highaltitude.log.20130323

[00:00] <Spoz> ugh I hope we have enough helium left to overfill the balloon as much as we'll have to
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[04:00] <arko> eroomde: contact me
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[05:41] <arko> anyone want to double check my checklist?
[05:41] <arko> i looked at the ukhas one
[05:41] <arko> added stuff
[05:57] <arko> https://docs.google.com/file/d/0B7SePbOLVRg9MnhFWXNRTWx2SjQ/edit?usp=sharing
[05:57] <arko> https://docs.google.com/file/d/0B7SePbOLVRg9T2JlMWNKNVBYV0U/edit?usp=sharing
[05:57] <arko> if anyone wants to look over it
[06:01] <craag> Wow quite prepared
[06:02] <craag> The only other thing I can think of is a spare pair of socks!
[06:03] <arko> :)
[06:04] <arko> im not losing this hab :P
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[07:25] <jcoxon> ping fsphil
[07:48] <arko> yo jcoxon
[07:52] <arko> jcoxon: im launching my hab on March 30th, 2013 18:00UTC
[07:52] <arko> can we get it on spacenear.us?
[07:52] <arko> with aprs and all
[07:54] <jarod> http://www.youtube.com/watch?v=MW7AbEwxmTw - B747 VERY LATE GO AROUND!!!! air bridge cargo
[07:55] <arko> brb landing, oh wai
[07:55] <arko> t
[07:55] <arko> http://www.youtube.com/watch?v=mMvLuUJFHYk
[07:55] <eroomde> arko: i contact you
[07:56] <arko> on snap
[07:56] <arko> pm
[07:57] <jcoxon> arko, sure
[07:57] <jarod> arko awesome vid :)
[07:58] <arko> jcoxon: lets talk tomorrow when im sober :)
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[08:00] <arko> jarod: crosswinds are a pain
[08:00] <jarod> http://www.youtube.com/watch?v=la-hSjKP2TU :O
[08:00] <arko> i tried once, my flight instructor took over because i sucked
[08:01] <arko> :(
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[08:05] <arko> man, big bear lake is a windy place to land
[08:07] <arko> ok, time to sleep
[08:07] <arko> good night!
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[08:22] <jarod> http://www.youtube.com/watch?v=sktcVQhqD3Q BEST COMMENTS EVER!
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[09:15] #highaltitude: mode change '+o jonsowman' by ChanServ!ChanServ@services.
[09:16] Topic changed on #highaltitude by jonsowman!jonsowman@kryten.hexoc.com: Welcome to #highaltitude - discuss anything to do with high altitude projects (balloons, gliders, etc) www.ukhas.org.uk
[09:16] #highaltitude: mode change '-o jonsowman' by ChanServ!ChanServ@services.
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[10:10] <GMT> i guess that the weather has cancelled any plans for a launch today?
[10:10] <jonsowman> yep
[10:10] <jonsowman> horizonqmgs: LAUNCH CANCELLED: Due to significant snowfall across the entire flight path and already strengthening winds a launch will not be possible.
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[10:12] <GMT> okay thanks; I checked NOTAMs during the week ... 8 possible launches between the 19th and 9th April.
[10:13] <jonsowman> I think they're having issues with running into exam time
[10:13] <jonsowman> this is the second cancellation iirc
[10:14] <GMT> long time since I was at skool, I thought exams were may and June!
[10:14] <jonsowman> some of the A level ones tend to be earlier
[10:15] <jonsowman> in any case, it's getting towards the revision period before exams
[10:15] <GMT> oh well, I will keep an eye on the Mailing List for details of launches.
[10:15] <jonsowman> yep
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[10:43] <Hix> Horizon 2 postponed?
[10:44] <jonsowman> yes
[10:44] <Hix> ahh, bit too warm and dry to release?
[10:44] <jonsowman> yeah the weather's just too good
[10:45] <jonsowman> wouldn't be a challenge
[10:45] <Hix> fair enough, wait for some horrible shite stuff to roll in better...
[10:45] <jonsowman> probably for the best
[10:45] <Hix> heh
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[10:57] <grahams> hi anyone. Hoping to pick someone's brains.
[10:57] <jonsowman> fire away
[10:58] <grahams> Total HAB novice, but a friend and are going to give it a go
[10:58] <grahams> Going to use a Pi as the control unit
[10:58] <Darkside> not the best idea
[10:58] <jonsowman> everyone on here will tell you not to do that
[10:58] <Darkside> an arduino is a better idea
[10:58] <jonsowman> and for good reason
[10:58] <grahams> Why not?
[10:59] <Darkside> power hungry, not suited to real-time modulation
[10:59] <jonsowman> grahams: can I ask you to read this http://ukhas.org.uk/general:beginners_guide_to_high_altitude_ballooning
[10:59] <grahams> Yep, I've already read it.
[10:59] <jonsowman> good good
[10:59] <Hix> blimey ntx2 dont like coming off boards do they?
[10:59] <grahams> And Dave Akermans Pi-based project, and a load of other really useful material
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[11:00] <jonsowman> grahams: Dave (daveake on here) will advise you not to use a pi, I guarantee
[11:00] <Darkside> he always flies another radio tracker along with the pi
[11:00] <Darkside> the pi is never the primary tracking payload
[11:00] <grahams> Ah, OK. Maybe we'll do the same. We've both got Arduinos kicking around too
[11:01] <jonsowman> if you want to have the pi onboard, have it as a secondary tracker
[11:01] <Darkside> i strongly recommend it
[11:01] <jonsowman> have an arduino/ntx2 type thing as your primary
[11:01] <jonsowman> you'll thank us for it
[11:01] <grahams> OK.
[11:01] <jonsowman> Dave is on here often if you want to have a chat with him
[11:02] <Darkside> so you were planning on going with the radio method? grahams ?
[11:02] <grahams> The spur for my question today was simply that I was about to buy an NTX2 from HAB Supplies and I thought I'd heed the admonition to check in here before committing the order. So I am
[11:03] <Darkside> buy the NTX2
[11:03] <grahams> Darkside: so yes to your question
[11:03] <Darkside> buy a GPS unit too
[11:03] <Darkside> but wire it up ton an arduino, not a pi
[11:03] <jonsowman> grahams: Upu or UpuWork is your man for HAB Supplies
[11:03] <Darkside> to an arduino*
[11:03] <jonsowman> speak to him before placing your order :)
[11:04] Action: jonsowman deletes that from the logs
[11:04] <grahams> OK. Thanks. Any specific advice re the NTX2, or is it just a warning to newbies to check in with the community
[11:04] <Darkside> grahams: the NTX2 is a good starting radi
[11:04] <Darkside> and will do fine
[11:04] <Darkside> where are you launching from?
[11:05] <jonsowman> grahams: nothing specific, it's the LPD433 band which is ISM and license exempt
[11:05] <Upu> hi grahams
[11:05] <Upu> sorry I was afk
[11:05] <grahams> Darkside: I'm a Cambridgeshire resident and Churchill alumni, and the wiki suggested that was a good place to launch from
[11:05] <grahams> Hi Upu
[11:05] <Upu> give me a few mins just sorting a customers phone system out and I'll be right with you
[11:06] <Hix> hot air safe to remove ntx?
[11:06] <jonsowman> should be fine Hix
[11:06] <jonsowman> try not to heat the unit itself more than required
[11:06] <jonsowman> they're surprisingly hardy
[11:07] <jonsowman> grahams: I'm at Cambridge Uni, and part of CUSF (www.cusf.co.uk)
[11:07] <jonsowman> you'd be very welcome to use our launch site at Churchill
[11:07] <grahams> jonsowman: excellent, I checked out your website and looked at your fascinating projects.
[11:07] <grahams> jonsowman; thanks. I suspect we're a couple of months away yet :)
[11:07] <jonsowman> when you have a launch date in mind, just send us an email at contact@cusf.co.uk and we'll sort something out :)
[11:08] <jonsowman> yes of course, no rush
[11:08] <Upu> right hi there
[11:08] <grahams> Upu: hi there
[11:08] <fsphil> morning alls
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[11:09] <grahams> Upu: I just thought I'd check in here before I bought an NTX2 your (?) shop tells me in bright red text to do so before I take my first HAB project steps
[11:09] <Upu> indeed see your private message
[11:10] <fsphil> I'm glad to hear people are reading bright red text. On the website I work on, they often don't :)
[11:10] <jonsowman> fsphil: make it redder or bigger
[11:10] <jonsowman> or both
[11:10] <jonsowman> :)
[11:10] <Upu> well I can't be more subtle :)
[11:10] <jonsowman> haha
[11:10] <Upu> I don't mind people talking about the code UKHAS
[11:10] <Upu> on here
[11:11] <Upu> if they've made it here thats the reward
[11:11] <jonsowman> Upu: I've been removing it from the logs since they're public
[11:11] <Upu> the other one needs to stay off the logs but again no issues with people giving it out
[11:11] <Upu> that one is ok
[11:11] <jonsowman> ok cool
[11:11] <Upu> its the other one that can't be in the logs
[11:11] <Upu> there is no coupon code
[11:11] Action: Upu makes mystical hand movement
[11:12] <jonsowman> I don't know the other one actually
[11:12] <cuddykid> neither, I forget to use the UKHAS one anyway :P
[11:13] <fsphil> hopefully not too many people know the 4FREE code
[11:13] <fsphil> ah crap
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[11:13] <cuddykid> lol
[11:13] <Upu> heh
[11:13] <jonsowman> dream on
[11:13] <cuddykid> WHOLESHOPFORFREE
[11:13] <Upu> I love you all but not that much
[11:13] <jonsowman> haha
[11:14] <Upu> right afk relearning GCSE maths
[11:14] <jonsowman> ejoy
[11:14] <jonsowman> maybe I should relearn gcse spelling
[11:14] <cuddykid> only bit I remember is the frustum of a cone.. always seemed to come up iirc
[11:14] <Upu> I'm not even joking I have a bright pink compass with a pencil in it
[11:14] <jonsowman> :DS
[11:14] <jonsowman> oh god, I can't type
[11:15] <jonsowman> my excuse is that it's morning on a weekend and I'm awake, this is unusual and unsettling
[11:15] <fsphil> I've not looked outside yet. It'll either be raining, or snowing
[11:16] <jonsowman> surrey is quite snowy at the mo
[11:16] <jonsowman> not really settling though
[11:16] <Upu> check the precision on that
[11:16] <Upu> http://imgur.com/fzWvJaj
[11:16] <jonsowman> that is wonderful
[11:16] <cuddykid> lol
[11:16] <jonsowman> I must get one for exam term
[11:16] <fsphil> rain. aww
[11:16] <cuddykid> how come you're doing GCSE maths Upu?!
[11:17] <cuddykid> just for fun to see how fast you can do a paper lol
[11:17] <Upu> nah trying to work out how to position 24 LED's round a circle in Eagle evenly
[11:17] <cuddykid> oh haha
[11:17] <fsphil> I knew it!
[11:17] <Upu> I blame arko
[11:17] <Upu> µTron :)
[11:18] <jonsowman> eagle could do with a Polar Coordinates setting
[11:18] <fsphil> µfo
[11:18] <jonsowman> routing would be a nightmare in the centre though
[11:18] <jonsowman> :\
[11:19] <Hix> 15deg centres on pcd
[11:19] <Hix> this NtX2 really doesn't want to leave the board. Using fingers on module as heat detection
[11:20] <Hix> not sure fingerprint scanner on thinkpad will know me anymore
[11:20] <jonsowman> Upu: http://forums.adafruit.com/viewtopic.php?f=8&t=10176
[11:20] <jonsowman> the post by westfw
[11:20] <jonsowman> no maths required
[11:21] <Upu> well shucks let me try that thanks
[11:21] <Hiena> Grrrr... 20 min ETA for the guests, the cream still warm for the cake dressing. I know it. Wish i brought home some liquid nitrogen...
[11:23] <Hix> Upu, gimme a min, got some pics that may be your saviour
[11:25] <Hix> Upu - http://i.imgur.com/qve3wAK.jpg
[11:26] <Hix> and http://i.imgur.com/VDBxyeL.jpg
[11:28] <Upu> interesting
[11:28] <Upu> the polar coordinates doesn't seem to want to play
[11:28] <jonsowman> ah ok, worth a try
[11:30] <Hix> can you import dwg into eagle?
[11:30] <Upu> might be working
[11:30] <Hix> or dxf i meant
[11:30] <Upu> its like everything else Eagle you have to stand on you head and spin round 6 times before it works
[11:31] <jonsowman> hehe
[11:32] <Upu> does work
[11:32] <Upu> you have to actually move the part first then type it
[11:33] <jonsowman> aoh I see
[11:33] <jonsowman> *oh
[11:33] <jonsowman> fair enough I suppose
[11:33] <Hix> introducing the Manfrotto [massive] helping hand
[11:33] <Hix> http://i.imgur.com/DOQyk6I.jpg
[11:34] <jonsowman> you sure that's robust enough for that immensely heavy pcb?
[11:37] <Hix> I'm planning on bolting it to a surface table wit 15 M14 bolts, worry not jonsowman
[11:38] <jonsowman> good good
[11:38] <Hix> not silly industrial accidents here
[11:38] <Hix> apart from 2 pins that came off the ntx2 instead of the board
[11:39] <jonsowman> oh yes, that does happen
[11:39] <jonsowman> luckily you didn't lose an arm
[11:39] <Hix> but thats not really an issue as it'll be wired
[11:39] <jonsowman> I did horrific things to an ntx2 once
[11:40] <jonsowman> http://hexoc.com/u/ntx2-1.jpg
[11:40] <Hix> oh, no danger to the arm, I used a 15 ton hydraulic puller to separate them
[11:40] <jonsowman> poor thing
[11:40] <Hix> christ, you've mde it prolapse
[11:40] <jonsowman> lol
[11:42] <Hix> now to try the sma - thermic lance please
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[11:48] <Upu> cheers jonsowman
[11:48] <Upu> http://i.imgur.com/8BME7Ni.png
[11:48] <jonsowman> nice!
[11:48] <jonsowman> pink compass can go back in the drawer for now
[11:48] <jonsowman> :D
[11:49] <Upu> indeed
[11:49] <Upu> it was the wifes btw :)
[11:49] <fsphil> yea yea
[11:49] <jonsowman> lol, sure
[11:49] <Upu> haha
[11:50] <Hix> whats the board then Upu?
[11:51] <Upu> no idea tbh :)
[11:51] <Upu> just playing
[11:51] <Hix> btw the Atten 858D+ is a magical piece of kit. £42 delivered in 3 days from China WIN!!!
[11:52] <Geoff-G8DHE_> Ah the one that kills ? http://www.eevblog.com/forum/chat/deadly-wiring-fault-atten-858d-hot-air-rework-station/
[11:53] <Hix> thinhk that's been sorted out now
[11:53] <fsphil> the postman must have been using Di-tutetamine brohohibe
[11:53] <Hix> I looked a lot after seeing that and didn't really see that much about it.
[11:54] <Hix> I just plugged it into an RCD and tapped it first :)
[11:56] <Hix> caramel yeast and glucose eh fsphil
[11:57] <fsphil> explains why a lot of chinese are quite small
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[11:59] <number10> `you could turn it into a chase car direction finder Upu - input from fldigi and a GPS led shows direction of payload
[12:00] <Upu> yep :)
[12:00] <fsphil> a tron clock
[12:01] <fsphil> two more led drivers and you could have full colour
[12:04] <Hix> is there an ideal way of bedding in solder tips?
[12:04] <Hix> the 0.2mm deson't seem to tin that well
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[12:06] <fsphil> might need cleaned
[12:06] <Hix> its new
[12:09] <fsphil> yea but there could be something coating it
[12:09] <Hix> hmm, some superfine wetdry?
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[12:10] <Geoff-G8DHE_> Brilliant stuff http://cpc.farnell.com/multicore-solder/ttc-lf/cleaner-tip-ttc-lead-free-15g/dp/SD01622?Ntt=solder+tip+cleaner
[12:11] <Hix> cheers geoff-G8DHE
[12:12] <fsphil> I like the brass sponge thing, http://cpc.farnell.com/pro-s-kit/sh-1025/tip-cleaner/dp/SD01015
[12:13] <Geoff-G8DHE_> Nice thing is it Tins it at the same time, I have mine stuck to the soldering iron rest clamp, its lasted years.
[12:13] <fsphil> I'll have to give them a try sometime
[12:14] <fsphil> Upu: 48 output, http://uk.farnell.com/linear-technology/lt8500euhh-pbf/ic-led-driver-pwm-gen-56qfn/dp/2033979
[12:14] <Hix> This looks like a neat alternative to helping hands
[12:14] <Hix> http://goo.gl/7L6Z7
[12:15] <fsphil> those helping hands things are awful
[12:15] <fsphil> that one looks better
[12:16] <mfa298> that does look useful
[12:17] <Hix> price is very good too. I've used the company before and they are very good
[12:17] <Hix> their tweezers are excellent fro the price too
[12:17] <Hix> ohh typing gods please visit me
[12:22] <Hix> geoff-G8DHE is that tip cleaner ok for leaded use too?
[12:23] <number10> yes - i use it
[12:24] <Hix> ok
[12:24] <number10> well something similar
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[12:33] <zyp> I've heard those tip cleaners adds more wear to the tips
[12:34] <zyp> the reason being that they dissolves the plating on the tip
[12:35] <chrisstubbs> Tippy is great if your tip is already destroyed
[12:36] <number10> it possible as it contains acid
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[12:45] <Geoff-G8DHE_> Yup they did a ordinary one years back but its such a small amount it doesn't cause a problem that I have noticed.
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[12:48] <zyp> personally I also prefer the brass sponges
[12:48] <jonsowman> same
[12:50] <Geoff-G8DHE_> As to corroision it passes the MoD test specified http://www.farnell.com/datasheets/318862.pdf
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[13:10] <Upu> nasty to solder fsphil :)
[13:11] <fsphil> indeed
[13:12] <Upu> 8" dog vs 4 foot snow drift
[13:12] <Upu> http://i.imgur.com/RMkhvV8.jpg
[13:13] <Upu> 8" tall
[13:13] <fsphil> my mutt would get lost
[13:15] <Upu> he made it to the top
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[13:20] <_ed> Hi all, so after conversation the other day with some great product advice, ive now recieved my ardino uno, my NTX2 and my ublox max-6.
[13:21] <_ed> can anyone give me some advice on where to go next as far as learning the equipment
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[13:32] <lz1dev> http://us1.na.apcdn.com/full/98306.jpg
[13:32] <lz1dev> :D
[13:39] <cuddykid> _ed: http://ukhas.org.uk/guides:linkingarduinotontx2
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[13:43] <Hix> ublox really is an arse to solder cleanly, tqfp much easier
[13:44] <eroomde> STENCIL AND OVEN
[13:44] <eroomde> ahem
[13:44] <eroomde> but it really is the One True Way for painless smd
[13:44] <jonsowman> + pick & place
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[13:47] <eroomde> well, that would be nice
[13:47] <eroomde> but probably more setup time than it takes to do up to about 10 instances of the same design
[13:47] <_ed> thanks for that cuddykid i have been looking at doing this but i haven get got all of the parts needed. i was also a little confused at to what all the components are i have the parts stated on the tutorial, but what are the yellow components on the picture. Sorry for the basic questions but im very new to this
[13:48] <eroomde> _ed: in the top left of the board with lots of holes in (breadboard) those are just wires
[13:48] <cuddykid> _ed: no probs, you've come to the right place for help :) the yellow bits are just bits of wire
[13:49] <cuddykid> _ed: if you've never played about with arduino before, I would try and get an LED blinking before starting the tutorial above
[13:49] <griffonbot> Received email: A. Coghlan "Re: [UKHAS] Re: Launch Announcement - Horizon 2 - 23rd March -
[13:49] <cuddykid> http://www.arduino.cc/en/Tutorial/BlinkingLED
[13:49] <eroomde> breadboard is a way of prototyping with 'through-hole' electronic components. you can put together circuits on the breadboard and tes the circuit works before you commit to a more permentant, soldered design
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[13:50] <eroomde> 'through hole' means electronic components which have long vertical legs which are designed to slot through holes drilled in a circuit board
[13:51] <eroomde> they legs also tend to fit in breadboard. the alternative is 'surface mount' where the components sit just on the top layer of the circuit and don;t have legs.
[13:51] <eroomde> http://en.wikipedia.org/wiki/Through-hole_technology
[13:51] <eroomde> http://en.wikipedia.org/wiki/Surface-mount_technology
[13:52] <eroomde> we tend to use surface mount components when designing our own circuit boards, but through-hole is good for prototyping
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[13:54] <eroomde> _ed: but i echo the other people's advice that if this is new to you (perfectly allowed!) then try some basic arduino tutorials
[13:54] <eroomde> especially ones which introduce breadboard
[13:54] <eroomde> eg http://www.ladyada.net/learn/arduino/lesson3.html
[13:55] <eroomde> infact that whole tutorial is probably a very good start
[13:55] <eroomde> http://www.ladyada.net/learn/arduino/index.html
[13:55] <_ed> Thanks for that, eroomde so the yellow bits in numbers 22, 21 ,20 on the breadboard are just wires?? funnily enough im currently watching a jeremy blum tutorial
[13:55] <Elwell> re stencil -- do any of the pcb manufacturers offer a stencil service at the same time? or do people like the laser cutting services accept eagle files?
[13:55] <_ed> i will also look at the links you have just sent
[13:56] <Elwell> for smt solder paste
[13:56] <eroomde> Elwell: yes
[13:56] <eroomde> we use pcb-pool prototypes service often and that comes with a free stencil
[13:56] <Elwell> ah nice
[13:56] <eroomde> however mitch who runs hackvana will do you a stencil for about $25
[13:57] <eroomde> longer lead time but overall price proabbly cheaper than pcb-pool
[13:57] <eroomde> basically mitch when you can wait a 2weeks-month, pcb-pool if you need it sooner
[13:57] <eroomde> mitch is the user hackvana on the #hackvana irc channel
[13:58] <eroomde> _ed: yep they're just wire
[13:58] <eroomde> they're solid core wire, which is stiff so can be inserted into the breadboard holes
[13:58] <Elwell> 'S OK - no need for one just now, just wondered if it was a trival 'tick this box if you also want a stencil added to your order' thing
[13:58] <eroomde> usually wire is multicore, i.e. the same overall crosssection but made up of a bundle of smaller thinner wires
[13:58] <eroomde> that makes it more flexible
[13:58] <eroomde> Elwell: it is in the case of pcb-pool
[13:59] <eroomde> you can send them eagle files too
[14:00] <eroomde> _ed: multicore is the more normal and better in general because of the flexibility, it's just no use for stuff like breadboard so you can buy single core for that
[14:00] <_ed> so what is the need for them within this tutorial?? sorry again for the basics
[14:00] <eroomde> it lets you connect components to each other on the breadboard
[14:00] <eroomde> on that tutorial i linked to they explain what breadboard is and how it works
[14:01] <eroomde> basically you have to shove the ends of the wire into sockets, a bit like a headphone jack into a socket
[14:01] <eroomde> just much smaller
[14:01] <eroomde> but multicore wire just splays out - it's not stiff enough to be pished into the sockets
[14:01] <eroomde> but single core wire, beign a single core of thicker wire, is stiff enough to be slotted in
[14:03] <eroomde> you just buy a big reel of signle core wire on a spool, then you'll want to buy some decent wire cutters and wire strippers, to remove a length (maybe 5mm-1cm) of insulation from the end, to leave the naked metal core that you can insert into the slots
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[14:09] <_ed> sorry again, just going through this ttorial that you linked to, thanks for that. I understand the jumper wires i was struggling with the yellow wires that are placed next to the resistors. Are they jumper wires too?
[14:10] <eroomde> no need to spologise!
[14:11] <eroomde> you're trying to learn electronics and programming all at once, it's a mountain to climb
[14:11] <eroomde> they are jumper wires yes
[14:14] <_ed> brilliant thanks for that. i realise im taking a lot on, im just really eager to get a booloon flying but want to know what im doing before i first fly it! thanks for your help
[14:15] <eroomde> no problem. we are your shirpas, metaphotically speaking
[14:15] <eroomde> sherpas*
[14:16] <mfa298> _ed: understanding whats happening is always a good thing
[14:19] <_ed> ha ha i like that! all i want is a sucessful flight as i sure everyone does, but want to know whats happening and why. I originally thought i would be flying a balloon this summer, i know think it maybe next summer or longer!!!!
[14:22] <eroomde> worth the effort though, I promise
[14:22] <eroomde> keep asking lots of questions
[14:31] <jarod> http://www.youtube.com/watch?v=1Lk0SBlqnys - AIRBUS A380-841 LUFTHANSA - low pass, landing, take-off RWY24 at Prague Ruzyne LKPR <-- ahha awesome aircraft/tower communication
[14:34] <eroomde> jarod: I can;t helping thinking there might be a better venue for your plane spotting chat than an irc channel about high altitude balloons
[14:38] <cuddykid> eroomde: perhaps another opportunity to put your superpowers to work :P twice in a week!
[14:38] <eroomde> no way
[14:39] <eroomde> that's for exceptional circumstances and only after people have been asked very nicely, and besides merely being OT is nothing like as bad as being offensive or bullying
[14:39] <cuddykid> true
[14:40] <eroomde> this was more a suggestion as the links rarely lead to conversation, which to me impoies that there's not much interest in it here
[14:40] <eroomde> implies*
[14:40] <number10> alternative way to solder ublox if you are making one tracker is to mount it upside-down and solder wires on - not pretty but is ok http://i.imgur.com/n7nf8CO.jpg
[14:41] <eroomde> that;s a v neat job
[14:42] <number10> I really need to get narrow guage solder
[14:42] <mfa298> eroomde: I think he's posting the same in a few channels, there's something very similar in ##hamradio
[14:42] <eroomde> ah right
[14:43] <eroomde> well, jarod, if that's the case can we ask you nicely to refrain from doing it too often as that kind of multi-channel broadcasting is a bit frowned upon from an IRC netiquette point of view
[14:43] <eroomde> unless it's exceptional, like you have a balloon going out of range and you're making an appeal for listeners in foreign countries, or whatever
[14:43] <eroomde> youtube links don;t qualify
[14:43] <Hix> so - tracker #2 built up. lock attained, no magic smoke
[14:43] <chrisstubbs> Hix congrats!
[14:44] <eroomde> that's worthy of a celebratory glass of wine
[14:44] <Hix> now i need to attatch NTX2 and go for a big bowl of awesomeness
[14:44] <chrisstubbs> Today must be a good day for HAB. Mine has sprung to life and is transmistting fine too
[14:44] <chrisstubbs> Hix so you soldered the uBlox ok this time?
[14:44] <Spoz> and I have resurrected my tracker for launch 2!
[14:44] <Hix> i've developed a method for anti tombstoning of smd caps too
[14:45] <Hix> tin pads and hot air caps resistors leds etc, works like a dream
[14:45] <Hix> Yup ublox on chrisstubbs its a bas%^d to do cleanly though
[14:46] <chrisstubbs> Not looking forward to doing it without a solder mask then
[14:46] <Hix> ewwww christ
[14:46] Action: Hix makes sign of the cross in chrisstubbs direction
[14:46] <Geoff-G8DHE> <lz1dev> Now that I like :-)
[14:47] <chrisstubbs> Lol, number10 yes that is very tidy!
[14:47] <chrisstubbs> did the wires not cause any antenna issues?
[14:48] <number10> the chip antenna is just below - is fine out in the open
[14:48] <Hix> chrisstubbs: you can use a short length of wire as ant, think 46.7mm
[14:48] <Hix> temp measure
[14:48] <number10> my pico boards are worse as the PIC is also smd mounted upside-down
[14:49] <Hix> works like a bosss
[14:50] <lz1dev> Geoff-G8DHE: mm?
[14:50] <Geoff-G8DHE> The parking image you posted earlier just come back in and saw it
[14:51] <lz1dev> oh:)
[14:52] <Hix> I started out soldering my 2.4GHz stuff for my wildlife cams and 4 hours later I'm conkers deep in HAB stuff again...
[14:53] <number10> Upu: Mrs10 like picture of charlie in the snow
[14:53] <Hiena> Hix: Do a HAB wildlife cam, with 2.4GHz downstream.
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[14:54] <Hix> heh
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[14:56] <eroomde> idea:
[14:56] <eroomde> go to a birds of prey sancturey
[14:57] <eroomde> affiex wireless camera to the birds, bbc natural history unit stylee
[14:57] <eroomde> affix a raw steak to the bottom of a hab
[14:57] <eroomde> release hab, release birds, get awsome launch footage
[14:59] <_ed> now there's an idea eroomde! just to let you know i have leds blinking on the arduino unit, very small step but exciting!
[15:01] <cuddykid> good stuff _ed
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[15:01] <mfa298> _ed: well done, if you understand how that bit of code works your part way to being able to send rtty with the ntx
[15:01] <eroomde> a blinked led is the 'hello words' of microcontroller electronics
[15:01] <eroomde> it's all downhill from there
[15:01] <eroomde> world*
[15:01] <eroomde> sorry i can;t type well
[15:01] <eroomde> can't
[15:01] <eroomde> i keep missing the ' and hitting ;
[15:02] <eroomde> i think my fingers have learnt this mistake now
[15:02] <eroomde> i must unlearn it
[15:02] <_ed> ha ha, thats the feeling i get!!!! im the same!
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[15:12] <cuddykid> time for 'hello universe'
[15:13] <Hix> the only downside of this tracker making thing is that I'm going to have to get the USBTinyISP out in a minute, what a p.o.s that is.
[15:13] <cuddykid> I'm not a fan of my usbtiny chinese copy
[15:14] <cuddykid> randomly decides to work whenever it feels like it
[15:14] <Hix> the adafruit one is utter shite
[15:14] <Hix> same as yours
[15:14] <cuddykid> yep
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[15:16] <Upu> heh nps number10
[15:17] <Upu> just dug wifes car out
[15:17] <Upu> having a rest now
[15:18] <cuddykid> want to fly (and probably destroy in the process) my hexacopter, silly weather
[15:18] <Upu> have you fixed it ?
[15:19] <cuddykid> yup
[15:19] <Upu> which one are you making ?
[15:19] <cuddykid> found out that I had wires in wrong order so instead of throttling right motors when dipping down to right it was throttling left and therefore flipping
[15:19] <cuddykid> arducopter hexa
[15:19] <cuddykid> had a very brief flight on thurs - very stable
[15:20] <cuddykid> Upu: http://www.youtube.com/watch?v=Z5pZ94cbC8g
[15:20] <Upu> vertical video syndrome :)
[15:21] <cuddykid> yeah :(
[15:21] <Hix> that vid not vertical is is cuddykid :D
[15:21] <Hix> ah, pipped
[15:21] <cuddykid> lol
[15:21] <eroomde> cuddykid: i told you about this last time
[15:21] <eroomde> it is NOT COOL
[15:21] <cuddykid> eroomde: wasn't me filming this time :P
[15:21] <eroomde> STOP DOING IT
[15:21] <cuddykid> ha
[15:21] <Upu> so six motors at 32 each ?
[15:22] <cuddykid> I know, I hate it too
[15:22] <eroomde> crash the quad into anyone who is
[15:22] <eroomde> seriously
[15:22] <eroomde> end them
[15:22] <cuddykid> haha
[15:22] <cuddykid> Upu: 6 x escs + motors
[15:22] <cuddykid> that's the most expensive bit along with flight controller (ardupilot)
[15:23] <Upu> whats the controller ?
[15:23] <cuddykid> Upu: as in RC controller?
[15:23] <Upu> yep
[15:23] <cuddykid> Turnigy 9x
[15:23] <cuddykid> about £50 from china
[15:23] <eroomde> turnigy is amazing
[15:24] <cuddykid> 9 channel
[15:24] <eroomde> so cheap
[15:24] <cuddykid> yep
[15:24] <Upu> that is cheap
[15:24] <eroomde> comapred to my futaba 9ch thing i had to get when into helicopters
[15:25] <Upu> so are yuo just buying all the bits separately or did you buy the kit ?
[15:26] <cuddykid> Upu: bought most of it separately
[15:26] <Upu> £300 of motors and controllers on there ?
[15:26] <Hix> my ntx2 is numming a crap tune ;)
[15:27] <cuddykid> Upu: about £200
[15:27] <Upu> looks awesome I want one
[15:27] <cuddykid> can't wait to try some autonomous waypoint flights out
[15:28] <Upu> got ablog on it ?
[15:28] <cuddykid> no
[15:28] <Upu> they go quite high :)
[15:28] <Upu> just watching another video
[15:28] <cuddykid> when I test out various hab bits on it I'll do a write up on my hab blog
[15:29] <cuddykid> yeah, there are lots of stories of people losing them after they lose sight and they fly off into the distance lol
[15:29] <Upu> what happens if it goes out of range of the controller ?
[15:29] <cuddykid> will be sticking the hab tracker on it when I attempt those flights incase I do lose sight
[15:30] <Hix> APM has return to nase upu
[15:30] <cuddykid> Upu: it can be programmed to return to a pre-determined spot and hover there
[15:30] <Upu> ok cool
[15:30] <mattbrejza> cant you just wire a rfm22b to the arduipilot?
[15:30] <cuddykid> could do
[15:30] <mattbrejza> not sure how hard it is to modify that thing
[15:30] <chrisstubbs> just incase the ardupilot code isnt complex enough ;)
[15:30] <cuddykid> can run python scripts
[15:31] <mattbrejza> you just need to get a 50hz interrupt
[15:31] <mattbrejza> and a bit of spare ram
[15:32] <Geoff-G8DHE> When are you going to give this ago ? http://mashable.com/2013/03/22/drone-claw-eagle/
[15:33] <cuddykid> it's on the list - not that advanced, but some sort of grabbing device
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[15:35] <cuddykid> and get some fpv equipment, then it's the perfect tree recovery device :)
[15:35] <chrisstubbs> How much has it cost to get it up and running cuddykid? if you dont mind me asking?
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[15:37] <cuddykid> quite a bit - I've had some help from a few companies (batt free (£50 usually) from overlander, and £50 off ardupilot) but still around the £450 mark
[15:38] <cuddykid> but then, a lot of 'already made' hexacopters go for over £1000
[15:39] <cuddykid> ~£200 for motors + escs, ~£100 for ardupilot, ~£50 for RC system, ~£100 frame and other bits
[15:41] <_ed> So my first hurdle. Ive tried downloading the arduino software and after instaling, when i try and opne it up it comes up with the folllowing error: 'Could not find main class: processing.app.Base. Program will close????
[15:41] <chrisstubbs> yeah ESC's are dear but i had no idea the ardupilot was that much
[15:43] <eroomde> £200 for 6x brushless motors and escs seems very good to me!
[15:43] <cuddykid> http://www.unmannedtechshop.co.uk/rc-gear/bl-motor-esc/hexacopter-motor-esc-combo.html
[15:43] <eroomde> _ed: when you googled that error what did you find?
[15:46] <_ed> ha i didnt i will now though, i went to the trouble shooting page on Arduino and didnt find anything
[15:46] <eroomde> google > irc
[15:46] <eroomde> more chance of finding someone who's seen it before
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[15:50] <Randomskk> hi marsballoon
[15:50] <marsballoon> hi all
[15:50] <Upu> afternoon
[15:50] <marsballoon> got a bit of a ballooning emergency here if you are up for a challenge
[15:50] <Upu> lol
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[15:50] <Upu> shoot
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[15:51] <marsballoon> we launched two high altitude balloons yesturday from frome with 140 student experiments on board
[15:51] <marsballoon> we recovered one not far from the predicted landing site
[15:51] <marsballoon> but the other is missing
[15:51] <cuddykid> did it have radio tracker onboard?
[15:51] <Upu> what were you using to track it ?
[15:51] <marsballoon> it had an 868.3MHz XRF radio on board
[15:52] <marsballoon> the area is around banbury and we have on Ham who thinks he can hear it
[15:52] <Upu> last know location and altitude
[15:52] <marsballoon> *one
[15:52] <Upu> also what telemetry were you using format etc ?
[15:53] <marsballoon> it is a custom set of comma separated values
[15:53] <marsballoon> I can give you the format: starts with @D
[15:54] <Randomskk> what predictor did you use to get the predicted landing spot?
[15:54] <Upu> and the last know locationa nd altitude ?
[15:54] <marsballoon> we used the CUSF habhub one
[15:55] <marsballoon> The XRF was set to 38400bps over the air data rate FSK
[15:56] <marsballoon> predicted landing site was around bicester
[15:56] <Randomskk> how much data did you manage form it during flight?
[15:56] <Randomskk> from*
[15:56] <eroomde> oh i am right next to bicester
[15:56] <marsballoon> the balloon we recovered was in fenny compton
[15:56] <eroomde> this all passed me by
[15:56] <Randomskk> eroomde: it wasn't on the list or anything
[15:57] <marsballoon> someone thinks they heard the signal just south of Aylesbury
[15:57] <Randomskk> think we mentioned it here briefly though
[15:57] <marsballoon> no we are pretty new to this, didn't realise there was this much support to be had!
[15:57] <Randomskk> marsballoon: just curious as 38400bps is pretty high, I'd be surprised if you got much data while it was at altitude?
[15:57] <marsballoon> just ran into Dave Akerman at the bristol maker faire and he said get on here so here we are
[15:58] <Upu> yeah
[15:58] <marsballoon> we wernt expecting to get data at laitutde, it was for finiding it when it landed
[15:58] <Upu> we would have probably suggested something a little more sedate like 50 baud
[15:58] <marsballoon> *altitude
[15:58] <Upu> but finding it is going to be hard
[15:58] <Upu> did it have contact details on ?
[15:58] <Randomskk> 868 is annoyingly out of what most people have radios for
[15:59] <marsballoon> yep! Plan A was to use the on board phone to text us the GPS location but that failed or is not in a signal area
[15:59] <eroomde> low snr for you right now but what was the flight for? just for fun?
[15:59] <marsballoon> yes it had contact details
[15:59] <Randomskk> eroomde: http://twitter.com/marsballoon
[15:59] <marsballoon> it has school experiments; we were testing things for Mars
[16:00] <eroomde> cool
[16:00] <eroomde> what specifically were you testing for mars?
[16:00] <marsballoon> oh lots of difefrent things; food, cosmic ray detectors, rubber, etc
[16:01] <Geoff-G8DHE> How long are the batteries on the tracker expected to last ?
[16:01] <marsballoon> the recovered balloon did reach our target environemnt of -50 degrees and 10mBar pressure; the rough conditions of Mars's surface
[16:01] <eroomde> nice
[16:02] <eroomde> once, during my tenure running CUSF, we testing some parachute for mars edl
[16:02] <eroomde> subscle models anyway
[16:02] <marsballoon> good question Geoff, we didn't life test the final configuration but it is possible they will have lasted this long
[16:02] <eroomde> to test the opening characteristics in mars-like conditions
[16:02] <marsballoon> nice
[16:02] <eroomde> as a little reserach project for ESA. where little != as-little-asI-wanted
[16:03] <Geoff-G8DHE> Do you have access to any small beams (yagi's) to use for direction finding on 868MHz, thats what is going to be needed ?
[16:04] <marsballoon> yes, we were waving them about in the general area yesturday (not near aylesbury) but we had to call off the search and return to bristol
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[16:04] <Lunar_Lander> hello
[16:05] <marsballoon> hi lunar
[16:06] <Geoff-G8DHE> That is what is going to stump most people at short notice, otherwise its going to be working on signal strength alone, which if its burst data rather than a carrier is VERY diffcult to track :-(
[16:06] <marsballoon> it is a data burst repeating every 4s. I said it was a challenge!
[16:07] <Upu> really all I can suggest is good luck someone finding it and next time come and have a chat before you launch and we'll give you some pointers on making a tracker that links into the distributed tracking network
[16:07] <Lunar_Lander> is marsballoon new?
[16:07] <Geoff-G8DHE> Ouch your right!
[16:08] <marsballoon> point taken Upu!
[16:09] <Upu> was the box pink ?
[16:09] <Lunar_Lander> XD
[16:09] <marsballoon> marsballoon is trying to find a balloon lost in oxfordshire.
[16:09] <eroomde> marsballoon: are you going to have another stab at looking for it?
[16:10] <marsballoon> no its a pink hula hoop with two foam boxes at antipodes
[16:10] <Geoff-G8DHE> Picture of payload http://bit.ly/Yl9459
[16:10] <Upu> thats all that matters
[16:10] <Upu> some pink :)
[16:10] <marsballoon> lol
[16:10] <Upu> christ
[16:10] <Upu> well if someone doesn't see that and goes "hmm that looks out of place I'll take a look" I'd be surprised
[16:11] <marsballoon> true, its not combine harvester season yet is it?
[16:11] <eroomde> not for a few months
[16:11] <marsballoon> gdgd
[16:11] <Geoff-G8DHE> Plenty of Snow to cover it over though
[16:11] <Upu> did you say how long the batteriies last ?
[16:11] <marsballoon> yes that is an issue
[16:12] <marsballoon> have contacted some of the local farmers to have a look
[16:12] <eroomde> are you going to have another look at it marsballoon?
[16:12] <Geoff-G8DHE> Can you not get back into the area - quickly - with the beams you have to try to locate it ?
[16:12] <Upu> do the usual , speak to a reporter on a local rag
[16:13] <marsballoon> realistically they won't last another 4 hours so unless anyone has any kit ready to point that is porbably a no go
[16:13] <eroomde> i know of a specifically decent hill between bicester and aylesbury that has a decent chance of hearing it if it's still Txing
[16:13] <eroomde> hmm, i'd offer but i'm in sussex this weekend. but the office is halfway between bicester and aylesbury just off the a41
[16:13] <eroomde> and we have a lot of ham equipment there
[16:14] <marsballoon> we are planning on going up for another look but we are trying to get as much data as possible first
[16:15] <chrisstubbs> I guess horizon 2 was cancelled due to the weather?
[16:15] <marsballoon> we did get a signal in mid-flight which suggested it was following roughly the same flight plan as the other balloon we recovered so I am 90% sure it is in the area
[16:17] <Hix> anyone offer any advice as to what could be the cause of this mullarkey? http://goo.gl/TzSm3
[16:17] <Hix> 8MHZ 328 supposed to be 50 baud
[16:17] <Hix> NTX2 running off 5v
[16:17] <Hix> 328 @ 3v3
[16:18] <chrisstubbs> Hix oh dear
[16:18] <Hix> heh
[16:19] <chrisstubbs> Fuses?
[16:19] <Hix> in 328?
[16:19] <chrisstubbs> is it using the right crystal?
[16:19] <chrisstubbs> yes
[16:19] <Hix> 8MHz
[16:19] <Hix> thatd flag at program upload no?
[16:20] <chrisstubbs> If they were seriously wrong maybe. but you can tell it to use a crystal its not expecting
[16:20] <marsballoon> thanks for the eroomde but by monday it will definately be dead!
[16:20] <chrisstubbs> i think you need someone more knowledgeable than me to help with fuses though. i have little to no idea :(
[16:21] <Geoff-G8DHE> Dimensions for beams on 868MHz http://bit.ly/Ylbfpn
[16:21] <Hix> it's effectively a pro mega 8mhz so should be cock on
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[16:25] <Geoff-G8DHE> <marsballoon> Do you have a plot of the last prediction available so people know the rough area ?
[16:26] <chrisstubbs> Hix: whats the timing like on the serial?
[16:26] <Hix> ?
[16:26] <chrisstubbs> if i was in your position i would upload the blink sketch and check if the delays in the code match real life
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[16:27] <chrisstubbs> just an idea, if the RTTY timing is out would the serial timing be out?
[16:27] <marsballoon> I am about to post a pic of the actual flight path of the balloon we recovered. The lost one was launched about 30 mins earlier and was about 200g lighter
[16:28] <Hix> This calls for a cigarette!!!
[16:28] <Hix> worked for apollo
[16:28] <Geoff-G8DHE> That would help
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[16:30] <_ed> how very strange eroomde, after uninstalling and re-installing serveral times its now decided to work even though ive done nothing different! i guess this is what i should expect to be the norm?
[16:30] <Geoff-G8DHE> The XRF transmitter was on Max power 10mW was it ?
[16:31] <torb> <typing for Marsballoon> yes
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[16:32] <Geoff-G8DHE> Trouble will be at ground level even 1Km range is going to be asking a lot of it I expect!
[16:32] <torb> settings for the xrf were defaults, apart from the rate change to 38400. We did use 1200 initially but apparently the deviation was altered to make it compatible with previous xrf so less range at 1200
[16:33] <marsballoon> flight path of the balloon we recovered: http://twitpic.com/cdrhzc
[16:33] <torb> yes we only managed a few hundred metres using a +9dBi yagi and a funcubedongle in initial trials.
[16:33] <marsballoon> we expect the one we lost flew a little further east
[16:34] <marsballoon> *we think
[16:34] <Hix> right 1 second blikenlight comes out at 6 second blinkenlight, any clues anyone?
[16:34] <Hix> geesed 328?
[16:34] <Hix> crystal?
[16:35] <Upu> Hix what are the fuses set too ?
[16:35] <Hix> used pro mini 3v3 at 8MHz
[16:35] <chrisstubbs> Hix prepare to be confused
[16:35] <Upu> what are they actually set too though ? Read them back
[16:35] <Hix> sec upu
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[16:38] <Geoff-G8DHE> To be honest getting Press/Media coverage is going to be the most likely way of getting it back at this point.
[16:38] <Hix> forgotten where boards txt lives
[16:39] <Upu> Hix are you reading it from the chip ?
[16:39] <marsballoon> your prob right Geoff; we are working on it
[16:39] <Upu> boards.txt shows what it should be
[16:39] <Upu> not what it is
[16:39] <Upu> I think your fuses are wrong
[16:39] <Hix> how to read from chip upu?
[16:39] <marsballoon> I was just wondering if anyone here had a miracle solution!
[16:39] <Upu> Windows ?
[16:39] <Hix> yup
[16:39] <Upu> marsballoon haha sorry no :)
[16:40] <Upu> go download ATMel Studio 6 and install it
[16:40] <Hix> k
[16:40] <Upu> marsballoon if its still transmitting location information
[16:40] <Upu> basically your only chance
[16:40] <Upu> after that send pics to local papers etc
[16:41] <Upu> chalk down to learning excerise and welcome to UKHAS :)
[16:41] <torb> marsballoon & I have certainly learnt lots of good ways to do stuff next time!
[16:41] <mattbrejza> so plotting a predicted path is now added to the app, just need someone to launch now...
[16:41] <Hix> 424Mb? Jesus ready for tomorrow then :/
[16:42] <torb> its very unlikely to still be transmitting, but we will put marsballoon's media machine on to it, he's been in the radio 3 times in the last 24 hours already...
[16:42] <marsballoon> Upu; we think it is, as a local. Mike Czerski, has sent as a signal that sounds a lot like it but it is compressed and we can't decode it.
[16:42] <torb> *on
[16:42] <Geoff-G8DHE> Having lots of people tracking also makes life a lot easier hence the spacenear.us site
[16:42] <Upu> yeah I know its no use now
[16:42] <Upu> but if you use the UKHAS format its likely to received
[16:42] <chrisstubbs> Hix pray to god you dont need the 900mb .net crap too
[16:42] <Upu> you get live predictions
[16:43] <mattbrejza> and live location
[16:43] <Upu> even if its not quite decodable its plain text
[16:43] <Upu> and humas are quite good at filling in the gaps
[16:43] <eroomde> between meals
[16:43] <Upu> :)
[16:43] <marsballoon> has
[16:43] <torb> so is there a particular preferred frequency / data format we should use?
[16:43] <marsballoon> *ha
[16:43] <Upu> 434Mhz
[16:43] <Upu> ISM band
[16:43] <Upu> 50 baud RTTY
[16:44] <Upu> or 300 baud but 50 is better (TM)
[16:44] <Hix> chrisstubbs: I've got visual studio and .net installed so should be less painfull
[16:44] <Upu> http://ukhas.org.uk/communication:protocol
[16:44] <eroomde> http://ukhas.org.uk/communication:protocol
[16:44] <eroomde> too slow
[16:44] <Upu> indeed
[16:45] <Hix> like my connection :/
[16:45] <Hix> 43 mins left
[16:45] <Hix> just to download installer
[16:45] <Upu> you can use something like a Radiometrix NTX2 to transmit
[16:45] <Hix> NTX2 prob faster than my connection too :D
[16:45] <Upu> you can read the fuses using avrdude thats down Arduino directory but I don't know how too
[16:45] <Upu> and set them
[16:46] <chrisstubbs> It reads them out to a file i think
[16:46] <Upu> http://ukhas.org.uk/guides:ntx2
[16:46] <torb> awesome :-) just to give a little more details for the interested, we used an arduino nano talking to a ublox neo-6, and xrf. In parallel the data is sent to a bluetooth dongle and logged on an android phone, which is the primary tracker. The arduino also sampled pressure and temp sensors
[16:46] <fsphil> top tip for the day: don't go outside it's bloody cold :)
[16:46] <fsphil> unless you're lucky to be in a warm place
[16:47] <torb> we have some awesome data from the balloon we recovered, we will send it out to you guys if interested once we're done formatting
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[16:47] <Upu> sure
[16:47] <Upu> are you going to do another ?
[16:47] <fsphil> hiya torb, any luck?
[16:47] <torb> Upu: very likely!
[16:47] <Upu> ok cool
[16:47] <Upu> well lets get you sorted next time
[16:48] <torb> next time I will not use a motorbike to catch up with the chase car!! Coldest, wettest ride ever, plus I lost my wallet :-/
[16:48] <Upu> ouch :/
[16:48] <Geoff-G8DHE> <marsballoon> Using the stuff on the site gives plenty of material for tracking as well, here are some recent flights I have saved images from http://360.g8dhe.net/HAB_Flights/index.php
[16:48] <eroomde> 4 wheels good
[16:49] <torb> still it was amazing fun and we did retrieve one balloon with 70 schools experiments. Hopefully the other one will show up in due course.
[16:50] <torb> fsphill: one balloon found, one missing still. 50% luck!
[16:50] <eroomde> lets hope it doesn't get burried in snow
[16:51] <marsballoon> 50% success
[16:51] <fsphil> glass half full? :)
[16:51] <marsballoon> +/-25%
[16:52] <fsphil> I think my recovery:lost ratio is about 3:2 atm
[16:52] <torb> haha yeah. Snow wasn't settling in many places around there yesterday, it was more slush.
[16:53] <eroomde> it was more settly when i left this morning from oxford
[16:53] <eroomde> an inch or two on the car
[16:53] <Upu> We have cars literally buried up here
[16:53] <Upu> http://i.imgur.com/RMkhvV8.jpg
[16:54] <Upu> thats not a buried car
[16:54] <Upu> its my small dog in a big snow drift
[16:54] <fsphil> there's been a continous but slow fall of snow here today
[16:54] <fsphil> but it's melting as quickly as it falls
[16:54] <Geoff-G8DHE> Why were you burying iy then ?
[16:54] <Upu> I wasn't he was climbing to the top of it
[16:54] <fsphil> Winter is Coming
[16:55] <Geoff-G8DHE> you could have given him crappons then
[16:55] <Hix> too much chocolate?
[16:55] <Hix> heh
[16:56] <Lunar_Lander> hi torb
[16:57] <fsphil> I do enjoy the snow, but now looking forward to summer :)
[16:57] <torb> hello Lunar_Lander
[16:58] <fsphil> I'd like to have a launch where I don't need to wear gloves
[16:58] <Lunar_Lander> gloves like in heating gloves?
[16:58] <Lunar_Lander> as you need rubber gloves for the balloon
[16:59] <eroomde> not reallu
[16:59] <eroomde> y
[16:59] <Lunar_Lander> this is something to be tested I would say
[16:59] <eroomde> would you
[16:59] <Lunar_Lander> well
[17:00] <fsphil> I've never used rubber gloves
[17:00] <Lunar_Lander> it would use up balloon rubber and I don't know what would be a good test rig
[17:01] <Randomskk> some people get very cautious around balloons
[17:01] <Randomskk> but I don't think I've ever bothered with gloves
[17:01] <Randomskk> oh, that's not true
[17:01] <Randomskk> I have on occasion
[17:02] <Hix> why gloves? oil on skin?
[17:02] <Randomskk> yea exactly
[17:02] <fsphil> leave no evidence
[17:02] <Randomskk> also fingernails and perhaps watches (take watches off maybe)
[17:02] <marsballoon> we needed gloves yesterday! It was freezing
[17:02] <torb> i cincur
[17:02] <torb> *concur
[17:02] <marsballoon> and raining
[17:02] <Lunar_Lander> these pinhole floateras
[17:02] <Lunar_Lander> sorry
[17:02] <Lunar_Lander> *floaters
[17:02] <eroomde> rain launches are difficult
[17:02] <Lunar_Lander> how big was the hole in them?
[17:02] <Randomskk> rain launches are awful
[17:02] <marsballoon> and very gusty, i.e. worst possible conditions to launch in
[17:03] <fsphil> I've done one rain/sleet/snow launch
[17:03] <torb> it was certainly an all conditions recovery
[17:03] <marsballoon> but we couldn't dissapoint the kids! who stayed despite the soaking
[17:03] <fsphil> I think all my launches have been done < 5c
[17:03] <Hix> summer fsphil
[17:03] <Hix> in NI?
[17:03] <Hix> heh
[17:04] <fsphil> it's been known to happen
[17:04] <torb> we did one last year in glorious 20C june weather, it clearly did not prepare us for the realities of UK ballooning...
[17:04] <fsphil> usually in spring
[17:04] <fsphil> for a day
[17:04] <torb> then it rained for 2 weeks solid
[17:04] <griffonbot> Received email: "Re: [UKHAS] Re: Launch Announcement - Horizon 2 - 23rd March -
[17:04] <eroomde> i remember someone coming along to help a december launch
[17:04] <eroomde> making extraordinary high-pitched noises
[17:05] <chrisstubbs> $$CHEAPO is on the tracker, but coming down quick!
[17:05] <torb> ooh where is it?
[17:05] <Lunar_Lander> OK people
[17:05] <Lunar_Lander> pinhole floaters = which hole size?
[17:05] <fsphil> Lunar_Lander: about the size of a pin ?
[17:05] <eroomde> because they were holding the balloon bare handed in 2C rain, and it was collecting on the balloon and pouring down and running down their cuffs down to their armpits
[17:05] <Lunar_Lander> OK so it is meant that way
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[17:06] <Lunar_Lander> so you have to be careful to do NO damage to the balloon
[17:06] <Upu> Dave and I launched that balloon when it was raining
[17:06] <Randomskk> eroomde: haha oh god
[17:06] <Upu> when the tension took up a load of water came out of the cord and soaked us
[17:06] <fsphil> lol
[17:07] <fsphil> must try to remember that if I do a rain launch
[17:07] <fsphil> let someone else hold it :)
[17:07] <Lunar_Lander> XD chrisstubbs
[17:07] <Lunar_Lander> 1.4 km/s
[17:08] <chrisstubbs> habitat didnt like HHMMSSCC as a time value
[17:08] <marsballoon> yeah the water was gushing down my sleeves as I held it; pure horror
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[17:08] <Lunar_Lander> btw
[17:08] <Lunar_Lander> https://www.youtube.com/watch?v=AAgnwnfy9FE
[17:08] <Lunar_Lander> some music
[17:09] Action: fsphil is listening to some wubs
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[17:10] <torb> so where are the tracking stations, is there national coverage if we sent a balloon up with a transmitter ppl could receive?
[17:10] <fsphil> as long as there's advance warning
[17:10] <fsphil> definitly
[17:11] <torb> lol, we've just calculated our descent rate. 83m/sec. Does that count as a re-entry??
[17:11] <Hix> Upu, when this finally downloads it doesnt need serial does it? GPS is connected to theat
[17:11] <Upu> parachute ?
[17:11] <fsphil> how high did it get torb?
[17:11] <Upu> Hix you need a programmer ?
[17:11] <torb> 26km
[17:11] <fsphil> 83m/s would be normal enough for the inital descent
[17:12] <marsballoon> parachute broke off :/
[17:12] <Hix> upu got a p.o.s usbtinyisp
[17:12] <eroomde> wtf
[17:12] <Upu> broke off ?
[17:12] <eroomde> broke off in flight?
[17:12] <marsballoon> but the experiment tray made a good subsistude parachute
[17:12] <chrisstubbs> kinder eggs?
[17:12] <torb> there was a slight roll-off as it got lower, but yeah the swivel broke presumably as the parachute took load
[17:12] <marsballoon> yar the linkage; that was supposed to take up to 200N, snapped
[17:13] <fsphil> what was it made from?
[17:13] <Hix> dynamic or static 200N
[17:13] <torb> steel, presumably recycled chinese paperclips
[17:13] <torb> static 200N, so bugger all dynamic
[17:13] <Lunar_Lander> ?
[17:14] <eroomde> that's unfortunate
[17:14] <Lunar_Lander> btw is it OK to have a software serial to the PC as a debug or so?
[17:14] <Lunar_Lander> that shouldn't be that timing critical
[17:14] <Upu> if course lunar
[17:15] <torb> yes but fortunately it didnt seem to affect the landing as the experiment tray was a large area of foam that as marsballoon said, would have acted as a nice drag surface
[17:15] <eroomde> assuming it was stable in that configuration!
[17:15] <Lunar_Lander> what was the experiment btw?
[17:15] <eroomde> no beef if it was more stable falling edge-on
[17:16] <eroomde> and your figure of 86m/s suggests it might have...
[17:16] <eroomde> unless i'm getting mixed up
[17:16] <torb> there were 140 tiny experiments in total, each in a kinder egg capsule
[17:16] <Lunar_Lander> cool!
[17:16] <Lunar_Lander> please list them up :)
[17:17] <marsballoon> gimmie a sec
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[17:17] <torb> we have accelerometer data too but can't figure out the format as it was recorded using a phone app
[17:17] <marsballoon> I have a list somewhere
[17:17] <Lunar_Lander> cool
[17:17] <Lunar_Lander> damned clouds
[17:18] <Lunar_Lander> PANSTARRS is supposed to show up like the last time today
[17:18] <Lunar_Lander> and the western sky isn't clear
[17:18] <fsphil> marsballoon: any cameras?
[17:19] <torb> yes, a gopro on the one we can't find!!!! argh
[17:19] <fsphil> eep
[17:19] <torb> Lunar_Lander: that could be my fault, I bought a 10" dobsonian the other day, so it's destined to be cloudy FOREVER
[17:20] <fsphil> so it's your fault torb
[17:20] <Lunar_Lander> oh
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[17:20] <torb> really annoying that the one we recovered was the one without the camera
[17:20] <fsphil> good size scope that
[17:20] <torb> yep. I took a pic of the moon through it by holding the phone camera up to the eyepiece, best pic of the moon I've ever taken!
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[17:21] <fsphil> last time I got a new scope I didn't see the sky for about a month
[17:22] <fsphil> and the neighbour installed an outside light that's always on
[17:22] <Lunar_Lander> damn
[17:22] <Lunar_Lander> that's annoying
[17:22] <Lunar_Lander> did he never watch Sir Patrick?
[17:22] <fsphil> they probably don't know what a telescope is
[17:22] <torb> argh
[17:23] <torb> found moon pic pic.twitter.com/bGVbxQTp5f
[17:23] <fsphil> that is good
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[17:23] <Upu> yeah better than mine
[17:23] <fsphil> it's great getting close up to the terminator
[17:24] <fsphil> seeing the shadows of the crater walls and the peaks in the middle
[17:25] <torb> yeah
[17:25] <fsphil> I got a really good look at jupiter through a 14" dob
[17:25] <fsphil> but the seeing wasn't great that night
[17:26] <fsphil> a bit wobbly
[17:26] <fsphil> still enough to pick out individual storms
[17:26] <Lunar_Lander> yay
[17:26] <Hix> struggling to figh turge to be childish and make a reference to looking at a certain planet
[17:27] <torb> wow, well my budget only stretched to the 10" because the mirrors were ruined and it was on eBay. Had to send them off for re-coat, primary is still a little bit pitted
[17:27] <fsphil> still a great size scope, should be great for nebula
[17:27] <arko> Morning
[17:28] <fsphil> morning mr.arko
[17:28] <Upu> Arko!
[17:28] <torb> marsballoon and I are thinking of designing a tracker and turning it into a goto scope using a raspi as the controller
[17:28] <Upu> I made a baby one : http://i.imgur.com/BR1tJnD.png
[17:28] <arko> My head... It hurts
[17:28] <arko> Never do a drinking game to Lain
[17:29] <Hix> torb check out PICGoto on goolge!
[17:29] <arko> Upu: nice!!!
[17:29] <Upu> wanted to prove it works before going for that design of yours :)
[17:29] <arko> Are those 0402 LEDs?
[17:29] <fsphil> speaking of Mars, I've yet to get a good look at that. every time I try it's just a reddish featureless disk
[17:29] <Upu> 0603
[17:30] <arko> Ah, cool
[17:30] <torb> cool, thanks Hix, I am looking at various stuff. Would be good to integrate a camera too, got a nice SLR controller on raspi, then buy damaged EOS 400D off ebay :-)
[17:30] <eroomde> what is it for upu?
[17:30] <arko> You have so much space though, why not 1206
[17:30] <Upu> nothing really eroomde just messing
[17:30] <Hix> torb PicGoto++ has focusser too
[17:30] <arko> Or at least 0805
[17:30] <fsphil> eroomde: spinny flashy LEDs. nuff said :)
[17:30] <torb> oooooo
[17:30] <eroomde> is that a gnd ring running round the circumference?
[17:30] <arko> eroomde: tronnnnn
[17:30] <torb> fsphil I was about to come to that conclusion too :-)
[17:30] <Upu> no thats VCC
[17:30] <Upu> GND is the underside
[17:30] <fsphil> ack, there's another crack on my laptop
[17:31] <eroomde> ah right, that makes much more sense
[17:31] <eroomde> silly q
[17:31] <arko> eroomde: did you get that gallery last night?
[17:31] <Upu> just something I threw together
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[17:31] <Upu> did you not see Arko's tron ring ?
[17:31] <eroomde> no
[17:31] <eroomde> arko: yes
[17:31] <eroomde> beautiful
[17:31] <Upu> http://www.youtube.com/watch?v=Qgv3DA1jGQs.
[17:31] <Upu> http://www.youtube.com/watch?v=Qgv3DA1jGQs
[17:32] <arko> yeah, wallpaper goldmine
[17:32] <arko> Upu: that's my friends design btw
[17:32] <Upu> I know
[17:32] <Upu> but I don't know your friend
[17:33] <arko> :P
[17:33] <arko> I just built mine
[17:33] <arko> They are so much fun
[17:33] <Upu> 4 coins cells ?
[17:33] <arko> Cr123
[17:33] <Upu> k
[17:33] <arko> Going to have coin cells someday
[17:33] <eroomde> oh that
[17:33] <arko> They don't last
[17:33] <eroomde> did i see that at NSL
[17:33] <arko> :)
[17:33] <Upu> right snow beckons
[17:33] <eroomde> the 3d thing on the desk?
[17:34] <arko> Ya
[17:34] <fsphil> I had started an LED cube. 6x boards with 8x8 LED matrix. stopped when I realised how many that is :)
[17:34] <eroomde> i remembers
[17:35] <arko> Haha!
[17:35] <Hix> nickjohnson on #hackvana is working on a LED array thingy atm
[17:35] <Hix> think its a kit
[17:35] <fsphil> ah nice
[17:36] <fsphil> I calculated it would cost about £100 for all the LEDs and the LED drivers
[17:36] <fsphil> not really worth it :)
[17:36] <Hix> sec fsphil i'll get info
[17:36] <fsphil> I may do a 4x4 version
[17:38] <Hix> fsphil: http://www.arachnidlabs.com/blog/2013/03/15/introducing-minimatrix/
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[17:40] <eroomde> not a cube though!
[17:41] <Hix> you could use 6 eroomde ;p
[17:41] <eroomde> that's not a cube
[17:41] <eroomde> that's 6 2d surfaces arranged funny
[17:41] <eroomde> the led cubes are nxnxn
[17:42] <torb> hab related question: what experience have people had decoding telemetry using rtl-sdr receivers or funcubedongle?
[17:42] <eroomde> http://www.youtube.com/watch?v=6mXM-oGggrM
[17:42] <Hix> yeah yeah
[17:42] <eroomde> torb: they work ok
[17:42] <Hix> torb, they're cool
[17:42] <eroomde> pretty good, especially for the moneny, not as good as a decent amatuer-radio style rig
[17:42] <torb> what software do you usually use, and can you get a datastream out?
[17:42] <Hix> SDRSharp
[17:43] <eroomde> http://ukhas.org.uk/guides:sdr_tracker
[17:43] <eroomde> if lumbered with windows
[17:43] <fsphil> gqrx for linux/mac (not sure on the mac bit)
[17:43] <torb> i can use either
[17:44] <torb> i used sdrsharp for a bit, but I had trouble getting the gnuradio stuff compiled on linux, I got stuck in dependency hell
[17:44] <Hix> marketing!!! http://goo.gl/BmV32
[17:45] <craag> I find windows with SDRsharp and dl-fldigi to be the easiest to set up and use.
[17:46] <bertrik> I've had a bit of trouble with rtl-sdr, getting a strong signal, but still have errors in the decode
[17:46] <chrisstubbs> yeah sdr# is pretty straightforward to set up and well documented
[17:46] <chrisstubbs> need a fast (ish) PC though
[17:47] <torb> i have a core2 duo laptop that basically gets used for everything
[17:47] <craag> Yeah won't run on a netbook, but should be fine on the core2 duo
[17:47] <chrisstubbs> it didnt run quite fast enough on my core2duo but thats a pretty old one now
[17:47] <craag> Just about runs on my E-350 based netbook, with sample rate of 250KHz.
[17:48] <torb> I can to 2048sps without any dropped frames. 3200 drops frames.
[17:48] <chrisstubbs> i didnt tweak the settings much
[17:48] <torb> *2048ksps, eg 2.048msps
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[17:50] <craag> You should try to use the lowest sample rate when decoding, it tends to be a bit more selective that way, and doesn't stress your cpu un-necessarily.
[17:50] <craag> For initially finding the signal though, 3Msps is great :D
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[17:54] <torb> cool, the dl-fldigi is useful! I have a +13dBi yagi, although admittedly it's TV so not low frequency. marsballoon has a +9dBi one with larger freq range
[17:54] <craag> Ok, a ham radio 70cm (434MHz) yagi would ideal.
[17:54] <craag> And a magmount monopole antenna for chasing works well.
[17:55] <Hix> LPRS do a decent one for not too much dough if you can't be bothered making
[17:58] <marsballoon> pressure and temperature data for Marsballoon is out: http://twitpic.com/cds5fy
[17:59] <marsballoon> this is from the recovered balloon; bit of extreme wind chill during airbraking!
[18:03] <Lunar_Lander> marsballoon, do you have the list?
[18:04] <Lunar_Lander> cool Phobos and Deimos?
[18:04] <Lunar_Lander> :)
[18:04] <torb> yep, hence marsballoon
[18:04] <marsballoon> ah yes! ze list
[18:04] <Hix> Right, got AtmelStudio intalled, how do I check fuses out then?
[18:07] <m0psi> hi all, I asked about this yesterday, but just want to ask again to be sure. I am about to mount my gps rx antenna on the payload box. Is it OK to have it pointing out of the side of the box, or does it have to be on the lid? I was concerned that if the payload was rotating slowly, then it could lose sight with satellites, as it precesses. So, it would not get a chance of getting a lock, even with the abundance of satell
[18:07] <m0psi> ites.
[18:08] <Randomskk> depends on the type of antenna
[18:08] <Randomskk> is it a helical (like a short stub) or a patch (flat)?
[18:08] <Lunar_Lander> what sort of antenna is it?
[18:08] <m0psi> one of them from upu
[18:08] <Hix> quadrifilliar
[18:08] <Randomskk> doesn't matter hugely then really
[18:08] <m0psi> http://ava.upuaut.net/store/index.php?route=product/product&path=59_60&product_id=51
[18:09] <Hix> mine gest a lock inside with no windows
[18:09] <m0psi> inside the polystyrene?
[18:09] <Lunar_Lander> try to have that one pointing up
[18:09] <marsballoon> Sorry Lunar lander; I left the list at work! There will be a full rundown on the UK space agency website as they sponsored us.
[18:09] <craag> Polystyrene will not be an issue for it at all.
[18:09] <Lunar_Lander> doesn't need to be in the styrofoam
[18:10] <Lunar_Lander> marsballoon, cool!
[18:10] <Lunar_Lander> can you say one or two examples of what was measured?
[18:10] <Lunar_Lander> well pressure and temperature I can see on the twitter image :)
[18:10] <m0psi> ok, so pointing up, inside the box, so strap it to the side of the box?
[18:10] <craag> That would be perfect imo.
[18:11] <m0psi> perfect is a good answer. thanks.
[18:13] <craag> It'll do better kept away from any large bits of metal in the box. But you shouldn't really have any of those anyway!
[18:13] <marsballoon> oh well it was students from ages 3 to 23 so we got a great mix; from garlic to chocolate, cosmic ray detectors to servos, cheese to rubber bands and so on!
[18:13] <Hix> ping Upu
[18:13] <marsballoon> One of theme even put his nintendo game cartridge on board with explicit instructions not to lose it; which we have :/
[18:14] <Lunar_Lander> oh
[18:14] <Lunar_Lander> XD chocolate
[18:14] <marsballoon> *them
[18:14] <m0psi> yes, i will, hix. agreed craag, no faraday shields! :-)
[18:14] <Lunar_Lander> m0psi, and glue on the black cap with hot glue
[18:16] <m0psi> why?
[18:16] <craag> It's supplied loose.
[18:16] <Lunar_Lander> yes
[18:17] <craag> I found a small spot of superglue also worked.
[18:17] <m0psi> ah, i think my version was duely blobbed by upu
[18:17] <craag> That's alright then! :)
[18:18] <m0psi> point taken nonethe less
[18:18] <m0psi> point == tie EVERY thing down.
[18:21] <Upu> hix
[18:21] <m0psi> hey upu
[18:21] <Hix> hello, got atmel studio installed
[18:21] <Upu> Tools -> Device programming
[18:21] <Upu> hi Ali
[18:21] <Hix> but not seeing tinyisp
[18:21] <m0psi> just talked about you/gps
[18:21] <Upu> ah ok
[18:21] <Upu> it needs to see the device :/
[18:21] <m0psi> ok to put the sarantel antenna inside the payload box?
[18:21] <m0psi> pointing up
[18:22] <Upu> absolutely
[18:22] <Hix> yeah, said it was a p.o.s
[18:22] <Upu> unless its made of lead
[18:22] <m0psi> good answer
[18:22] <Hix> must be a way though
[18:22] <Upu> doesn't need to be vertical
[18:22] <Upu> try google hix
[18:22] <m0psi> it is a kryptonite one, does that matter?
[18:22] <Upu> and/or try avrdude
[18:22] <Upu> unless your superman no
[18:22] <m0psi> ok
[18:23] <Hix> thats an idea upu ;p, I am dude :)
[18:23] Nick change: MichaelC -> MichaelC|Away
[18:23] <Upu> avrdude must work
[18:23] <Upu> as its called via Arduino to program
[18:23] <Upu> its running an internal clock which is why the timing is broken
[18:23] <Upu> afk need some food
[18:26] <Lunar_Lander> wait
[18:26] <Lunar_Lander> what programmer do you have?
[18:27] <Lunar_Lander> I read that if you have an avrispmkII, and got AVRstudio, it installs the Jungo driver
[18:27] <Lunar_Lander> and that makes it impossible to use the ArduinoIDE or avrdude
[18:34] <mfa298> I'd had a similar issue with an atmega32u2 board with usb where the drivers installed for that stopped the avrispmkii working with atmel studio
[18:34] <craag> Yeah, you can get around it by installing the libusb filter driver.
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[18:35] <craag> good evening mfa298
[18:36] <mfa298> evening craag
[18:36] <craag> From what I remember, I let AVRstudio install it's drivers, then installed the libusb filter driver, then it all just worked.
[18:36] <craag> There may have been a reboot in there, I can't remember exactly.
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[20:15] <Lunar_Lander> DINNER!
[20:15] <Lunar_Lander> xD
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[20:43] <chrisstubbs> what have you got lunar_lander?
[20:43] <_ed> ha sorry its only basic to you guys but ive just manged to get 3 leds blinking via the arduino unit!!!!
[20:44] <chrisstubbs> _ed gotta start somewhere! :)
[20:44] <arko> Yoo
[20:44] <Lunar_Lander> spaghetti :)
[20:44] <Lunar_Lander> _ed, well done :)
[20:45] <chrisstubbs> love a bit of OT discussion ;)
[20:45] <arko> Will a 40mm pvc tube work for a 1200g kaymont balloon?
[20:45] <chrisstubbs> http://ukhas.org.uk/guides:balloon_data
[20:46] <Lunar_Lander> _ed, was it you who I recommended Jeremy Blum's tutorials to?
[20:46] <mfa298> _ed: well done, we've all been there!
[20:46] <_ed> ha im well pleased, as of only wed i didnt have a clue and now i have a very very small knowledge of it
[20:48] <chrisstubbs> sorry arko kaymont isnt listed there
[20:48] <daveake> arko yes
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[20:50] <arko> daveake: tanks
[20:50] <arko> Thanks
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[20:54] <Lunar_Lander> daveake rocks
[20:56] <fsphil> I was really chuffed when I first got a microcontroller to blink an LED
[20:56] <Lunar_Lander> what did you do?
[20:56] <fsphil> a dance
[20:56] <fsphil> around the room
[20:56] <Lunar_Lander> YAY
[21:00] <daveake> See where it led
[21:01] <fsphil> it lit the way
[21:01] <daveake> an ode to joy
[21:02] <mfa298> if you get some sound out as well you have the makings of a party
[21:03] <daveake> You saw it here first, but here's PIE5 - https://twitter.com/Raspberry_Pi/status/315471079344852995/photo/1
[21:05] <Lunar_Lander> daveake rocks
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[21:08] <number10> hopefully a high 5 daveake
[21:09] <Lunar_Lander> repeat
[21:09] <Lunar_Lander> daveake rocks
[21:09] <Lunar_Lander> xD
[21:10] Action: chrisstubbs imagines a rock with daveake written on it
[21:11] <Lunar_Lander> xD
[21:12] <Lunar_Lander> nature wants to kid me
[21:12] <Lunar_Lander> I wasn't able to see PANSTARRS all the time due to overcast
[21:13] <Lunar_Lander> now there is a planet/star in the western sky
[21:13] <Lunar_Lander> :(
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[21:27] <Lunar_Lander> xD charlie brooker rocks
[21:27] <Lunar_Lander> http://s.gullipics.com/image/o/k/m/5yvayn-knl9t7-vhog/vlcsnap2013032322h21m26s202.png
[21:31] <eroomde> change your nick to reflect this Lunar_Lander
[21:31] <Lunar_Lander> :P
[21:31] <eroomde> i do like all of his wipes
[21:31] <Lunar_Lander> yeah
[21:32] <Lunar_Lander> I like the subtle jokes
[21:32] <Lunar_Lander> like the horse and the biohazard sign there
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[22:35] <Willdude123> Evening all.
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[22:35] <fsphil> evenings
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[22:37] <fsphil> hehe, freeview is off air here
[22:38] <LazyLeopard> Running on batteries?
[22:39] <fsphil> not sure what's up. went off 20 minutes ago, probably just a power fault
[22:40] <fsphil> the storms has been causing power problems all over the place
[22:40] <fsphil> -s
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[22:46] <SpeedEvil> sigh
[22:46] <SpeedEvil> I just got very cold, and thought that it must be well below zero outside.
[22:46] <LazyLeopard> Yeah, power problems out your way made it onto the national news today.
[22:47] <SpeedEvil> turns out that fan heaters on 'blow' don't make the room warmer
[22:47] <LazyLeopard> Apparently Arran's in darkness too...
[22:48] <fsphil> yea heard that
[22:54] <Lunar_Lander> Willdude123, I got a question
[22:55] <Willdude123> Err... Go on.
[22:55] <Lunar_Lander> your parents said no to HAB but are they OK with like getting an arduino and doing electronics as such?
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[22:55] <Willdude123> Yep.
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[22:55] <Willdude123> I have one.
[22:55] <Lunar_Lander> cool
[22:55] <Lunar_Lander> I just thought about something that I think mattltm had also as an idea
[22:56] <Lunar_Lander> a driftsonde
[22:56] <Lunar_Lander> in a river
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[22:56] Nick change: [1]chrisstubbs -> chrisstubbs
[22:56] <Willdude123> A driftsonde?
[22:56] <chrisstubbs> Power just went out. turns out i put my computer and all 3 monitors on the UPS but not the router...
[22:56] <Lunar_Lander> yes, something like a balloon payload deployed into a river
[22:57] <Willdude123> Why?
[22:57] <Lunar_Lander> for science
[22:57] <Lunar_Lander> xD
[22:57] <Willdude123> More a geography thing, isn't it?
[22:57] <Lunar_Lander> you can learn about the river currents for example
[22:57] <Lunar_Lander> yerah
[22:57] <gonzo_> thay would be dave's dept then
[22:57] <Lunar_Lander> *yea
[22:57] <gonzo_> or tides in his case
[22:58] <Willdude123> I'm kinda good really, I hate geography.
[22:58] <Lunar_Lander> oh
[22:59] <Willdude123> :-)
[22:59] <fsphil> how big's the UPS chrisstubbs?
[22:59] <fsphil> I've got the smallest APC one here, runs the PC for about 15 minutes
[22:59] <Willdude123> I'm kinda stuck for ideas really with my arduino
[22:59] <chrisstubbs> PC is just on a small one, i built a big whole house one but its waiting for warmer weather to be wired up!
[23:00] <chrisstubbs> http://chris-stubbs.co.uk/wp/?p=130
[23:00] <chrisstubbs> http://www.instructables.com/id/Super-Simple-Super-Cheap-DIY-UPSCCTV-system-fro/ (prototype version)
[23:01] <chrisstubbs> 600w inverter with 20 lead acid batteries :P
[23:02] <fsphil> niiice
[23:02] <fsphil> we don't have enough power cuts to justify that :)
[23:02] <chrisstubbs> we used to have loads but since i built that it dosent happen much
[23:03] <chrisstubbs> and you can bet your life they will happen on the days its disconnected
[23:03] <fsphil> oh guaranteed
[23:03] <fsphil> I'm just waiting for mine to go out now that I've just said that
[23:03] <chrisstubbs> bagged 4 little office UPS's off gumtree for £30 last year
[23:04] <chrisstubbs> just needed fresh batteries (which i have tens of now)
[23:04] <fsphil> that inverter is a lot quieter than my puny 150w
[23:04] <gonzo_> you should have some fuses between the batts. As there is a risk of one batt getting shorted cells, the remaining ones will discharge (spectacularly!) into it
[23:05] <chrisstubbs> gonzo_, yeah each battery currently has a 7.5a fuse on it
[23:05] <gonzo_> good move
[23:05] <chrisstubbs> just incase that exact thing happens
[23:05] <chrisstubbs> :P
[23:05] <fsphil> see I'd not think of that
[23:06] <gonzo_> a friend had that happen recently
[23:06] <chrisstubbs> Me and domlin quite enjoy stuff like that
[23:06] <chrisstubbs> we had a rack of 8 batteries like this: http://bit.ly/13mj14g
[23:06] <chrisstubbs> just we could just short out on stuff :P
[23:08] <gonzo_> would power your old valve radio for a while!
[23:08] <fsphil> those non-sine wave inverters are nasty
[23:09] <Lunar_Lander> Willdude123, do you know Jeremy Blum?
[23:09] <Willdude123> Nope.
[23:09] <chrisstubbs> yeah :( you can get a 1kw pure sine off ebay for about £100
[23:09] <chrisstubbs> chinese crap though
[23:10] <fsphil> not worth the lingering doubt that it might explode and kill everything at any moment
[23:10] <Lunar_Lander> Willdude123, https://www.youtube.com/course?list=ECA567CE235D39FA84
[23:10] <chrisstubbs> yeah i fitted a smoke alarm and cctv camera in the loft incase that happens :P
[23:10] <fsphil> good thinking
[23:11] <Lunar_Lander> xD
[23:12] <Willdude123> Anyone know where I could get an irobot create? Or are there better alternatives?
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[23:15] <chrisstubbs> Did a little video looking at what those inverters put out. and got a spanner glowing red ;) http://youtu.be/a2PM6xEJG9U
[23:15] <chrisstubbs> harmless youtube plug ;)
[23:15] <chrisstubbs> Willdude123, would you not be interested in building one from scratch?
[23:16] <Willdude123> No idea how to.
[23:16] <fsphil> you'd think they'd at least try to filter the output of those things
[23:16] <chrisstubbs> arduino + h-bridge + motors
[23:22] <Willdude123> Maybe.
[23:23] <Willdude123> I'd sort of prefer to start with an irobot create.
[23:24] <chrisstubbs> yeah i know what you mean
[23:24] <chrisstubbs> can you get them second hand on ebay?
[23:27] <chrisstubbs> im off guys. night!
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[23:35] <Spoz_> guh, desolder ntx2, resolder ntx2, ntx2 not working anymore
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[23:50] <Spoz_> so, can anyone tell me why, when using an arduino to send RTTY, the delay needs to be longer than calculated
[23:50] <Spoz_> eg 20150µs for 50 baud instead of 1/50 = 20000µs
[23:50] <Spoz_> I have been trying 6667µs for 150 baud and I get checksum errors every 5th packet or so
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[00:00] --- Sun Mar 24 2013