highaltitude.log.20080511

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[01:41] <Laurenceb> furan: around?
[03:40] <Laurenceb> http://www.youtube.com/watch?v=nZIfIzNW9xM
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[09:18] <jcoxon> morning edmoore
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[09:37] <jcoxon> edmoore, RocketBoy, my first attempt at a UKHAS logo
[09:38] Action: Laurenceb awaits with excitement
[09:38] <jcoxon> oh hey Laurenceb
[09:38] <jcoxon> didn't see you there
[09:38] <Laurenceb> :D
[09:38] <jcoxon> http://www.flickr.com/photos/jcoxon77/2482774164/
[09:39] <Laurenceb> hmmm
[09:39] <Laurenceb> well good effort
[09:39] <Laurenceb> but what happened to the previous one?
[09:39] <jcoxon> oh its still there
[09:39] <Laurenceb> I was hoping we could just change the font
[09:39] <jcoxon> i just thought i'd have a go at another one
[09:39] <Laurenceb> cool
[09:39] <jcoxon> as Ed an I are working on caps :-p
[09:40] <jcoxon> and*
[09:40] <Laurenceb> I dont know, just a little bit simple
[09:40] <Laurenceb> primary colours, no use of shading
[09:41] <Laurenceb> and maybe a bit simpler
[09:41] <Laurenceb> I dont know, dont want it to look *too* corporate
[09:41] <jcoxon> oh Laurenceb the old balloon logo is staying
[09:41] <jcoxon> don't worry
[09:41] <jcoxon> but for our stash... :-p
[09:42] <Laurenceb> can you like me it?
[09:42] <Laurenceb> lnk*
[09:42] <Laurenceb> link*
[09:42] <Laurenceb> arg
[09:43] <jcoxon> ?
[09:43] <jcoxon> link what?
[09:43] <Laurenceb> sorry
[09:43] <Laurenceb> I'll look in my email nvm
[09:44] <jcoxon> for the old image
[09:44] <jcoxon> oh right
[09:45] <Laurenceb> http://www.flickr.com/photos/jcoxon77/2423695232/
[09:45] <Laurenceb> what font is "UK High altitude society" in
[09:46] <Laurenceb> I'm uselss with fonts... its too blocky
[09:46] <Laurenceb> basically IMO
[09:46] <jcoxon> no idea
[09:46] <jcoxon> i never made it
[09:46] <Laurenceb> well actually just "High Altitude society"
[09:46] <Laurenceb> sure I know
[09:46] <jcoxon> but its easy to fix
[09:46] <jcoxon> just need to choose a font
[09:48] <Laurenceb> maybe just change the "high altitude"
[09:48] <Laurenceb> the "society" looks more serious perhaps....
[09:49] <Laurenceb> that font has an air of seriousness to it, but doing everything in it looks clumsy
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[10:13] <Laurenceb> this is hilarious http://www.youtube.com/watch?v=nZIfIzNW9xM
[10:17] <Hiena> Ehem... I made a similar interface for one of my client. A big red emergency button, if he press it, it's dials out to my mobile, and says "We have a computer problem...", also i added a sign, "Each emergency calls charge 20USD." Since i gave him, the his calls dropped.
[10:18] <Laurenceb> haha
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[10:25] <Hiena> One of my friend made a social/art experiment. It's a big red buttom on a stand. It was placed at some public place and filmed, how frequently pushed.
[10:28] <Hiena> The funny thing, how the most people expects to happening somethin.
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[10:47] <edmoore> hi jcoxon
[10:47] <edmoore> sorry for not replying, was having a mahusive breakfast
[10:47] <edmoore> and now surveying the damage from yesterday's revision break mega-picnic
[10:49] <jcoxon> haha
[10:49] <jcoxon> no worries
[10:49] <jcoxon> sounds fun
[10:49] <edmoore> got a lot of cleaning to do this morning!
[10:50] <edmoore> still, nice to scrub up the room
[10:50] <jcoxon> :-)
[10:50] <jcoxon> made a few prototype cap logos
[10:50] <edmoore> Laurenceb: have you washed the sparkfun order yet?
[10:51] <edmoore> not washed 9sorry, cleaning on the brain). have you made the order yet?
[10:51] <Laurenceb> yes
[10:51] <edmoore> jcoxon: am perusing
[10:51] <edmoore> Laurenceb: ok coolio
[10:51] <edmoore> let us know how much and I'll get a cheque sent
[10:51] <jcoxon> the second one is better methinks
[10:51] <jcoxon> but lots still to do
[10:52] <edmoore> I do like the mission patch style one
[10:52] <edmoore> but as laurence says, maybe with more primary colours and bolder elements.
[10:52] <Laurenceb> *less
[10:52] <Laurenceb> :P
[10:52] <edmoore> ok, missinterpreted :)
[10:52] <jcoxon> i uploaded a more updated one
[10:52] <jcoxon> removed the shading
[10:53] <Laurenceb> what I meant was sell of a mix of primary colour
[10:53] <edmoore> ok got it
[10:53] <Laurenceb> s/sell/less
[10:53] <jcoxon> added stars :-p
[10:53] <edmoore> h'ok, I'd make the outer band thicker, and have United Kingdom on the top
[10:54] <edmoore> and high altitue society on the bottom
[10:54] <jcoxon> okay,
[10:54] <edmoore> maybe make the earth blue and white?
[10:54] <edmoore> the glider looks awesome :)
[10:54] <edmoore> like a space ship
[10:55] <jcoxon> i'll have a play
[10:55] <jcoxon> getting the text to do clever things is quite difficult
[10:55] <edmoore> this is why god invented adobe illustrator
[10:56] <edmoore> right, I should probably get back on with the cleanup operation
[10:56] <jcoxon> yup
[10:56] <edmoore> i'll be around all day though, so do leave messages
[10:56] <jcoxon> i'll bbl
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[10:59] <fnoble> edmoore: hello
[11:07] <edmoore> hi fnoble
[11:07] <fnoble> want to meet for a chat on this fine day?
[11:07] <edmoore> fo sho
[11:07] <edmoore> will have to be the eve though
[11:07] <edmoore> I need to build up some library credit!
[11:07] <edmoore> granchester?
[11:08] <fnoble> mmm.... would be nice
[11:08] <fnoble> yeah lets do that
[11:08] <edmoore> cool
[11:08] <edmoore> will bring paper
[11:09] <edmoore> various plans 'n' that
[11:09] <fnoble> ok, want to meet at queens?
[11:09] <edmoore> yep, sounds good
[11:09] <fnoble> can leave your bike here and walk down
[11:09] <edmoore> time?
[11:09] <fnoble> whenever really
[11:09] <edmoore> 7ish suits me (i.e. after food)
[11:09] <edmoore> first pint at 7.30
[11:09] <fnoble> ok cool, see you then then
[11:09] <edmoore> awesome
[11:12] <edmoore> thingamibob was free wifi dousn't it?
[11:14] <fnoble> yeah
[11:14] <fnoble> the robert brooke did
[11:14] <edmoore> that's the one
[11:14] <edmoore> http://www.goldphoenixpcb.biz/special_price.php
[11:15] <edmoore> if we ever have to order multiple things, this looks quite good
[11:15] <edmoore> say, 2 flight computers, 2 comms boards, 2 whatever boards
[11:15] <edmoore> and we can get red soldermask, which would make my day
[11:16] <edmoore> and they route the outsides
[11:16] <edmoore> rather than shag them to bits with a shear
[11:24] <fnoble> ok, awesome
[11:25] <fnoble> advanced circuits gave me an email saying i can have one order at half price
[11:25] <edmoore> remind me why that was?
[11:25] <edmoore> also, if we can find a 4-layer supplier, that might make life a lot easier
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[11:32] <mc-> hi all
[11:32] <edmoore> hi mc-
[11:33] <mc-> was reading logs, don't think olimex does 4 layer
[11:33] <mc-> can you route tracks on 2 layer, then add on a gnd plane as a separate PCB
[11:33] <edmoore> no they don't
[11:34] <edmoore> well you'd loose plated through holes
[11:34] <edmoore> and a hole bunch of other stuff
[11:34] <edmoore> you'd have to have strange and arcanes to want to do that to make it worth it
[11:34] <edmoore> over just finding one of the 10000 pcb suppliers who will do 4 layer
[11:35] <edmoore> strange and arcane reasons*
[11:35] <mc-> pcbcart does 4 layers
[11:35] <mc-> I've just worked out cordics, they are pretty fast.
[11:36] <mc-> can calculate phase to 1 degree with about 8 adds/subtract
[11:37] <edmoore> oooh nice
[11:37] <fnoble> edmoore: because i registered with them for a quote but never ordered :)
[11:37] <edmoore> lol, usefully timed!
[11:37] <edmoore> right, just need to go and swap washing over to dryer
[11:37] <edmoore> brb
[11:50] <edmoore> bk
[11:51] <mc-> I think the problem with 4 layers is routing it, I prefer to route with 2 layers, and use 3rd layer for gnd
[11:53] <edmoore> well that is what you do with them as a rule
[11:54] <edmoore> 2 outer signal layers, two inner power/gnd planes
[11:54] <mc-> yep
[11:54] <edmoore> it's such a joy with PTH parts too
[11:55] <edmoore> that you can just wire up all the gnd and vdd with no effort at all
[11:55] <edmoore> cos they're already there
[11:56] <mc-> when's the next balloon launch, guess it's after your exams?
[11:56] <edmoore> not necessarily
[11:56] <edmoore> as the third years have finished theirs
[11:56] <edmoore> so when ferg and I get the flight computer sorted, it'll be basically soon after
[11:56] <fnoble> well we need to get a badger ready first
[11:56] <edmoore> see above :p
[11:57] <mc-> mine's ready to go
[11:57] <edmoore> when are you sending it up?
[11:57] <Laurenceb> hello people
[11:57] <mc-> just finishing off a GPS pwr saving mode
[11:57] <mc-> don't know
[11:58] <edmoore> how big is it?
[11:59] <mc-> 30x35mm
[11:59] <edmoore> lol, tiny then
[12:00] <mc-> with GPS ant, 45x45,,
[12:00] <Laurenceb> mc-: cordics?
[12:00] <mc-> on wikipedia
[12:01] <mc-> everywhere I've looked has terrible explanations, when it's quite simple
[12:02] <mc-> it's about 10 lines of code
[12:04] <Laurenceb> but needs a table?
[12:13] <Laurenceb> looks very fast, but I've only had to use trig for navigation, which isnt really time critical
[12:13] <Laurenceb> would be very good for an IMU
[12:13] <Laurenceb> I guess thats the point :P
[12:13] <mc-> yes, but only 8 values in the table, and can store the difference from the previous value
[12:14] <mc-> you can use ints rather than floats as well
[12:30] <Laurenceb> freaky
[12:30] <Laurenceb> oh ok... I sort of get it
[12:32] <mc-> it's good for comms as well, can calculate phase and magnitude without a sqrt
[12:32] <Laurenceb> ah
[12:33] <mc-> you'll need it for Galileo
[12:34] <Laurenceb> :P
[12:36] <Laurenceb> argg stupid network
[12:36] <Laurenceb> keeps disconnecting
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[14:40] <jcoxon> edmoore, did you take any pictures of the fhalp-3 launch?
[14:47] <edmoore> jcoxon: let me av a looook
[14:47] <edmoore> none of the actual launch, but i think i got some of the prep
[14:49] <jcoxon> ooooo cool, thats what i meant
[14:49] <edmoore> jcoxon: only two
[14:49] <edmoore> not that great
[14:50] <jcoxon> hmmm i think there are some on my other memory card
[14:50] <jcoxon> which is in london
[14:51] <jcoxon> was looking for a picture of the aviators, cap and safety goggles
[14:52] <edmoore> lol
[14:54] <jcoxon> bbl
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[15:15] <edmoore> fnoble: are you about?
[15:15] <fnoble> kinda
[15:16] <edmoore> cool
[15:16] <edmoore> I'm slightly drowning under work atm, and have 2 supervision tomorrow. Is there any chance we could delay pub until after monday, say when we have the next cusf meeting?
[15:17] <edmoore> I know it's gay, but granchester is probs not something I can afford to do this eve
[15:26] <fnoble> yeah thats fine
[15:26] <edmoore> what are you up to?
[15:26] <fnoble> let me know if you do finish early, we could just meet in churchill
[15:26] <edmoore> yeah
[15:26] <edmoore> well earlier in the day is always better for me anyway
[15:27] <edmoore> i tend to mentally shut down at about 10
[15:28] <fnoble> what you mean earlier today?
[15:28] <edmoore> depends how work goes now I guess
[15:28] <edmoore> it'll probably keep my going for the rest of the eve though, tbh
[15:28] <fnoble> ok, give me a ring then if you do finish
[15:29] <fnoble> but dont worry
[15:30] <Kornholijo> :o
[15:30] <edmoore> ?
[15:31] <Kornholijo> yay, terminal on iphone works in landscape mode :-)))
[15:31] <edmoore> jailbroken?
[15:31] <Kornholijo> yep
[15:31] <Kornholijo> still 112
[15:31] <Kornholijo> unlocked too
[15:31] <Kornholijo> im on irssi thru servers ssh
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[15:32] <Kornholijo> hello :)
[15:32] <edmoore> hi jcoxon
[15:32] <jcoxon> hey
[15:33] Nick change: Kornholijo -> kornholijo
[15:33] <jcoxon> how difficult would it be to implement packet radio on 434 10mW?
[15:33] <kornholijo> 10mW??
[15:34] <jcoxon> yup
[15:34] <jcoxon> kornholijo, thats the power we work with in the UK :-)
[15:34] <edmoore> probably not that difficult
[15:34] <edmoore> depends on data rate
[15:34] <kornholijo> :o
[15:34] <jcoxon> hmmmm
[15:34] <edmoore> it's just a protocol - if we can do 300 baud rtty we can do 300 baud packet
[15:34] <jcoxon> i saw a usb webcam for ?9.99 in wh smiths
[15:35] <jcoxon> its logitech and quite dainty
[15:35] <kornholijo> nice
[15:35] <jcoxon> so if we had a packet radio transmitter (even on off the shelf from radiometrix)
[15:35] <edmoore> it would be really good to find the cheapest simple thing that stick 640 x 480 video onto a memory card
[15:36] <jcoxon> and the used our radios + software packet modem on the ground
[15:37] <kornholijo> why not get a slug(nslu2)? if you mod it u can get 10 usb ports( from the 2, theres 5, low an hi speed)
[15:37] <jcoxon> kornholijo, oh i've got a gumstix with usb host
[15:37] <kornholijo> ah
[15:37] <jcoxon> but yeah slugs are nice
[15:37] <jcoxon> a little big
[15:38] <kornholijo> not w.outthe box
[15:38] <kornholijo> it has 2 serial ports too :p (1 r/w, 1 r)
[15:39] <jcoxon> :-)
[15:39] <jcoxon> phatmonkey was originally working towards a slug based flight computer
[15:39] <edmoore> what is a slug?
[15:40] <kornholijo> linksys nslu2
[15:40] <kornholijo> network str
[15:40] <jcoxon> runs linux
[15:40] <kornholijo> network storage over usb2, uber hackable
[15:40] <edmoore> cool
[15:41] <jcoxon> edmoore, hence the 'high altitude slug glider'
[15:41] <kornholijo> you can put a linux distro onto usb hdd and it will run it
[15:41] <edmoore> i will still always love my ARMs though
[15:41] <kornholijo> its a arm
[15:41] <kornholijo> no...
[15:41] <kornholijo> intel smthing, runs on 266mhz
[15:42] <jcoxon> edmoore, you just like the power to do what you want
[15:42] <kornholijo> yep
[15:42] <jcoxon> even if it requires a little bit of work ;-)
[15:42] <kornholijo> :)
[15:42] <edmoore> I just like not using too much power to do what I want, actually :p
[15:42] Action: jcoxon is too lazy
[15:42] <jcoxon> haha
[15:42] <kornholijo> it eats ~8 watts i think :/
[15:42] <jcoxon> different type of power
[15:43] <kornholijo> it eats ~8 watts i think :/
[15:43] <edmoore> eeeeeeeeeek
[15:43] <edmoore> oh well
[15:43] <edmoore> right, must. do. work.
[15:43] <edmoore> bbl
[15:43] <kornholijo> 500ma on 5v
[15:44] <kornholijo> each usb thing eats about 100 ma lol
[15:46] Last message repeated 1 time(s).
[15:46] <kornholijo> wtf
[15:46] <kornholijo> jcoxon: did he get anywhere with the slug?
[15:47] <jcoxon> he never launched
[15:47] <jcoxon> but certainly built some stuff
[15:47] <kornholijo> why not :o
[15:47] <jcoxon> i think the power consumption was a problem
[15:47] <kornholijo> aw
[15:47] <jcoxon> oh he pops in occasionally
[15:48] <jcoxon> he runs the wiki and mailing list
[15:48] <kornholijo> :)
[15:49] <kornholijo> how much a 6ah sla weigh?
[15:49] <kornholijo> woould*
[15:50] <jcoxon> not sure
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[16:00] <kornholijo> hmm
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[00:00] --- Mon May 12 2008