] <Lunar_Lander> that you'd have to break the traces to prevent them being an antenna
[18:10] <daveake> Which you can easily on vero, if you go that route
[18:10] <Lunar_Lander> yeah
[18:10] <Lunar_Lander> the idea to take a drill was good
[18:10] <daveake> RF is magic. Don't annoy the RF gods. They always win.
[18:10] <Lunar_Lander> it took a few moments to figure it out
[18:10] <Lunar_Lander> yeah
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[18:20] <griffonbot> Received email: SP9UOB "[UKHAS] Re: Launch 23.06.2012 Gliwice glider airport / Poland"
[18:20] <Laurenceb_> glider?!
[18:24] <Laurenceb_> doesnt look very exciting data
[18:24] <Lunar_Lander> yea
[18:24] <Lunar_Lander> fsphil, you have ubuntu too right?
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[19:05] <Lunar_Lander> btw
[19:05] <Lunar_Lander> what is manhattan style?
[19:05] <Lunar_Lander> soldering stuff on a copper plate?
[19:05] <Laurenceb_> http://groups.google.com/group/ukhas/browse_thread/thread/10b87f666b93c78a
[19:05] <Laurenceb_> hehe
[19:05] <fsphil> I use fedora Lunar_Lander
[19:06] <Lunar_Lander> ah
[19:06] <Lunar_Lander> OpenShot is that video editor right?
[19:06] <fsphil> t
[19:06] <fsphil> it is
[19:06] <fsphil> it's quite good
[19:07] <Lunar_Lander> cool
[19:07] <Lunar_Lander> thx
[19:08] <fsphil> I need better laptop batteries
[19:09] <fsphil> I had two lead-acid batteries that only lasted an hour each running the eeepc
[19:10] <nick_> We need laptops that can run on a potato
[19:11] <Lunar_Lander> xD Portal 2!!!
[19:11] <fsphil> po tate oh
[19:12] <Lunar_Lander> fsphil,
[19:12] <Lunar_Lander> what is manhattan style?
[19:12] <Lunar_Lander> soldering stuff on a copper plate?
[19:12] <fsphil> think so
[19:12] <BrainDamage> yes
[19:12] <fsphil> googled it?
[19:12] <nick_> Why would you do that?
[19:12] <Lunar_Lander> well I remember it from iHAB 2 of W0... what was his name?
[19:13] <fsphil> I don't get the reference to manhatten
[19:13] <Lunar_Lander> yea he said that it is called that way
[19:13] <fsphil> seems a silly way to build things
[19:15] <nick_> fsphil: the page I found said it looked like a grid city skyline
[19:18] <fsphil> well makes sense
[19:23] <Lunar_Lander> yea
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[19:53] <upix> Good evening (or whatever time of day it is to you)
[19:54] <fsphil> good evenoon
[19:56] <jcoxon> hey
[19:56] <jcoxon> damn wind has calmed down now
[19:56] <jcoxon> 6 hours too late
[19:58] <Upu> lol
[19:58] <Upu> bit of a bummer loosing 2 balloons
[19:58] <Upu> so have you got time to launch next weekend ?
[19:59] <jcoxon> no
[19:59] <jcoxon> working
[19:59] <jcoxon> will be a few weeks
[19:59] <Upu> shame
[19:59] <jcoxon> payload is ready...
[19:59] <Upu> sadly the weather won't play
[19:59] <Upu> afk a bit
[20:00] <Lunar_Lander> hi upix jcoxon Upu
[20:02] <fsphil> weather ruins a lot of things
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[20:04] <jcoxon> how was camping?
[20:05] <fsphil> soggy :)
[20:05] <fsphil> the sun came out today as I was heading home
[20:07] <Laurenceb_> anyone here a pro with openoffice?
[20:07] <Laurenceb_> im confused by tables
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[20:30] <joph> get libreoffice :P
[20:31] <nick_> \begin{tabular}....
[20:32] <Laurenceb_> hehe
[20:32] <Laurenceb_> merge works
[20:33] <Laurenceb_> nick_: yeah i know
[20:33] <Laurenceb_> its not my project - has to use docx
[20:33] <Lunar_Lander> joph, YAY!
[20:34] <Lunar_Lander> btw I found out something awesome
[20:34] <nick_> docx, the most illegal file format
[20:34] <Lunar_Lander> you can have the atmega2650 on a PCB as normal soldering as there is an adapter
[20:34] <Lunar_Lander> :P
[20:35] <fsphil> you have to solder the adapter
[20:35] <Lunar_Lander> yea
[20:35] <Lunar_Lander> hm
[20:35] <Lunar_Lander> professor said we got a SMD oven or so
[20:35] <fsphil> any oven is an smd oven :)
[20:36] <nick_> Do you really need an oven for atmega2650?
[20:36] <fsphil> flux, solder, iron and braid
[20:36] <Lunar_Lander> yea
[20:36] <Lunar_Lander> but 100 pins!
[20:36] <fsphil> you can do each side in one go
[20:36] <fsphil> four sides
[20:37] <fsphil> do one pin to hold it in place
[20:37] <fsphil> then do the entire row
[20:37] <fsphil> x4
[20:37] <Lunar_Lander> but the solder will run all over the pins
[20:37] <nick_> Why would you use an atmega2650 rather than a lpc1768, for example?
[20:38] <fsphil> the solder will stick to the track and pins
[20:38] <Lunar_Lander> atmega2506 is like arduino mega
[20:38] <fsphil> any bridges can be removed with braid
[20:38] <Lunar_Lander> ah
[20:38] <fsphil> I wouldn't have believed it but I've done it myself recently
[20:38] <Lunar_Lander> yea
[20:38] <Lunar_Lander> what's lpc1786?
[20:39] <nick_> It's the chip in a standard mbed
[20:39] <Lunar_Lander> ah
[20:39] <nick_> cortex 3m
[20:39] <Lunar_Lander> sorry don't have experience with it
[20:39] <Lunar_Lander> is it good?
[20:39] <nick_> 32 bit processor
[20:39] <Lunar_Lander> ah
[20:39] <nick_> A bit cheaper than the atmega
[20:39] <nick_> I think it uses less power, has a smarter brain maybe
[20:40] <upix> don't you think contex m3 is a bit of overkill here
[20:40] <fsphil> I've limited myself to microcontrollers that have gcc support
[20:40] <nick_> What makes it overkill?
[20:40] <Laurenceb_> stm owns lpc
[20:40] <nick_> Isn't there gcc arm compilers for it?
[20:40] <Laurenceb_> :P
[20:41] <Laurenceb_> theres gcc for lpc and stm
[20:41] <fsphil> nice
[20:41] <BrainDamage> fsphil: there's still tons of them
[20:41] <fsphil> is there an equivilient to avrdude?
[20:41] <BrainDamage> even pic
[20:41] <nick_> (I've not used a local toolchain, I've been using mbed.org's cloud compiler.
[20:41] <fsphil> gcc has no pic support
[20:41] <nick_> )
[20:41] <Laurenceb_> i use texane and gdb
[20:41] <BrainDamage> fsphil: there's a gcc port for pics
[20:41] <BrainDamage> mind you, not all pics
[20:41] <fsphil> cool
[20:42] <BrainDamage> personally, I go with stm32
[20:42] <fsphil> the reason I switched to the avrs was so I could use C with gcc
[20:42] <BrainDamage> like faprenceb
[20:42] <fsphil> assembly is fun, but only so much
[20:42] <nick_> What's the difference between stm32 and lpc1768?
[20:42] <BrainDamage> periferials mostly
[20:42] <BrainDamage> and cost
[20:43] <upix> nick_: 32bits and 100Mhz or more seems like an overkill for simple tasks
[20:43] <fsphil> yea, why do you need such a big processor Lunar_Lander?
[20:43] <upix> not saying it's a bad idea to use it
[20:43] <BrainDamage> upix: but then you see an atmega's cost, and see you can buy the 32 bit overkill cpu
[20:43] <BrainDamage> for less
[20:43] <nick_> Yeah, but if the chip is cheaper...
[20:44] <upix> not if you already have one
[20:44] <upix> i mean if you have chip on hand already why buy another one
[20:44] <BrainDamage> because you eventually run out?
[20:44] <nick_> I guess the price difference isn't huge since htey are both only a few pints in cost.
[20:46] <upix> probably
[20:47] <nick_> I've got £10.40 vs £7.50
[20:47] <nick_> So I'd save a pint with the overkill
[20:47] <BrainDamage> stm32 vs lpc?
[20:47] <nick_> atmega vs lpc
[20:47] <BrainDamage> or vs atmega?
[20:47] <BrainDamage> throw an stm32f4 for lol
[20:47] <BrainDamage> 400MIPS with hw floating point
[20:48] <BrainDamage> or if you prefer, since in hab power matters
[20:48] <BrainDamage> a stm32L
[20:48] <BrainDamage> which is optimized for power budget
[20:48] <nick_> OK, so the stm32 is even cheaper
[20:48] <Randomskk> power really doesn't matter that much for the levels we're talking about here :P
[20:48] <Randomskk> the stm32s are really nice and very powerful
[20:48] <Randomskk> though F4s are almost certainly overkill for a HAB payload
[20:49] <Lunar_Lander> fsphil, cause I have experience with arduino mega :)
[20:49] <nick_> Depends on your payload
[20:49] <Lunar_Lander> yea
[20:49] <nick_> I could run a cosmic detector that could need the computing power
[20:49] <Lunar_Lander> I already need at least two UARTs cause of the GPS
[20:49] <Lunar_Lander> yea
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[20:50] <BrainDamage> careful tough, if you're used to arduino stuff
[20:50] <BrainDamage> this will look very complicated
[20:50] <upix> Lunar_Lander: what are you using second uart for?
[20:50] <Randomskk> sure, there are things that might. I made one with an F4...
[20:51] <nick_> The move from ardiuno to lpc is simple via mbed
[20:51] <Lunar_Lander> ah I mean I have connected my GPS to UART 1
[20:51] <Lunar_Lander> cause UART 0 is used by the computer during uploading stuff or so
[20:52] <nick_> Can't you get around that by disconnecting the gps for upload?
[20:55] <Lunar_Lander> well isn't that GPS fixed when it is on a real PCB?
[20:56] <nick_> Oh yes, you're making up a board.
[20:57] <Lunar_Lander> yea theoretically
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[21:04] <upix> you can have a connector on board
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[21:21] <Laurenceb_> lol epic footie tention
[21:21] <Laurenceb_> tension
[21:21] <Laurenceb_> massive 999 heart attack calls
[21:23] <Lunar_Lander> done! https://www.youtube.com/watch?v=vQowh4mlDy8&feature=youtu.be
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[21:57] <Lunar_Lander> did anyone of you use kicad before?
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[22:19] <griffonbot> Received email: Anthony Stirk "Re: [UKHAS] Re: Launch 23.06.2012 Gliwice glider airport / Poland"
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[00:00] --- Mon Jun 25 2012