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[00:12] <Lunar_Lander> wb Upu
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[00:21] <griffonbot> Received email: Dave "Re: [UKHAS] XABEN-21 flight announcement."
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[00:32] <griffonbot> Received email: Dave "Re: [UKHAS] XABEN-21 flight announcement."
[00:40] <CovBalloon> hello?
[00:45] <Lunar_Lander> hello
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[00:48] <CovBalloon> Hi, just finishing some work most people in the UK have gone to bed
[00:59] <Lunar_Lander> yea
[01:00] <Lunar_Lander> I'll go to bed soon too
[01:05] <Lunar_Lander> what did you do CovBalloon?
[01:11] <griffonbot> Received email: Adrian Hicks "Re: [UKHAS] XABEN-21 flight announcement."
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[07:51] <x-f> good morning, world
[07:51] <number10> morning
[07:53] <UpuWork> morning
[08:00] <MrCraig> morning
[08:01] <natrium42> morning
[08:01] <Darkside> evening
[08:02] <zyp> morning
[08:04] <Upu> Darkside is out voted
[08:04] <Upu> its morning :)
[08:04] <Darkside> bah
[08:05] <MrCraig> yeah - but it's morning GMT not morning UTC too :-)
[08:05] <x-f> he will have "TGIF" sooner than us
[08:07] <x-f> i met with the chief or aeronavigation from our CAA this morning, and in the end he was positively minded about our idea to launch a HAB
[08:07] <MrCraig> :-) Good news
[08:07] <x-f> he was really impressed with the CUSF landing predictor (i showed him a sample screenprint)
[08:07] <x-f> (another "thank you" to habitat people)
[08:08] <x-f> said that this data is probably more accurate than our met-office could provide
[08:08] <x-f> now need to apply for a NOTAM officially, but otherwise we have a go
[08:08] <MrCraig> :-)
[08:14] <x-f> he said, i might have a chat with people from ministry of defence tho
[08:14] <x-f> about photographing :))
[08:15] <x-f> (from altitude)
[08:15] <x-f> will see how that turns out
[08:15] <x-f> anyway - have a nice day (or evening) you too!
[08:16] <MrCraig> Have a good day x-f, and everyone else too, I'm off to work.
[08:17] <x-f> :)
[08:21] <griffonbot> Received email: Anthony Stirk "Re: [UKHAS] XABEN-21 flight announcement."
[08:24] <x-f> Darkside, are radar reflectors for balloons mandatory in Australia? i've seen you have used it on some Horus flights
[08:24] <Darkside> not mandatory
[08:24] <Darkside> but we're told CASA we'd do it
[08:24] <Darkside> we told CASA*
[08:24] <Darkside> and for the larger flights it can help collision avoidance radar detect the payload
[08:25] <x-f> i see
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[08:40] <eroomde> http://www.youtube.com/watch?feature=player_embedded&v=Aw11NFz14sA#!
[08:40] <eroomde> NERDGASM
[08:44] <Darkside> wow
[08:44] <Darkside> the landing
[08:44] <Darkside> / crash
[08:46] <eroomde> the sonic boom is astounding
[08:47] <Darkside> yah
[08:47] <eroomde> I WANT
[08:47] <eroomde> although i would like the parachutes on our 20km rocket to work
[08:47] <eroomde> please, lords of parachuteage
[08:48] <gonzo__> is there a saint of 'chutes?
[08:49] <LazyLeopard> Erf. It's much easier to tip a laptop screen sideways...
[08:50] <eroomde> saint tangle of bridlelines
[08:52] <LazyLeopard> ooooops....
[08:53] <eroomde> i don't understand the logic behind a lot of their recovery system
[08:53] <eroomde> but i really don't see why the line of the ballute detached - that's worrying!
[08:54] <LazyLeopard> I take it that chute wasn't supposed to part company with the rest of the rocket...
[08:54] <eroomde> i don't think what we saw in the video was the nominal recovery sequence, no
[08:54] <eroomde> perhaps the most time efficient, though
[08:57] <LazyLeopard> Yeah, the linked report has some pictures of the debris...
[09:10] <eroomde> ' The roughly 15 feet of rocket above the intertank bulkhead, including the fuel tank, composite pressurization tank, computer, payload, four HD cameras, and recovery flyback system were compressed into about two feet.'
[09:10] <eroomde> giggle
[09:17] <UpuWork> 2 videos from you I need to watch now Ed
[09:17] <UpuWork> Not watched the other you sent me yet
[09:17] <eroomde> this one above is pretty awesome
[09:17] <eroomde> a shortish
[09:18] <eroomde> it's the armadillo aerospace rocket going to 95km
[09:18] <eroomde> and coming back again faster than intended
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[09:18] <UpuWork> I blocked Youtube at work as my wonderful engineers kept playing Nyan cat on loop
[09:19] <Darkside> awwwwwwwwwww
[09:19] <Darkside> thats mean
[09:22] <UpuWork> oh and the This is Sparta Dubstep
[09:23] <eroomde> most recent comment: "My family is so stupid i've been listening to this for likeÿ an hour and they now think im reatrded.."
[09:24] <eroomde> right i should get me to work
[09:24] <eroomde> ttfn
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[09:25] <Hix> I'd have connected them to three phase for the Nyan Cat thing
[09:27] <Hix> And the Sparta Dubstep - sounds like it was produced on an Arduino [and I don't mind dubstep]
[09:28] <Darkside> hahaha
[09:28] <Darkside> i've done the arduino music stuff :P
[09:30] <Hix> The race build bays at renault used to have euro gaybar techno pumping out pretty much constantly and occasionally Motorhead
[09:30] <Darkside> hahahahha
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[10:05] Nick change: HixXChat -> _Hix
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[10:07] <cuddykid> what a night
[10:12] <_Hix> did you struggle to get into your place due to an excess stockpile of deliveries
[10:13] <fsphil> 95km.. that's a great altitude
[10:13] <fsphil> armadillo are making great progress all of a sudden
[10:15] <cuddykid> _Hix: haha, fortunately I had popped all the boxes up high - otherwise it might have been a struggle
[10:16] <cuddykid> someone set the fire alarm off at 5am after they burnt popcorn - mind boggles at why someone would want popcorn at 5am
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[10:18] <_Hix> how the fuck do you burn popcorn?
[10:18] <cuddykid> haven't got a clue - I think they put it in the microwave
[10:20] <fsphil> "Six HD cameras left the ground, one memory card survived the landing" hehe
[10:21] Nick change: golddragon24 -> thanatus
[10:23] <_Hix> that's what I was thinking - -did they put a lightbulb in there too? The mind boggles - How can a species be so dumb as to BURN microwave popcorn :)
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[10:25] <SpeedEvil> fsphil: My UAV was designed with a CF egg, for the expensive bits and data. Designed for impact at ~100MPH
[10:25] <BrainDamage> maybe he spent the whole night awake and in the haze he didn't realize he turned the time dial too much
[10:25] <SpeedEvil> fsphil: That's trickier at high speed of course.
[10:26] <cuddykid> _Hix: probably lol
[10:26] <cuddykid> have you received your solder station yet?
[10:29] <_Hix> Nope - goes to check dpd
[10:30] <_Hix> whoop! Out for delivery
[10:31] <_Hix> that'll be me detroying stuff tonight then :D
[10:31] <_Hix> or destroying even.
[10:37] <Laurenceb> impressive from armadillo
[10:37] <Laurenceb> they need to reinforce their chute lines :P
[10:38] <_Hix> graphene chord should do it
[10:38] <_Hix> cord - god....
[10:38] <Laurenceb> cord god would also help
[10:39] <_Hix> kewl - mintyboost kit and adafruit gps SD shield shipping nowe too
[10:40] <_Hix> sod it, I'm not correcting my typing anymore
[10:43] <cuddykid> _Hix: great news :D
[10:44] <cuddykid> _Hix: my parcel number just gives "Your search did not find any matching tracking. Please refine your search criteria."
[10:44] <griffonbot> Received email: "Re: [UKHAS] XABEN-21 flight announcement."
[10:44] <_Hix> not so much - mintyboost not being delivered as not in stock anymore. Bum
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[10:46] <cuddykid> is this XABEN another float attempt?
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[10:46] <Laurenceb> ok... i have two SAW filters
[10:46] <Darkside> Laurenceb: gps ones?
[10:46] <Laurenceb> one has large pads and is 3x3mm
[10:46] <Laurenceb> yes
[10:46] <Darkside> heh
[10:47] <Laurenceb> the other is ~1mm square
[10:47] <Darkside> i have a few 433MHZ ones
[10:47] <Darkside> they are weenie
[10:47] <Laurenceb> with 0.2mm square pads
[10:47] <Laurenceb> im not sure how well they will solder stencil
[10:47] <Laurenceb> did you use solder stencil?
[10:48] <Laurenceb> im thinking the paste might stick to the stencil at such a small size
[10:48] <Laurenceb> due to the thinkness of the stencil it'll stick to the sides
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[10:53] <cuddykid> Hi WIllDuckworth :) launch still on for first weekend of march?
[10:54] <WillDuckworth> fingers crossed :) all bugs ironed out
[10:55] <cuddykid> brilliant - I should be around on the Saturday to listen in etc
[10:57] <griffonbot> Received email: Anthony Stirk "Re: [UKHAS] XABEN-21 flight announcement."
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[11:00] <_Hix> *splosh
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[11:03] <fsphil> RocketBoy may have his own recovery fleet by now
[11:03] <UpuWork> indeed
[11:04] <number10> i guess will probbly will be slow ascent http://habhub.org/predict/#!/uuid=709ae0e003021cdf892140c35a285ff766aa7e73
[11:04] <UpuWork> thats my guess too
[11:04] <griffonbot> Received email: Josh Taylor "[UKHAS] New project to follow!"
[11:04] <number10> steve is very brief with the announcements - but then he may have good reason to be
[11:05] <UpuWork> He does commercial stuff
[11:05] <UpuWork> hmm
[11:05] <UpuWork> Josh...
[11:05] <UpuWork> this will be interesting his last suggestion was exploding paint at 30km to make "high altitude art"
[11:06] <number10> oh no
[11:06] <UpuWork> oh it is that one
[11:06] <UpuWork> haha
[11:06] <UpuWork> I politely declined the offer to get involved in that
[11:07] <number10> I think I should pull my finger out and get a launch before we get banned
[11:08] <number10> one bit of bad press and the government rush into legislation
[11:11] <cuddykid> yeah, but I think there is a significant public backing for what we do - the news reports etc of some of our launches get significant support
[11:12] <cuddykid> also, it would be fairly hard to regulate - and the met office still have to send balloons up
[11:13] <oh7lzb> Would be fun if the paint exploded accidentally just before launch, or wouldn't explode at all
[11:14] <oh7lzb> the guy recovering the package might become nervous when approaching it
[11:14] <griffonbot> Received email: David Akerman "Re: [UKHAS] XABEN-21 flight announcement."
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[11:17] <_Hix> i figured it would be something along the lines of exploding paint.
[11:18] <_Hix> that or a creme egg advert - ooooh theres an idea. they're big on exploding creme-eggs at the moment
[11:22] <griffonbot> Received email: "Re: [UKHAS] XABEN-21 flight announcement."
[11:28] <cuddykid> need to go and pick my RS order up :D
[11:38] <CovBalloon> An AOR AR8000 has arrived on my doorstep
[11:40] <fsphil> great when that happens
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[11:41] <_Hix> :D
[11:42] <griffonbot> Received email: Anthony Stirk "Re: [UKHAS] XABEN-21 flight announcement."
[11:42] <CovBalloon> one of the battery terminals has very slight corrosion that will need dealing with
[11:43] <_Hix> :| easy to get to?
[11:43] <CovBalloon> very
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[11:43] <_Hix> cool - ok to pop round tonight?
[11:43] <CovBalloon> full access from the large battery area
[11:44] <CovBalloon> sure
[11:45] <_Hix> kewl
[11:45] <CovBalloon> Mine hasnt arrived yet
[11:45] <CovBalloon> fancy setting the arduino up and testing?
[11:48] <_Hix> bit tight on time this eve - got to pick someone up on their way back from Ireland. Feel free to use it today if you need to test
[11:48] <CovBalloon> too busy working at the moment
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[11:53] <CovBalloon> http://www.accesscomms.com.au/Manuals/AR8000manual.pdf
[11:53] <CovBalloon> You might want to print or download the manual
[11:57] <cuddykid> time to go and collect RS stuff
[11:58] <Laurenceb> take your ref number
[11:58] <cuddykid> will do - is that all that's needed Laurenceb?
[11:59] <Laurenceb> yes
[11:59] <cuddykid> brilliant
[12:00] <cuddykid> hopefully it won't rain, skies look threatening though :P
[12:00] <cuddykid> bbl
[12:01] <_Hix> CovBalloon - already done it, cheers though
[12:02] <CovBalloon> listening to radio 4, at least it works
[12:03] <_Hix> :)
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[12:11] <Darkside> hrmm
[12:11] <Darkside> cant add ESD protection to this SDR
[12:11] <Darkside> it'll kill the IIP3 performance
[12:13] <Laurenceb> receiver?
[12:14] <Darkside> yeah, a frequency agile SDR i'm working on
[12:15] <Laurenceb> hmm
[12:15] <Laurenceb> what have you opted on for the architecture?
[12:15] <Darkside> i'll be having a LNA in front of it almost all the time, so the LNA will provide protection
[12:15] <Darkside> Laurenceb: its only a narrowband SDR, 48KHz
[12:16] <Darkside> so i'm just using a usb sound codec IC for interfacing
[12:16] <Laurenceb> single conversion?
[12:16] <Darkside> yes
[12:16] <Darkside> direct to baseband
[12:16] <Darkside> though the mixer is really designed for converting an IF to baseband
[12:16] <Darkside> hence why i need LNAs on the front of this thing
[12:16] <Darkside> else its not sensitive enough
[12:17] <Laurenceb> hmm
[12:17] <Laurenceb> what about harmonics in the LO?
[12:17] <Darkside> well first off, its a 2xLO
[12:17] <Laurenceb> yeah
[12:17] <Laurenceb> i dont understand how that can work
[12:17] <Darkside> and i have a 7th order filter
[12:17] <Laurenceb> without loads of harmonics
[12:17] <Darkside> eh?
[12:18] <Darkside> its a sine wave input
[12:18] <Laurenceb> so you input 2xlo
[12:18] <Darkside> yes
[12:18] <Darkside> it does some kind of divide by 2
[12:18] <Laurenceb> then isnt it just treated digitally
[12:18] <Laurenceb> yeah
[12:18] <Laurenceb> so you get square waves
[12:18] <Laurenceb> ie a ton of harmonics
[12:18] <Darkside> http://cds.linear.com/docs/Datasheet/5517f.pdf
[12:18] <Laurenceb> so its going to receive 2*f, 3*f etc
[12:19] <Laurenceb> yeah ive read the datasheet
[12:19] <Darkside> Laurenceb: yet, surprisingly it doesnt receiver 2*f, 3*f
[12:19] <Darkside> it just... works
[12:19] <Darkside> MAGIC.
[12:19] <Laurenceb> funcube solves this issue with filters on the front
[12:19] <Laurenceb> wtf
[12:19] <Laurenceb> you have tested this?
[12:19] <Darkside> we do have filter on the front anyway :-)
[12:19] <Darkside> filters*
[12:20] <Darkside> theres going to be a filter bank on the front of this
[12:20] <Laurenceb> have you tested rejection of 2f, 3f etc?
[12:20] <Laurenceb> ok
[12:20] <Laurenceb> i dont see how that design could reject them
[12:23] <Laurenceb> http://slack.net/~ant/bl-synth/4.harmonics.html
[12:23] <Laurenceb> unless it does something clever... square waves have odd numbered harmonics
[12:23] <Laurenceb> but its all analogue so...
[12:23] <Darkside> mm
[12:24] <Darkside> the softrock has a bandpass filter on it
[12:24] <Laurenceb> wait
[12:25] <Laurenceb> maybe theres a DSP technique to filter it out
[12:25] <Darkside> still, its not hard to make small lowpass filters at HF
[12:25] <Laurenceb> maybe the image reject will reject it
[12:26] Action: Laurenceb confused
[12:27] <Laurenceb> so the divide by 2 outputs two square waves with 90degree offset
[12:27] <Laurenceb> lets say
[12:28] <Darkside> the question there is if it does actually output square waves
[12:29] <Laurenceb> hmm yeah
[12:29] <Darkside> or if there is a divide by 2 that doesnt output square waves
[12:29] <Laurenceb> if it outputs square waves it breaks
[12:29] <Laurenceb> 3f have inverted phase, 5f has noninverted
[12:29] <Laurenceb> thats the only "interesting" thing that happens
[12:30] <Laurenceb> yes, theres nonlinear circuits
[12:30] <Darkside> worse case is that it does need filtering
[12:30] <Darkside> and since it only does down to 10MHz anyway, thats not so hard to do
[12:31] <eroomde> stilldavid: http://www.sparkfun.com/products/10210 pic is wrong (or description wrong). 1mm pitch would make the distance between either end of the contacts 5mm, which it clearly isn't by the photo!
[12:31] <Laurenceb> http://en.wikipedia.org/wiki/Frequency_divider
[12:33] <Laurenceb> i dont see anything that has wide tunability
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[12:35] <Darkside> mm
[12:35] <Laurenceb> yeah i dont see how it could work
[12:36] <Laurenceb> unless it has an input filter
[12:36] <Laurenceb> funcube actually says it uses a digital input
[12:36] <Darkside> the funcubes elonics chip has some really weird filter banks inside it
[12:36] <Darkside> all done in silicon
[12:36] <Laurenceb> yeah
[12:37] <Laurenceb> thats why it works imo
[12:37] <Darkside> mm
[12:37] <Darkside> anyway, low-pass filters can be made small
[12:37] <Laurenceb> you may be wasting your time :p
[12:37] <Darkside> ?
[12:38] <Laurenceb> trying to make a widely tunable SDR
[12:38] <Darkside> its really only for HF
[12:38] <Laurenceb> of course if you dont mind grabbing a new filter for each range then itll be fine
[12:38] <Darkside> i'm targeting DRM stations
[12:38] <Laurenceb> i guess its only like grabbing a new ant
[12:39] <Darkside> i'm targeting DRM stations here
[12:39] <Laurenceb> ok
[12:39] <Darkside> i could cover 10-30MHz with 2 sharp filters
[12:39] <Darkside> i'll need to work that one out
[12:39] <Darkside> see how sharp i can get it
[12:39] <Darkside> and in what kind of space
[12:42] <Darkside> Laurenceb: http://www.wb5rvz.com/sdr/hf_bpf/
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[12:42] <Darkside> check that out
[12:42] <Darkside> thats my solution
[12:42] <Darkside> of course the hams already did it :P
[12:43] <Laurenceb> looks sane
[12:43] <Darkside> and i really onlu need bans 3 and 4
[12:43] <Darkside> 8-16MHz and 16-30MHz
[12:45] <Darkside> though i'd probably used fixed value smd inductors instead of winding my own if possible
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[12:50] <Darkside> Laurenceb: http://f1.grp.yahoofs.com/v1/QCpGT62AbJ0UbQYtj6JSMOTC-sBmeDA8lHTMUnQkm_LOOyIdLgLTOLKkX89v0zS7SVSlUIWdqafp2MwqJHf3GtKsk2-91rQ9ezkKtRXsSQ/sdriq.jpg
[12:50] <Darkside> check out how the sdr-iq does their preselecting
[12:51] <Laurenceb> are those relays?
[12:52] <Darkside> yep
[12:52] <Darkside> it clicks when you change bands
[12:52] <Laurenceb> ah
[12:52] <Laurenceb> switchable bandpass filters
[12:52] <Darkside> yup
[12:53] <Darkside> so its certainly doable
[12:53] <Darkside> for the higher frequencies it gets a bit easier
[12:53] <Darkside> as you can make a low pass filter to drop the harmonics down a bit easier
[12:54] <Darkside> or you just buy an existing filter from a mob like minicircuits
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[12:55] <Darkside> in fact i could probably do this with 2 minicircuits filters...
[12:55] <cuddykid> back from my travels
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[12:56] <cuddykid> wow Laurenceb - it's a completely different world around the industrial estates there :P didn't realise it was so close to the uni!
[12:56] <Laurenceb> did you see warhammer world?>
[12:57] <cuddykid> no lol
[12:57] <Laurenceb> ah its in there - near the railway line
[12:57] <cuddykid> I do see the "role play" society in action every wednesday afternoon on the fields near me - they scare me haha
[12:57] <Laurenceb> at least its not furrysoc
[12:58] <cuddykid> haha
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[12:58] <cuddykid> HABsoc or NUSF to rival them all :P
[12:59] <cuddykid> apparently armed police were in my accom block a few mins ago? :S
[13:00] <Laurenceb> theres a dubstep society listed
[13:00] <Laurenceb> wtf
[13:00] <cuddykid> looking for someone with a weapon apparently
[13:00] <Laurenceb> wasnt me :P
[13:00] <cuddykid> haha
[13:00] Action: Laurenceb escapes by zipwire
[13:01] <cuddykid> what floor are you on?
[13:01] <cuddykid> :O Upu/UpuWork: these 0805 are ridiculously small! I've set myself an almighty challenge here
[13:02] <UpuWork> those are big
[13:02] <UpuWork> I use 0603's
[13:02] Action: cuddykid mind boggles
[13:03] <_Hix> that's why you were made to buy 50 - you'll probably lose half of them :D
[13:03] Action: Laurenceb uses 0402
[13:04] <cuddykid> yeah, I'm very glad I got 50 :P
[13:04] <SamSilver_> I bet Laurenceb has sniffed a few up his nose
[13:04] <cuddykid> haha
[13:04] <cuddykid> they were very efficient at RS
[13:04] <cuddykid> in and out in a min
[13:08] <cuddykid> made in mexico, israel, malaysia, thailand :P
[13:09] <eroomde> i'm getting a bit annoyed with the 0805 decision on this board
[13:09] <eroomde> but the nice thing about them is that they still print component values on 0805
[13:09] <eroomde> which is good for prototyping bench work
[13:10] <Laurenceb> most 0603 have values on them
[13:10] <cuddykid> yeah, I did notice some sort of code value on them
[13:11] <fsphil> encoded in atoms
[13:11] <cuddykid> lol
[13:14] <cuddykid> none of my tracking numbers work :(
[13:14] <cuddykid> seeedstudio or wiltek
[13:18] <_Hix> RRRRRRRRRRRRRRRRR - kin couriers "Delivery attempt not successful" course - there's always someone at the delivery address
[13:19] <_Hix> what format is the wiltek one?
[13:19] <fsphil> you went all pirate there for a second
[13:19] <SpeedEvil> Be fair - delivery drivers can't be expected to actually deliver stuff all the time. Sometimes they just lose motivation, and can't get out of the van.
[13:19] <SpeedEvil> Oh.
[13:19] <SpeedEvil> On that topic, I need to contact tesco about a missing pineapple.
[13:19] <_Hix> :D
[13:20] <_Hix> to errr is human at arrrrr is pirate!
[13:20] <_Hix> https://www.dpd.com/de_en might pick up your parcel - before the fuck off back to base with it :/
[13:20] <_Hix> they...
[13:23] <cuddykid> ahh yes that works _Hix thanks!
[13:23] <cuddykid> it was picked up yesterday afternoon
[13:25] <cuddykid> _Hix: did the link work for the whole journey for your order?
[13:27] <_Hix> not really - think they use road for Eu deliveries
[13:29] <_Hix> should be with the driver tomorrow - if the driver can get out of his van
[13:30] <cuddykid> _Hix: mine?
[13:30] <_Hix> yeah reckon
[13:30] <cuddykid> hopefully :D
[13:31] <cuddykid> it says 2 to 3 days so that would be right
[13:43] <_Hix> Just went to have a pork pie for lunch at my desk and found metal swarf embedded in the party case. Mmmm nice!
[13:44] <SpeedEvil> Compensation!
[13:44] <SpeedEvil> Coincidentally, I just maile a pork pie maker.
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[13:44] <SpeedEvil> They had an error on their label, which quoted the whole pie as 15% of your RDA calories.
[13:45] <SpeedEvil> That's actually the figure for 1/4 of the pie.
[13:55] <_Hix> think mine contained 1500% RDA aluminium
[13:56] <_Hix> it's only 140g - might send it up in a payload to study the effects of 10mb on a pork and metsal based product
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[13:59] <eroomde> all: read this: http://spacecraft.ssl.umd.edu/akins_laws.html
[13:59] <eroomde> it's very good if you've not already seen it
[13:59] <eroomde> and relevent to us
[14:02] <WillDuckworth> it's missing Murphy's law
[14:02] <WillDuckworth> but good all the same :)
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[14:26] <NigeyS> woof
[14:27] <fsphil> ruff
[14:28] <NigeyS> baa
[14:28] <NigeyS> got something for u phil :P
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[14:29] <fsphil> winning lottery ticket?
[14:29] <NigeyS> not quite :p
[14:29] <NigeyS> see "other" chan ;)
[14:36] <_Hix> from the office window it looks like tomorrow's launch should be perfect weather
[14:41] <fsphil> it's always nice before a launch :)
[14:45] <NigeyS> hah yeah, it'll probably rain for the launch, or be blowing a gale :/
[14:59] <_Hix> benfits of 20:20 hindsight can never be underestimated :)
[15:03] Action: Hibby sings MATLAB! DANANANANANANANANANANANANA MATLAB! to the tune of batman
[15:04] <gonzo__> rain is ok though?
[15:04] <gonzo__> I'm working, but will see if I can get a remote ctrl station going
[15:06] <eroomde> Hibby: round these parts it was always MATLAAAAAAAAAAAB MATLAB! dernernernernerner
[15:06] <eroomde> to the tune of Stingray
[15:07] <Laurenceb> http://www.theregister.co.uk/2012/02/23/lohan_truss_update/
[15:07] <Hibby> eroomde: love it.
[15:07] <Laurenceb> ^lol @ two balloons
[15:07] <Laurenceb> no prizes for guessing what woul;d happen there
[15:08] <SpeedEvil> ...
[15:08] Action: LazyLeopard can imagine all sorts of interesting tangles...
[15:12] <Laurenceb> stingrays: wasps in a tractor beam
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[15:38] <CovBalloon> anyone interested in testing high altitude EMP generators/
[15:38] <CovBalloon> hohoho
[15:38] <joph> ask north korea
[15:39] <CovBalloon> Iran is going to get us out of recessions, conflict, cold war etc is great for the economy
[15:40] <joph> ;)
[15:43] <The-Compiler> WTF, spotted another big power supply at work... 600VDC 20A
[15:47] <Hibby> that's nothign!
[15:47] Action: Hibby is scared of some of the high power stuff in the power labs here
[15:48] <Hibby> I know that they've been testing RF from 133kV Transformers as a method of fault detection... sigificant powerflow through them.
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[16:18] <cuddykid> _Hix: how did you track your DPD package once in this country?
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[16:21] <_Hix> same link
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[16:30] <cuddykid> ahh ok
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[16:37] <_Hix> cuddykid - from the orders you seem to be putting in at the moment I assume you are planning a launch in the not too distant
[16:38] <cuddykid> _Hix: yeah, these are all orders for the custom pcb - which I hope will form the basis of many future flights
[16:39] <cuddykid> I'm aiming for a launch around easter time (early/mid April)
[16:39] <eroomde> http://i.imgur.com/vQQCm.png
[16:39] <eroomde> basically done mini tracker
[16:39] <cuddykid> Got a month off then so should be able to get something together
[16:39] <cuddykid> nice eroomde!
[16:39] <cuddykid> eroomde: is it using rfm22b?
[16:40] <eroomde> max6 and ntx2 courtesy of upu, 16bit dac to drive the ntx2, microsd card, electrically isolated uart to safely talk to the outside world, 4.5-18V input, temp sensor for temp compensation to stop the radio drifting
[16:40] <eroomde> tis 65mm top to bottom
[16:41] <cuddykid> nice :D
[16:41] <cuddykid> is this the one you were trying to route a few nights ago?
[16:42] <eroomde> yes
[16:42] <eroomde> finished the first pass last night
[16:42] <eroomde> today i've had a 2nd pass
[16:42] <cuddykid> good stuff
[16:42] <cuddykid> I like the groovy tab style things - dunno what the proper name for them is!
[16:42] <eroomde> it is basically done now
[16:43] <eroomde> well they're there in tabby form so that they can be chopped off
[16:43] <eroomde> it's 30mm wide without them
[16:43] <eroomde> for integration into very tight things
[16:43] <_Hix> ooerr
[16:43] <cuddykid> oh - this sounds good - exactly what I need for the rockoon :P
[16:44] <cuddykid> I was planning to do another separate rockoon board similar to yours (more elongated)
[16:44] <eroomde> this will be flying in a rocket in may
[16:44] <cuddykid> ahh :D
[16:44] <fsphil> 16 bit dac? isn't that overkill?
[16:44] <Dan-K2VOL> cure tracker eroomde
[16:45] <eroomde> fsphil: depends on how you define kill
[16:45] <eroomde> 0.3Hz resolution
[16:45] <eroomde> Dan-K2VOL: cure?
[16:45] <Dan-K2VOL> haha cute
[16:46] <eroomde> fsphil: for dominoEX I want accuracy of about 5hz
[16:46] <Dan-K2VOL> I've been researching UV curable adhesives all morning
[16:46] <eroomde> so 14 bit would give me 2hz(ish) accuracy
[16:46] <eroomde> so that'd do too
[16:46] <_Hix> bloody hell and here's me trying to figure out how to get an srduino uno talking to gsm and gps whilst telling a camera to do it's thang
[16:46] <eroomde> but the 14 and 16 bit dacs cost the same and you still have to send 2 bytes so it might aswell be 16
[16:46] <Laurenceb> what processor?
[16:46] <eroomde> atmega1284
[16:47] <Laurenceb> booring :P
[16:47] <eroomde> keeping it simple for v1
[16:47] <eroomde> and low power!
[16:47] <Laurenceb> :P
[16:47] <eroomde> i've designed it to be about 100mW nominal
[16:47] <eroomde> i hope...#
[16:47] <eroomde> so it should last about 100 hours on an energizer lithium ultimate PP3 batt
[16:47] <eroomde> of course it won't
[16:47] <eroomde> but hopefully you might get 3-4 days
[16:48] <Laurenceb> stm is low power too
[16:48] <eroomde> yes that's definitely true
[16:48] <Laurenceb> no more 8bit for me :D
[16:48] <eroomde> it will become an stm32f4 at some point in its life
[16:48] <eroomde> but i will iterate my way there
[16:48] <eroomde> it only has a simple job to do for the time being
[16:48] <Laurenceb> theres no need to go that hardcore :P
[16:49] <Laurenceb> seen the lpc4300?
[16:49] <eroomde> nope
[16:49] <Laurenceb> M4+MO, 2MB flash and 204Mhz
[16:50] <eroomde> christ alive
[16:50] <eroomde> what is the m0 limb for?
[16:50] <Laurenceb> in lqfp-100
[16:50] <Laurenceb> "coprocessor for data handling"
[16:50] <zyp> it was first specced to 150, then bumped to 180 around the time when M4 were announced, then 204 now
[16:50] <zyp> eh
[16:50] <zyp> s/M4/STM32F4/
[16:51] <eroomde> someone at work commented that it looks like one of those dead animal rugs
[16:51] <eroomde> like a bear
[16:51] <eroomde> http://i.imgur.com/vQQCm.png
[16:51] <cuddykid> indeed it does!
[16:52] <nigelvh> A very small and electrically conductive bear.
[16:52] <_Hix> Project Ursus
[16:53] <eroomde> it's called the hedgehog
[16:53] <eroomde> you can probably make out on the top right
[16:53] <eroomde> on the bottom side silkscreen
[16:53] <eroomde> it's meant to be small, simple, robust and able to protect itself
[16:54] <eroomde> (hence things like the completely isolated uart so nothing someone else plugs in to it can bring it down)
[16:54] <zyp> you've got lots of gnd vias in the corners, but not many on the rest of the board
[16:55] <eroomde> where it goes mad is for the gps rf side and the 434mhz Tx output
[16:55] <zyp> you might want to stitch the top and bottom layer better together, since you don't have a single solid plane
[16:55] <eroomde> the rest is less critical
[16:56] <eroomde> but yes i will be sprinking some more about once the drc is passed
[16:56] <zyp> looks nice
[16:57] <eroomde> but i often find that to pass the drc you end up having to jiggling tracks into 'free space' a bit, so i don't put the vias in until that's all sorted
[16:57] <eroomde> else i only end up deleting them
[16:58] <zyp> true, I also do the gnd vias in the end
[16:58] <griffonbot> @apexhab: Helium for upcoming launch and competition has arrived. #apexhab #ukhas http://t.co/WxxSBLhq [http://twitter.com/apexhab/status/172727000555978753]
[16:58] <zyp> just make sure to leave some room for them too
[16:59] <eroomde> willdo
[16:59] <eroomde> there's a lot of noisy bits and sensitive bits in a small space so it's important i do
[16:59] <eroomde> 10mW 434mhz radio, smps, gps
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[17:05] <eroomde> hah it passes drc
[17:05] <eroomde> well there's a thing
[17:05] <zyp> I like to set the DRC with slightly stricter settings than required, so I have something to fall back on if I get in an «almost passing DRC but no room to adjust»-situation
[17:06] <zyp> :p
[17:07] <eroomde> it is!
[17:08] <eroomde> my service is 5mil capable but i've got it set to 7 atm
[17:08] <zyp> :)
[17:08] <eroomde> splitting hairs i know
[17:08] <eroomde> but i'd rather just get it made, have a go assembling, write down anything that's wrong and give it a respin
[17:08] <zyp> nah, 2 mil is plenty
[17:09] <zyp> :p
[17:09] <eroomde> it's tight for space and i am worried
[17:09] <eroomde> the bottom side has almost no exposured pcb
[17:10] <eroomde> it's completely convered with connectors, microsd golder, ntx2, smps daughterboard, antenna tab etc
[17:10] <eroomde> so it'll be 'special' to solder up i think
[17:10] <eroomde> nothing that radio 3 and a hundred cups of tea can't manage tho
[17:12] <zyp> considered making it 4-layer?
[17:12] <zyp> with RF stuff on the board, you really want a good ground plane
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[17:18] <nigelvh> bah, dead bug the thing, wrap some tin foil around it for "rf sheilding" and it will be find.
[17:18] <eroomde> zyp: yep
[17:18] <nigelvh> fine*
[17:18] <eroomde> http://www.flickr.com/photos/cuspaceflight/4362704812/in/set-72157621846323425
[17:18] <eroomde> a previous layout of mine
[17:18] <eroomde> is 4 layer
[17:19] <eroomde> but i no longer have CU Spaceflight's account to pay for my playing
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[17:19] <eroomde> i do agree though that it's vastly easier and nicer to do 4 layer
[17:19] <eroomde> and again, as this unit iterates it may well become 4 layer
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[17:20] <eroomde> i might be able to squeeze a bit more on in the future. a cutdown channel would be the next thing on the list
[17:20] <eroomde> 4 layers might help me do that
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[17:33] Nick change: saibot_work -> kc0vsn
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[17:49] <_Hix> the link http://www.spiritcircuits.com/services/go-naked from the flickr set - is that true? Free naked boards...
[17:50] <russss> yes
[17:50] <russss> spirit are pretty good in my experience
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[18:03] <griffonbot> Received email: F1src Station "Re: [UKHAS] XABEN-21 flight announcement."
[18:06] <_Hix> Win!
[18:06] <eroomde> wossat?
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[18:18] <Dan-K2VOL1> anyone have any experience calculating microwave reflectors?
[18:22] <_Hix> ask cuddykids co-habitant in the accom block - seems to be wise in the ways of Microwave radiation [heat]
[18:22] <eroomde> unt now mit extra groundenvias: http://i.imgur.com/y39Ss.png
[18:22] <eroomde> zyp: ^
[18:24] <eroomde> Dan-K2VOL1: only in dish form
[18:24] <_Hix> l8rs - escape from work :)
[18:24] _Hix (~Hix@ left irc: Quit: Leaving
[18:24] <eroomde> have done dishes for everything from 1.3GHz to daylight (i.e. it was a mirror for using the sun to burn things)
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[18:34] <griffonbot> @jonsowman: RT @apexhab: Helium for upcoming launch and competition has arrived. #apexhab #ukhas http://t.co/WxxSBLhq [http://twitter.com/jonsowman/status/172751111869038592]
[18:48] <zyp> eroomde, looks nice
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[18:54] <Randomskk> I'm debating making this pcb I'm doing now four layer or not
[18:54] <Randomskk> it'd be kinda fun
[18:54] <Randomskk> and I think I can get it for free..
[18:54] <cuddykid> DPD's tracking is awful in comparison to UPS/fedex/dhl
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[18:55] <Randomskk> the number of people currently making a ublox6 + avr/stm + ntx2/rfm22b/adf PCB is getting crazy :P
[18:55] <Dan-K2VOL1> would be nice if someone threw ADS-B on there
[18:55] <cuddykid> mines on the way :P
[18:55] Nick change: Dan-K2VOL1 -> Dan-K2VOL
[18:56] <Dan-K2VOL> you around eroomde
[18:56] <Dan-K2VOL> cuddykid, you have a roommate who's into microwaves?
[18:56] <cuddykid> Dan-K2VOL: don't even get me started with microwaves after last night :P lol
[18:57] <cuddykid> one of the people in my block burnt popcorn in the microwave and set the fire alarm off at 5am last night
[18:57] <Dan-K2VOL> ugh
[18:58] <nigelvh> That happened to me all the time when I was in the dorms. Idiots.
[18:58] <nigelvh> They always did it on the coldest rainiest night too.
[18:59] <cuddykid> haha yeah, I've had a fair few 4/5 am fire alarms
[18:59] <eroomde> Dan-K2VOL: yes around
[18:59] <nigelvh> Now I live in my own house, and if the fire alarm goes off, it's probably my fault.
[18:59] <Dan-K2VOL> pm eroomde
[18:59] <fsphil> one of our firealarms goes off if you look at it funny
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[19:00] <nigelvh> Ours frequently goes off if you open the oven. No smoke, just heat.
[19:01] <eroomde> Randomskk: yep! but i've wanted such a flight comp for a while
[19:01] <eroomde> tiny and self contained tracker and logger
[19:01] <eroomde> with abolity to be futureproof on radio modes
[19:01] <Randomskk> totally
[19:01] <Randomskk> well, same, which is why wombat :P
[19:02] <Randomskk> but then I got bored and re-specced it...
[19:02] <eroomde> that always happens huh
[19:02] <eroomde> this one was def not allowed feature creep
[19:02] <Randomskk> apparently
[19:02] <Randomskk> going to be doing layout this evening I think
[19:02] <Randomskk> but there's a ton of rf stuff to lay out
[19:02] <eroomde> but it has the isolated uart so it can be used with other things easily enough
[19:02] <eroomde> poweranges style
[19:02] <Randomskk> yea
[19:03] <Randomskk> tbh ntx2 is pretty neat really, just a shame you can't easily tune the macro frequency
[19:03] <eroomde> to make ultra-mega-flightcomputer-zoid
[19:03] <eroomde> macro frequency?
[19:03] <Randomskk> adf7012 is okay and all but nothing like the tiny frequency deviations
[19:03] <Randomskk> it's 434.650
[19:03] <Randomskk> even with your 0.2hz shifts
[19:03] <Randomskk> the adf is anywhere 430-440mhz
[19:03] <Randomskk> but 150hz shifts
[19:03] <Randomskk> would like both
[19:03] <jonsowman> wish i could find that micrel prototype
[19:04] <eroomde> oh sorry yes
[19:04] <Randomskk> did we ever work out how much wide scale tuning you could do, jonsowman?
[19:04] <eroomde> didn't know macro was the term
[19:04] <eroomde> carrier is the word i've heard used
[19:04] <Randomskk> I don't think it's a term per se
[19:04] <Randomskk> >_> carrier would be more common
[19:04] <jonsowman> Randomskk: no, we couldn't tune the variable capacitor
[19:04] <jonsowman> in fact we still cant
[19:04] <Randomskk> jonsowman: oh haha yea
[19:04] <eroomde> but yes you're right about the inagility
[19:04] <griffonbot> Received email: "Re: [UKHAS] XABEN-21 flight announcement."
[19:04] <eroomde> however the temp sensor should let me temp compensate the radio
[19:04] <Randomskk> still, neat. I wanna use the wombat board to play with some data transmission ideas
[19:05] <Randomskk> that's cool
[19:05] <Randomskk> yea, putting a temp sensor on wombat
[19:05] <Randomskk> but not all that much else really...
[19:05] <eroomde> so i'm hoping you can get it to keep it's bandwidth in a known khz band
[19:05] <Randomskk> not sure what I'm going to use all this cpu power for exactly
[19:05] <eroomde> so fir several Tx's on the same freq radiometrix
[19:05] <Randomskk> hmmm
[19:05] <Randomskk> would be neat, but they all have to do it
[19:06] <Randomskk> ah but if you want three of those boards in one thing, say...
[19:06] <Randomskk> then that would be useful
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[19:06] <Randomskk> you know, in some odd situation where you had three of them at the same time ;P
[19:08] <Randomskk> eroomde: I'm kinda tempted to get one of those stainless steel stencils.. any thoughts? haven't really used a stencil before
[19:08] <Randomskk> what did you guys use to spread the paste?
[19:08] <eroomde> well, pcbpool are doing them free atm
[19:09] <eroomde> a trowl
[19:09] <eroomde> like a wallpaper removing palette knife thing
[19:09] <eroomde> something like that
[19:09] <Randomskk> okay
[19:09] <eroomde> pcbpool are actually not bad at the mo
[19:10] <eroomde> so 5 of those pcbs, silkscreen top and bottom, 5mil spacing and 12mil holes, 8 working days to my doorstep, is £90
[19:10] <eroomde> and a free stainless stencil
[19:10] <Randomskk> oh wow
[19:10] <Randomskk> that's really nice
[19:10] <eroomde> and they will do the convex routing
[19:10] <Randomskk> though right now I need significantly less than 8 days >_>
[19:10] <Randomskk> also we have a sponsor for the PCBs
[19:10] <Randomskk> inc ENIG
[19:10] <eroomde> http://www.pcb-pool.com/ppuk/order_productconfiguration_js.html
[19:11] <eroomde> oh nice!
[19:11] <eroomde> and enig is gorgeous
[19:11] <Randomskk> and 8-hr turnaround
[19:11] <jonsowman> and in cambridge
[19:11] <eroomde> who is that!?
[19:11] <Randomskk> they're like a 15min drive away so submit files after an all-nighter and drive to pick them up that afternoon
[19:11] <eroomde> crownhill?
[19:11] <jonsowman> cambridge circuit company
[19:11] <eroomde> oh wow
[19:11] <eroomde> score guys
[19:11] <eroomde> nice work
[19:11] <eroomde> you can make mine for me iuw :p
[19:11] <jonsowman> haha
[19:12] <Randomskk> so yea, black soldermask, gold finish, plenty of exposed copper
[19:12] <Randomskk> might put cusf logo in the stop layer
[19:13] <eroomde> the hedgehogs will eventually be black resist and gold
[19:13] <eroomde> but maybe v0.2
[19:13] <eroomde> the v0.1 bugfix
[19:13] <Randomskk> yes
[19:13] <Randomskk> I'm a bit concerned about that
[19:13] <Randomskk> this is no doubt going to have something pretty awfully wrong
[19:13] <eroomde> never worth spening too much money on a first run of something non-trivial
[19:13] <Randomskk> agreed
[19:14] <Randomskk> happily, free :D
[19:14] <eroomde> lol
[19:14] <eroomde> that's really impressive and generous of them
[19:14] <Randomskk> going to see if I can make it 4 layer
[19:14] <eroomde> i just read your 3 simultanously comment :p
[19:14] <Randomskk> well
[19:14] <griffonbot> Received email: Steve Randall "Re: [UKHAS] XABEN-21 flight announcement."
[19:15] <Randomskk> I'm tempted to route it four layers
[19:15] <eroomde> yeah i've managed 2 on this one. but as you realise, while it's possible to do 2, it's often much nicer and electrically safer to use 4
[19:15] <Randomskk> exactly
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[19:15] <eroomde> again, v0.2
[19:15] <Randomskk> plus I've never made a four layer board...
[19:15] <eroomde> i have eliminated all drc errors on this board
[19:15] <eroomde> to make a change from my usual modus operandi
[19:16] <Randomskk> kicad doesn't let me make drc errors
[19:16] <Randomskk> you can't place copper that is in violation
[19:16] <Randomskk> well I say that
[19:16] <eroomde> that's good of it
[19:16] <Randomskk> you can't violate spacing
[19:16] <Randomskk> it is kinda neat.
[19:16] <eroomde> kicad does look appleaing
[19:16] <Randomskk> though frankly I think some of the footprints I've made are going to be in violation anyway
[19:16] <Randomskk> this "super nemo" package is the worst thing
[19:16] <eroomde> what is it?
[19:17] <Randomskk> https://randomskk.net/u/supernemo.png
[19:17] <Randomskk> filter+LNA+filter
[19:17] <eroomde> wtf
[19:17] <eroomde> for what?
[19:17] <jonsowman> haha
[19:17] <Randomskk> GPS
[19:17] <jonsowman> wtf indeed
[19:17] <eroomde> that's like some kind of level 1000 tetris piece
[19:17] <MrCraig> Anyone have any experience / knowledge of converting kicad drawings through to gcode that'll run in mach3?
[19:17] <Randomskk> afraid not
[19:17] <eroomde> Randomskk: is it active then?
[19:18] <Randomskk> yea
[19:18] <Randomskk> http://randomskk.net/u/wombat.pdf top left corner
[19:18] <eroomde> or are you just mega paranoid about that 1cm between the saranel and the ublox
[19:18] <Randomskk> pretty paranoid
[19:18] <Zuph> MrCraig: Send your boards to china like everyone else! :-p
[19:18] <eroomde> it'll be complete fine i think
[19:18] <Randomskk> yea I'm pretty sure it's not required
[19:18] <eroomde> they go into big clear skies
[19:18] <Randomskk> but it both adds some dBs and also improves out of band rejection by quite a lot
[19:18] <MrCraig> Zuph, that defeats the object of having a cnc mill and also I think reduces the learning & fun
[19:19] <eroomde> the ublox's got locks when they were upside down on the bomb in our old lab
[19:19] <MrCraig> or is it pain rather than fun... hmmm
[19:19] <Randomskk> yea they're a bit amazing
[19:19] <Randomskk> this is one of the parts recommended in the ublox6 datasheet though
[19:19] <eroomde> oh i forgot batt voltage on this board
[19:19] <eroomde> hrm
[19:19] <Randomskk> batteries are friggin massive
[19:19] <eroomde> nvm. v0.2
[19:19] <Randomskk> haha indeed
[19:20] <eroomde> not much you can do with the info anyway
[19:20] <Randomskk> re-lock quicker if power got knocked out briefly
[19:20] <eroomde> i mean batt voltage monitoring
[19:20] <Randomskk> oh, right
[19:20] <Randomskk> transmit it back to ground I guess
[19:20] <Randomskk> :/
[19:20] <eroomde> the smps will keep the circuit running for a few ms if the batt bounces
[19:20] <Randomskk> yea
[19:20] <Randomskk> smps is nice
[19:21] <Randomskk> I've got the one on wombat set to stop at 2v8
[19:21] <eroomde> this doesn't look much like a teeny tiny pcb :)
[19:21] <Randomskk> so it'l run a lipo pretty far down
[19:21] <Randomskk> hmm
[19:21] <Randomskk> it won't be totally miniscule
[19:21] <Randomskk> but most of those ICs are really small and the passives are all 0402
[19:21] <Randomskk> except the large capacitors which are 0603
[19:21] <eroomde> ah masochism
[19:21] <Randomskk> essentially
[19:21] <eroomde> i might drop down from 0805 next spin too
[19:22] <Randomskk> there are like 100 passives
[19:22] <Randomskk> so 200 pads
[19:22] <eroomde> well, actually maybe v0.3
[19:22] <Randomskk> you can see why I want a stencil
[19:22] <eroomde> v0.2 should really be just a bug fix
[19:22] <Randomskk> plus another couple hundred pads for the IC
[19:22] <Randomskk> ICs*
[19:22] <eroomde> must. stay. disciplined.
[19:22] <Randomskk> annoyingly we have a stock of neo6 GPSs
[19:22] <Randomskk> which are a bit chunkier than the MAX6
[19:23] <eroomde> good should on the pyro ballast
[19:23] <eroomde> shout*
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[19:25] <Randomskk> so I looked into it
[19:26] <Randomskk> and yea
[19:26] <Randomskk> a 2 ohm 12W resistor is gigantic
[19:26] <Randomskk> like, hueg
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[19:30] <cuddykid> another damn firealarm
[19:33] <nigelvh> haha
[19:33] <nigelvh> I don't envy you
[19:33] <zyp> best firealarms are they who occur just at the moment you're going to sleep
[19:33] <BrainDamage> in the shower
[19:33] <fsphil-laptop> hmm.. that could be one way of getting out of work....
[19:33] <zyp> especially when you're going to sleep in the afternoon the day after an allnighter
[19:33] <zyp> I'm speaking of experience here
[19:33] <fsphil-laptop> lol
[19:34] <cuddykid> haha
[19:34] <cuddykid> I've had one go off in the shower before
[19:35] <zyp> on last year's global game jam, we pulled an allnighter to finish up stuff, and then went home to me to sleep
[19:35] <zyp> and I were living in student dorms at the time, so as we went to bed, some dumb fuck forgot his pizza or something
[19:36] <cuddykid> yeah, it's either people who just really can't cook (flat turns into a haze) or idiots who leave stuff on
[19:37] <Laurenceb_> that used to happen daily when i was an undergrad
[19:41] <Laurenceb_> arg
[19:41] <Laurenceb_> why does git not work over ssh
[19:42] <BrainDamage> wut? it does
[19:42] <BrainDamage> in fact, it was the first thing it ever worked with
[19:43] <Laurenceb_> i mean - i ssh into my remote machine
[19:43] <Laurenceb_> and git push
[19:43] <Laurenceb_> git push
[19:43] <Laurenceb_> Permission denied (publickey).
[19:43] <Laurenceb_> fatal: The remote end hung up unexpectedly
[19:43] <BrainDamage> mmm, what's the config there for key forwarding?
[19:43] <BrainDamage> some ssh agents forward key, some not
[19:43] <BrainDamage> depends on the config
[19:44] <BrainDamage> so the key might or not might available inside the ssh session
[19:44] <Laurenceb_> so i need to fiddle with config on my machine here?
[19:44] <BrainDamage> try ssh-add -l
[19:44] <BrainDamage> will list available keys
[19:45] <Laurenceb_> ssh-add -l
[19:45] <Laurenceb_> Could not open a connection to your authentication agent.
[19:45] <BrainDamage> http://unixwiz.net/techtips/ssh-agent-forwarding.html
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[19:46] <Laurenceb_> so i dont want forwarding?
[19:46] <Laurenceb_> as i want to use the local password on the machine im logged into?
[19:47] <Laurenceb_> *key
[19:47] <BrainDamage> in that case, you don't want forwarding
[19:47] <BrainDamage> just launch ssh-agent
[19:47] <Laurenceb_> yeah
[19:48] <BrainDamage> use eval `ssh-agent`
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[19:48] <BrainDamage> apparently whatever setup you're using, doesn't launch ssh-agent when you're logging in remotely
[19:48] <BrainDamage> that's why you cannot use your keys again
[19:49] <Laurenceb_> so i run ssh-agent on the remote machine?
[19:49] <BrainDamage> yes
[19:49] <BrainDamage> use eval tough
[19:49] <Laurenceb_> oh
[19:49] <Laurenceb_> eval 'ssh-agent' ?
[19:49] <BrainDamage> no, copypaste the type of quotes I used
[19:49] <Laurenceb_> what does eval do?
[19:50] <BrainDamage> the quote types ere important, they mean execute the stuff being quoted, and pipe into stdout
[19:50] <zyp> eval $(ssh-agent)
[19:50] <BrainDamage> while eval takes the stdin, and executes it like you'd have typed a command
[19:50] <zyp> I prefer using $() over ``
[19:50] <Laurenceb_> same permission denied error
[19:51] <BrainDamage> first try ssh-add -l
[19:51] <BrainDamage> now it should stop complaining about agent not running
[19:52] <BrainDamage> if no complains
[19:52] <Laurenceb_> The agent has no identities.
[19:52] <BrainDamage> goody
[19:52] <BrainDamage> now try ssh-add
[19:52] <BrainDamage> it should add your existing key
[19:52] <Laurenceb_> k
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[19:52] <Laurenceb_> then eval $(ssh-agent) ?
[19:52] <BrainDamage> no, eval isn't necessary anymore
[19:53] <Laurenceb_> still fail
[19:53] <BrainDamage> it was an alternative way to launch ssh-agent
[19:53] <Laurenceb_> Permission denied (publickey).
[19:53] <BrainDamage> does ssh-add -l list your key?
[19:53] <Laurenceb_> The agent has no identities.
[19:53] <Laurenceb_> is the only output
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[19:53] <BrainDamage> damn, try passing the key path
[19:53] <BrainDamage> it should be in the ~/.ssh folder
[19:54] <BrainDamage> ssh-add path/to/it
[19:54] <BrainDamage> after adding, confirm it's there using the -l option
[19:55] <BrainDamage> after that works, ssh should work properly, and so git
[19:55] <Laurenceb_> *.pub is a public key?
[19:55] <BrainDamage> yes
[19:55] <BrainDamage> you want to add the private
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[19:55] <Laurenceb_> t is recommended that your private key files are NOT accessible by others.
[19:55] <Laurenceb_> This private key will be ignored.
[19:56] <BrainDamage> chmod 700 path/to/key
[19:57] <Laurenceb_> damn i cant rember the passphrase
[19:59] <BrainDamage> basically, everytime you login into the remote machine, in order to get the key available, you should do:
[19:59] <BrainDamage> eval $(ssh-agent)
[19:59] <BrainDamage> ssh-add /path/to/key
[19:59] <BrainDamage> you could add both to an automatic execution script so you don't have to type everytime
[20:00] <Laurenceb_> ok thankjs
[20:01] Action: Laurenceb_ ried to remember password for ~4months ago
[20:01] <Laurenceb_> *tries
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[20:06] <TimZaman> hello everyone
[20:06] <Upu> Evening Tim
[20:06] <Upu> very nice board that eroomde
[20:07] <TimZaman> can anyone setup the tracker for me, Upu?
[20:07] <TimZaman> same xml as last time i guess
[20:07] <TimZaman> PD4TA
[20:07] <Upu> I can clear it for you if you want when are you launching ?
[20:07] <TimZaman> hmm
[20:07] <TimZaman> i mean, the tracker in terms of the XML data?
[20:07] <TimZaman> $$Pdata, lat, lon, etc, same as last time?
[20:07] <Upu> oh do you still have your document ?
[20:08] <TimZaman> launch window between 'now' and 1.5 week from now
[20:08] <TimZaman> ehh :) no, but maybe its still in the spacenearus system?
[20:08] <Upu> checking
[20:08] <TimZaman> thanks 1M
[20:09] <Upu> It'll be a few mins
[20:09] <TimZaman> ok thanks 1k
[20:09] <Upu> give me a ping when you're back eroomde
[20:10] <TimZaman> has there been a new dlfldigi in the last few months?
[20:11] <fsphil-laptop> still in the works
[20:11] <TimZaman> oh hi phil
[20:11] <fsphil-laptop> hullo sir.tim
[20:11] <TimZaman> any news?
[20:11] <fsphil-laptop> all quiet here, ditched a payload in the north sea a few months ago :)
[20:12] <TimZaman> 2bad
[20:12] <fsphil-laptop> you're trying the polaroid again?
[20:12] <TimZaman> yeah i have the payload lieing around for 2 months now
[20:12] <TimZaman> and the helium..
[20:12] <TimZaman> all 7m2 of it, and 2 balloons
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[20:13] <fsphil-laptop> crikey
[20:13] <fsphil-laptop> been crappy weather for a launch
[20:14] <TimZaman> weather smeather
[20:14] <fsphil-laptop> thought you might say that :p
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[20:15] <TimZaman> :-)
[20:16] <fsphil-laptop> did you ever find out about the blotches on the last photos?
[20:18] <TimZaman> blotches?
[20:18] <TimZaman> in the polaroids?
[20:18] <fsphil-laptop> yea
[20:18] <TimZaman> nop, but i did foudn out that in a error in my code
[20:18] <TimZaman> they only started taking them in the fall
[20:18] <TimZaman> that means between 26 and 24km
[20:18] <fsphil-laptop> ah
[20:18] <TimZaman> i had something like
[20:19] <TimZaman> if (imagealt>imagealt+1500) instead of 'if (ialt>imagealt+1500)
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[20:22] <fsphil-laptop> I'm surprised it worked when falling, it was probably spinning pretty fast
[20:22] <TimZaman> yeah it was fairly insane
[20:22] <TimZaman> at one point the payload was almost upside down
[20:22] <Upu> TimZaman, fsphil fixed your XML but test it before launching
[20:23] <fsphil-laptop> that's test. in bold letters
[20:23] <Upu> TEST
[20:23] <TimZaman> OK
[20:23] <fsphil-laptop> it's your most recent document, if the field formats haven't changed then you should be good to go
[20:25] <TimZaman> yep TOP
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[20:26] <TimZaman> thanks a gazillion
[20:26] <fsphil-laptop> when do you hope to fly it?
[20:27] <TimZaman> sunday
[20:27] <TimZaman> northwest wind
[20:27] <Upu> post to the mailing list Tim so we know
[20:28] <Upu> if you can give people as much notice as possible as we have French listeners now
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[20:28] <Upu> who seem quite keen
[20:29] <TimZaman> OK ill drop by here
[20:34] <Laurenceb_> how do you control stop clearance around pads in eagle?
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[20:40] <Upu> Laurenceb http://www.cadsoftusa.com/training/faq/#13
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[20:44] <Lunar_Lander> hello everyone
[20:44] <Dan-K2VOL> hi
[20:45] <Lunar_Lander> how is life?
[20:48] <nigelvh> We're living through it.
[20:49] <Lunar_Lander> yeah
[20:49] <Lunar_Lander> same here
[20:51] <nigelvh> At least until we're not.
[20:52] <Lunar_Lander> yea
[20:53] <TimZaman> Upu: im sending some stuff over, R U receiving?
[20:53] <nigelvh> What y'all been up to?
[20:53] <Upu> I'll check logs TimZaman
[20:54] <Lunar_Lander> hello TimZaman!
[20:54] <Lunar_Lander> how are you?
[20:54] <Upu> PD4TA : PD4TA,17,00:02:22,0,0,0,0,23,4241*4447
[20:55] <Lunar_Lander> congratulations for the polaroid flight TimZaman, cool that it worked out
[20:55] <Upu> can you send some data with data in it ? :)
[20:55] <TimZaman> i wish
[20:55] <TimZaman> got a timelock now
[20:55] <TimZaman> soon itll have pos
[20:55] <TimZaman> give it 10m
[20:55] <Upu> What GPS ?
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[20:57] <Upu> oh btw Tim I opened a HAB Store so you can buy uBlox 6 with breakout boards now http://ava.upuaut.net/store
[20:58] <TimZaman> Lock
[20:58] <Lunar_Lander> TimZaman: you've inspired me btw
[20:58] <Lunar_Lander> do you want to know how?
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[20:58] <Lunar_Lander> hello graham
[20:58] <Upu> on the map
[20:58] <eroomde> Upu: are the boards in now?
[20:58] <Upu> great success
[20:58] <Upu> no :/
[20:58] <TimZaman> Upu, do i get commision? i get dutch inquiries like every few weeks
[20:59] <Upu> eroomde that board you did is great got a few mins for questions ?
[20:59] <Upu> lol
[20:59] <eroomde> yep
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[20:59] <Upu> TimZaman use code UKHAS when you buy and you get 10% off prices thats your commission :)
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[20:59] <eroomde> improvement suggestion warmly welcomed too!
[20:59] <eroomde> it's a bit of a rush
[20:59] <TimZaman> cery pretty pcb
[20:59] <eroomde> but my intention was to just get it made and test it then do a v0.2 bugfix
[20:59] <Upu> eroomde seed can do those curved cuts ?
[20:59] <eroomde> dunno
[21:00] <eroomde> gold phoneix can
[21:00] <eroomde> and pcbpool can, who i'm using
[21:00] <Upu> ATMega644 ?
[21:00] <eroomde> 1284
[21:00] <TimZaman> wow sweet pricing
[21:00] <eroomde> same footprint
[21:00] <Upu> k
[21:00] <Upu> what are you using for ICSP header ?
[21:00] <eroomde> a 6 pin 1.25mm surface mount molex
[21:00] <eroomde> the icsp was just too space consuming
[21:00] <TimZaman> geez thats cheap
[21:00] <Upu> got a part code ?
[21:00] <Upu> yes
[21:00] <Upu> I know :)
[21:00] <eroomde> you see the 4 pin one on the top layer, there's a 6 pin version below
[21:00] <eroomde> molix picoblade is the brand of connecotr
[21:00] <eroomde> they're nice
[21:01] <TimZaman> Upu looks great, why dont you sell steve's stuff too?
[21:01] <eroomde> i got the con-molex from the paparazzi autopilot github
[21:01] <Upu> can I grab a copy of the brd file so I can render it ? Not stealing ideas just intested
[21:01] <eroomde> and all the usual places sell the picoblade parts - farnell, rs etc
[21:01] <eroomde> yep yep sure
[21:01] <Upu> TimZaman because Steve sells Steve's stuff :)
[21:01] <eroomde> gimme a sec
[21:01] <TimZaman> it seems the tracker works great
[21:01] <eroomde> oh no wait bollocks
[21:01] <eroomde> it's on my work machine
[21:01] <eroomde> i didn't copy it to dropbox
[21:01] <TimZaman> Upu; a little competition would be nice, Steve has a monopoly if you ask me!
[21:01] <eroomde> oh no wait i did!
[21:02] <eroomde> sorry getting confused
[21:02] <eroomde> ok board file coming up 2 mins
[21:02] <eroomde> email addy?
[21:02] <Upu> upuaut@gmail.com
[21:02] <Upu> TimZaman I'm not stepping on Steve's toes
[21:02] <eroomde> steal away tho
[21:02] <Lunar_Lander> TimZaman: you inspired me in a way that I am back on experimenting with the 808 camera that you used
[21:02] <eroomde> it's all OS
[21:02] <Lunar_Lander> without you, I wouldn't even have known it!
[21:03] <Laurenceb_> picoblade is for FFC right?
[21:03] <Upu> http://i.imgur.com/JEcRM.png thats what I came up with but yours is way neater
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[21:04] <eroomde> Upu: sent
[21:04] <Upu> cheers
[21:04] <Upu> give me a few
[21:04] <eroomde> it's actually the bottom side that is the top side
[21:04] <eroomde> perversely
[21:05] <eroomde> the bottom side has all the interface to the outside world
[21:05] <Upu> any preference on PCB colour ? Red ? :)
[21:05] <eroomde> power con, rf con, ntx2, microsd
[21:05] <eroomde> etc
[21:05] <eroomde> oh and the blinkenlights
[21:05] <Lunar_Lander> xD sparkfun ripoff!
[21:05] <Lunar_Lander> :D
[21:05] <Upu> blinken lights VERY important
[21:06] <Lunar_Lander> hi Upu btw
[21:06] <eroomde> bottom (top) side is just ICs - the atmega, temp sensor, 16bit DAC, digital isolator etc
[21:06] <Upu> hi
[21:07] <eroomde> oh shit
[21:07] <eroomde> it says there's an airwire
[21:07] <Lunar_Lander> ohhh
[21:07] <eroomde> oh it's just a stupid one
[21:07] <nigelvh> bum buuum BUM!!!!
[21:07] <Upu> odd it doesn't render correctly
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[21:07] <eroomde> in what way incorrectly?
[21:08] <Upu> well I just get an outline
[21:08] <eroomde> hmm
[21:09] <eroomde> my silkscreen is on _tsilk and _bsilk
[21:09] <eroomde> rather than *docu
[21:11] <eroomde> Upu: i just printed it out 1:1
[21:11] <eroomde> this is gonna be interesting :)
[21:14] <Upu> NTX is going under the board ?
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[21:14] <eroomde> yes
[21:15] <eroomde> well i guess there's nothing stopping it going above too
[21:15] <Upu> GPS
[21:16] <Upu> http://i.imgur.com/RoHVB.png
[21:16] <Upu> shame it doesn't render correctly
[21:16] <eroomde> ah damn
[21:16] <eroomde> that's very sexy
[21:17] <eroomde> i wonder why it's not doing it fully?
[21:17] <Upu> not sure
[21:17] <Upu> sometimes it glitches but usually comes back
[21:17] <eroomde> oh i have an idea
[21:17] <eroomde> maybe my dimension line isn't continuous
[21:17] <eroomde> so it can't form a solid profile to extrude
[21:18] <eroomde> if you see what i mean
[21:18] <Upu> Think so
[21:19] <eroomde> Upu: if i had to guess, i'd say the break would be where the top dim lines meet the antenna cutdown knob
[21:20] <eroomde> which might have been on a marginally different grid to the main dimension lines and so not quite mate
[21:20] <Upu> I'll have a look
[21:20] <Upu> you using a crystal or a ceramic resonator ?
[21:20] <eroomde> so, maybe try manually putting in another semicircle between those two?
[21:20] <eroomde> it's a crystal in a 4 pin package
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[21:21] <eroomde> i think i might have been on some perversely small grid
[21:21] <eroomde> like 0.25mm
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[21:24] <Upu> nope I removed your Layer 20 and put a square round it still broken
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[21:26] <Laurenceb_> is there a schematic symbol for a TCXO?
[21:26] <Laurenceb_> or is it just another ic?
[21:27] <Upu> hang on might have it
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[21:32] <Upu> or not
[21:34] <Upu> no idea eroomde
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[21:34] <Upu> hey daveake_
[21:34] <Upu> did you get a mail from the shop this morning ?
[21:34] Nick change: daveake_ -> daveake
[21:34] <daveake> sure did
[21:35] <Upu> good glad its working
[21:35] <daveake> :)
[21:35] <daveake> Been on site all day. Only just got home
[21:36] <eroomde> Upu: ok not to worry
[21:36] <Upu> http://i.imgur.com/DGQ0o.png
[21:36] <Upu> http://i.imgur.com/3WsFC.png
[21:36] <eroomde> not sure what it could be really but then i've not much experience with povray stuff
[21:36] <Upu> might be easier to check them with those
[21:36] <eroomde> i guess we wait for 10 days time
[21:36] <Upu> its not povray, reminds me I can still use that
[21:37] <Upu> let me check it
[21:37] <Upu> its EagleUp puts it into Google Sketchup
[21:37] <Upu> I forgot to tent the vias..
[21:38] <eroomde> yes i am NOT going to forget to tent the vias
[21:39] <eroomde> been there done that
[21:39] <eroomde> got the signal via under the QFN ground pad t-shirt
[21:39] <daveake> Do we know what time "mid morning" is for Steve's launch tomorrow? I want to know how early I need to get up to erect my pole (ooer missus)
[21:40] <Upu> http://i.imgur.com/NOv8U.png
[21:40] <Upu> he's not said
[21:40] <daveake> ok ta
[21:40] <daveake> :)
[21:41] <Upu> you've separated the ground plane by the Sarantel
[21:42] <Upu> and joined it with just one small wire
[21:42] <Upu> that is a great board
[21:43] <Upu> so why the sort of separate ground planes for the TX RF and the GPS RX ?
[21:46] <Upu> and eroomde whats U$4 ? a D to A converter ?
[21:47] <Upu> and dunno if it will appear on the finished board but you have names over pads, R2, R3, U$4 etc
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[21:51] <Upu> hmm it is a DAC :) Part pls :)
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[22:07] <eroomde> Upu: cool
[22:07] <eroomde> thanks
[22:07] <eroomde> D to A yes
[22:07] <daveake> eroomde Got your Fluke yet?
[22:08] <eroomde> Upu: ground planes: star grounding
[22:08] <eroomde> names won't appear on final board
[22:08] <eroomde> my silkscreen is _bsilk and _tsilk
[22:08] <eroomde> daveake: not yet
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[22:09] <Lunar_Lander1> strange
[22:10] <Lunar_Lander1> still anyone there?
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[22:14] <Upu> which DAC are you using eroomde ?
[22:15] <eroomde> Upu sorry for delays half on skype talking rockets
[22:15] <eroomde> it's an AD5040
[22:15] <Upu> sure no problems
[22:15] <Upu> got to be a better way of doing it than resistors
[22:15] <eroomde> oh hell yeah
[22:16] <eroomde> the dac should give in theory 0.3Hz resolution
[22:16] <eroomde> in practice blah
[22:16] <eroomde> but certainly i'd like to be able to set a freq +/- 5hz
[22:16] <eroomde> so you can have lots of payloads flying on 650 at once, all of them sticking to their alloted 1khz within the 20khx of ntx2 bandwidth
[22:17] <eroomde> i hope the temp sensor will allow temp compensation sufficient to do that
[22:17] <Upu> oh so you think you can compensate for the temp drift
[22:17] <eroomde> we have an environemntal test chamber and freq counter at work so we can get lots of freqs vs temp curves. There's be a 2D lookup table on the atmega to look out what voltage to tell the dac to produce for a given temperature and freq requirement
[22:17] <Upu> interesting
[22:18] <Upu> very interesting
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[22:20] <eroomde> you'd have to calibrate each board individually but you can automate that process
[22:20] <zyp> eroomde, you don't like having names on your boards?
[22:20] <eroomde> it does have a name on
[22:20] <zyp> or maybe just don't have room? :p
[22:20] <eroomde> silkscreen just not on the rendering
[22:20] <Upu> ignore the renderings I did them zyp
[22:21] <zyp> I was referring to 23:08:24 < eroomde> names won't appear on final board
[22:21] <eroomde> OH!
[22:21] <eroomde> no sorry
[22:21] <eroomde> the layer called tName and bName
[22:21] <eroomde> which is often used as silkscreen
[22:21] <eroomde> but i have a separate layer for silkscreen
[22:22] <eroomde> i was unclear apols
[22:22] <zyp> I use tName and tPlace for my silkscreen
[22:22] <zyp> (and bName/bPlace)
[22:22] <eroomde> it usually has redundant info on it that i don;t partoicularly want
[22:22] <eroomde> not always mind
[22:23] <Upu> you can smash the component and delete the extra text
[22:23] <zyp> http://bin.jvnv.net/f/QW7ZG.png <- I recently did this board, think it turned out nicely
[22:23] <eroomde> also lots of homemade libraries seem to follow different conventions on what to put on each layer
[22:23] <eroomde> yeah that's true
[22:23] <eroomde> but i usually just prefer to start from zero
[22:23] <eroomde> and add
[22:23] <Upu> is that a Antenova zyp ?
[22:23] <zyp> yep
[22:24] <Upu> have fun soldering it :)
[22:24] <zyp> it's going in the oven
[22:24] <zyp> so it should be fine
[22:24] <Upu> hopefully the ublox MAX6 and the chip antenna will work out about the same weight and way easier to solder
[22:25] <zyp> is it hard to solder?
[22:25] <Upu> the Antenova ?
[22:25] <zyp> I've already got the modules, they doesn't really look hard to solder
[22:25] <Upu> not sure but I think navrac has destroyed 3 ?
[22:25] <Upu> I might be wrong
[22:25] <zyp> then maybe he just sucks at soldering? :)
[22:26] <eroomde> it's easy to do
[22:26] <Upu> The plastic bit on the antenna melted or something
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[22:26] <zyp> well
[22:26] <eroomde> gps units don't like being reflowed or worked more than once or twice i've found
[22:26] <Upu> I've not see one
[22:26] <zyp> the datasheet specifies that the modules are to be pre-baked
[22:26] <eroomde> we killed about 5 venus chipsets in the name of badger2
[22:26] <Upu> but they look scary
[22:26] <zyp> eroomde, datasheet specifies three times for the antenova
[22:28] <zyp> either way, I'm expecting to get it right in the first try, I don't see a reason why I shouldn't
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[22:29] <zyp> as long as the reflow profile are within spec, nothing should melt
[22:29] <eroomde> indeed
[22:29] <eroomde> my profile technique was thus:
[22:29] <eroomde> buy argos toast oven
[22:29] <zyp> and the reason I bought a reflow oven in the first place were to be able to set a reflow profile
[22:30] <eroomde> turn it to 150 for 10 mins
[22:30] <eroomde> wack it up to 250 till the solder melts
[22:30] <eroomde> turn it back to 150 for a few mins
[22:30] <eroomde> then off
[22:30] <Upu> I think my skillet reflow is the same
[22:30] <zyp> and that's probably the problem.
[22:31] <eroomde> probs
[22:31] <eroomde> i'll be putting this board together with hot air i think
[22:31] <eroomde> i.e. by telling it how great I am
[22:31] <zyp> if you heat or cool stuff too fast, you'll get thermal stresses, and that's what kills stuff
[22:31] <zyp> :)
[22:32] <zyp> I haven't got the feel for hot air yet
[22:32] <zyp> it's kind of too localized compared to reflow, and too inaccurate compared to an iron
[22:35] <eroomde> the preheater is the best thing really
[22:35] <eroomde> brings the whole board to 120
[22:35] <eroomde> or so
[22:35] <eroomde> so the hot air on the top side only takes about 1s to melt the paste
[22:35] <SpeedEvil> eroomde: number?
[22:35] <eroomde> ?
[22:36] <SpeedEvil> argos
[22:36] <eroomde> oh can't remember
[22:36] <eroomde> this was 3 years ago we bought it
[22:36] <SpeedEvil> I bought a 'pizza oven'
[22:36] <SpeedEvil> but it has rod elements
[22:36] <SpeedEvil> So I'm partway through a DIY one.
[22:36] <SpeedEvil> With a 350W quartz 'food' element
[22:37] <SpeedEvil> IR
[22:38] <Lunar_Lander1> cool
[22:39] <SpeedEvil> Basically 350W foodlamp, fan, paint can. And a couple of servos as valves
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[22:53] <Lunar_Lander1> yea
[22:53] <Lunar_Lander1> sounds good
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[23:03] <Laurenceb_> can you do multiple pads to one pin in eagle6?
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[23:08] <griffonbot> Received email: "Re: [UKHAS] XABEN-21 flight announcement."
[23:08] <Laurenceb_> http://i.imgur.com/THp75.png
[23:08] <Laurenceb_> all parts placed
[23:10] <BrainDamage> is that the sdr gps?
[23:10] <Laurenceb_> yes
[23:10] <Laurenceb_> wtf @ se4120
[23:10] <Laurenceb_> LNA_OUT, RX_EN, VCC, MIX_IN
[23:10] <Laurenceb_> across the top
[23:10] <Laurenceb_> how the hell are you supposed to route that
[23:12] <griffonbot> Received email: Alexei Karpenko "Re: [UKHAS] XABEN-21 flight announcement."
[23:12] <Laurenceb_> guess they can be routed between the pad and the gnd pad
[23:12] <Laurenceb_> without screwing the impedance matching
[23:14] <Laurenceb_> ill add active ant support, with current monitoring
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[23:23] Nick change: daveake_ -> daveake
[23:26] <Lunar_Lander> hello daveake
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[23:33] <Randomskk> hey Laurenceb_
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[23:33] <Randomskk> I'm a bit confused about the BOOT0 pin
[23:34] <Randomskk> on my dev board, I had it labelled "bootloader" for grounded and flash for +
[23:34] <Randomskk> but the datasheet suggests I have it backwards
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[23:34] <Randomskk> but I'm sure it worked
[23:34] <Laurenceb_> erm
[23:34] <Lunar_Lander> is Upu still here?
[23:34] <Laurenceb_> yes you have it backwards
[23:34] <Laurenceb_> +ive is bootloaded
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[23:35] <Randomskk> okay thanks
[23:35] <Randomskk> >_>
[23:35] <Randomskk> that was a double position switch so it didn't matter much
[23:35] <Randomskk> this time around I'm doing it with a momentary push so
[23:35] <Randomskk> matters a bit more :P
[23:36] <daveake> goo
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[23:37] <daveake> oops
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[23:46] <Laurenceb_> looks like dongle will end up 15x40mm
[23:46] <Laurenceb_> hopefully ill be ready to get seeedstudio order off by monday next week
[23:47] <Laurenceb_> so ~3weeks to boards ready i hope
[23:47] <SpeedEvil> Neat.
[23:49] <Randomskk> cool
[23:49] <Randomskk> I can't wait to start playing with the f4 on this thing
[23:50] <NigeyS> hrm i want my Pi !
[23:51] <Laurenceb_> id laugh if i get this ready before Pi
[23:51] <NigeyS> :o
[23:52] <Darkside> lol
[23:52] <SpeedEvil> I would not be astounded.
[23:53] <Laurenceb_> we should hack into raspberry pi and steal the gerbers
[23:53] <Laurenceb_> then order from seeedstudio
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[23:53] <zyp> yeah, because seed does six-layer now
[23:54] <Darkside> 6-layer?
[23:54] <Darkside> whaaat?
[23:54] <zyp> rpi is 6-layer iirc
[23:54] <Darkside> seeed doesnt do 6 layer
[23:54] <Darkside> i know itead fors 4
[23:54] <Darkside> does 4*
[23:54] <zyp> no, that was a joke.
[23:54] <Darkside> oh
[23:54] <Darkside> :P
[23:54] <SpeedEvil> I wish you could get RPi chip kits
[23:55] <zyp> I wish people would stop talking out of their ass
[23:56] <Laurenceb_> pcbtrain could do it
[23:56] <zyp> yeah, because then you'll get working pcbs, right? :p
[23:56] <Laurenceb_> but itd probably short on internal layers
[23:56] <Darkside> at what cost
[23:56] <Laurenceb_> like all my latest orders from pcbtrain :(
[23:58] <Randomskk> don't they e-test?
[23:58] <Laurenceb_> apparently they lie
[23:58] <Darkside> hah
[23:58] <Laurenceb_> to be fair they offered my a refund
[23:58] <Laurenceb_> but i still waste loads of time on piss poor pcbs
[23:58] <Laurenceb_> *wasted
[23:58] <SpeedEvil> zyp: I am interested in attempting to solder a pi-class device.
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[23:59] <SpeedEvil> zyp: I would not expect to get it working first time, but I'd like to try.
[23:59] <Lunar_Lander> do we have Upu still here?
[23:59] <zyp> SpeedEvil, how?
[23:59] <SpeedEvil> How what?
[23:59] <Laurenceb_> annddddd
[23:59] <zyp> how are you planning to do it?
[23:59] <Laurenceb_> the RPi fanboy has arrived
[00:00] --- Fri Feb 24 2012