highaltitude.log.20100809

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[00:18] <Laurenceb> http://translate.google.co.uk/translate?hl=en&sl=pl&u=http://www.kamami.pl/index.php%3FproductID%3D136939&ei=fzpfTL6sNKj00gSJmaHLBw&sa=X&oi=translate&ct=result&resnum=9&ved=0CDIQ7gEwCDgK&prev=/search%3Fq%3Dlsm303dlh%26start%3D10%26hl%3Den%26safe%3Doff%26client%3Dfirefox-a%26hs%3DO6u%26sa%3DN%26rls%3Dcom.ubuntu:en-GB:unofficial
[00:18] <Laurenceb> arg huge url sorry
[00:19] Action: SpeedEvil stabs his internet.
[00:19] <Laurenceb> seems to be in stock, I'll try emailing them to check tomorrow
[00:19] <SpeedEvil> Interesting
[00:19] <SpeedEvil> the 'cheap' 6 axis chip was accel + gyro?
[00:19] <Laurenceb> yes, but impossible to get
[00:20] <SpeedEvil> ah
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[00:20] <Laurenceb> they will give out two free samples per address apparently
[00:20] <Laurenceb> thasts about £11 aiui
[00:21] <Laurenceb> their stm32 board is nice too
[00:22] <Laurenceb> aha out of stock stuff has "product unavaliable" in red in place of the order button, so looks like they have it :D
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[00:23] Action: SpeedEvil sighs.
[00:24] <SpeedEvil> I need to construct a passive reradiator for phone.
[00:24] <Laurenceb> as in cooling or signal?
[00:24] <SpeedEvil> signal
[00:25] <Laurenceb> isnt there a company that will install a adsl to GSM etc gateway
[00:25] <Laurenceb> and you can get rent from them
[00:25] <Laurenceb> - for reception black spots
[00:26] <SpeedEvil> ha fucking ha.
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[00:26] Action: SpeedEvil sighs.
[00:26] <Randomskk> aka femtocell?
[00:26] <SpeedEvil> To quote Blackadder.
[00:26] <SpeedEvil> 'A cunning plan, with one tiny flaw'.
[00:26] <SpeedEvil> I want this as my DSL is dropping out around midnight.
[00:26] <Laurenceb> doh
[00:27] <SpeedEvil> And as it only does it then, and as it's hard to get an engineer at midnight unless you sever a 100000 trunk...
[00:28] <SpeedEvil> I - almost - wouldn't mind if that was all it did.
[00:28] <Laurenceb> http://www.femtoforum.org/femto/
[00:28] <SpeedEvil> But it causes themodem to retrain down.
[00:28] <Laurenceb> thats obviously what I was thinking of
[00:28] <Laurenceb> doesnt looks very commercial yet
[00:28] <SpeedEvil> which causes the IP profile to be mis-set at BT.
[00:29] <SpeedEvil> So even whenmy modem syncs back up at 2.3M - it can be stuck on 128K for 2 days.
[00:29] <Laurenceb> http://www.3g.co.uk/PR/Feb2007/4221.htm
[00:30] <Laurenceb> http://www.pteryx.eu/ <- interesting
[00:33] <SpeedEvil> IIRC voda sell them for 80 quid
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[00:36] <SpeedEvil> Avoinding streaming music over 3G :)
[00:38] <SpeedEvil> Oh
[00:38] <SpeedEvil> That was something else that popped up missed the UAV thing
[00:39] <SpeedEvil> neat
[00:49] <Laurenceb> I'm off, cya
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[00:50] <SpeedEvil> wave!
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[04:33] <juxta> hey natrium42
[04:34] <natrium42> hi juxta
[04:35] <juxta> I had a stall at a science fair the other day, a guy asked me about who ran the tracker etc, I mentioned your name and he knew who you were, hehe :)
[04:35] <natrium42> haha, cool
[04:36] <juxta> 'oh that guy who does all that DS hacking'
[04:36] <juxta> :)
[04:37] <natrium42> not anymore though :P
[04:37] <juxta> how are plans for future launches coming along?
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[05:12] <juxta> hmm, I'm tracking 11 sats indoors with my ublox, I've never seen so many before
[05:24] <Darkside> hehe
[05:24] <Darkside> ublox's are awesome
[05:26] <juxta> oh hey Darkside :)
[05:26] <juxta> did you tee something up with PH yesterday?
[05:27] <Darkside> ?
[05:27] <Darkside> oh
[05:27] <Darkside> its you :D
[05:28] <Darkside> and he said he'll do something in the next few weeks
[05:28] <juxta> awesome
[05:29] <Darkside> hehe, i've got my prototype transmitter set up on my desk
[05:29] <Darkside> its wire porn
[05:29] <Darkside> (breadboard prototype)
[05:29] <juxta> hehe
[05:30] <juxta> what freq was it fo again?
[05:30] <juxta> for*
[05:31] <juxta> 40m or something?
[05:31] <Darkside> well, it can do anything between DC and 25Hz
[05:32] <Darkside> 25MHz*
[05:32] <Darkside> but i wouldn't go higher than 14MHz with it
[05:33] <juxta> nice - what's the oscillator?
[05:34] <Darkside> AD9835
[05:35] <Darkside> and core microcontroller is an AT-XMega
[05:36] <juxta> oh awesome
[05:36] <juxta> I'd love to fly that once it's ready if you're keen :)
[05:37] <Darkside> yeah sure!
[05:37] <Darkside> still need to miniaturise it tho :P
[05:37] <juxta> you mentioned you were biamping it for about 5W, right?
[05:37] <juxta> heh - how big is it now?
[05:37] <Darkside> hopefully
[05:37] <Darkside> currently its a mess of wires
[05:37] <Darkside> and various breakout boards
[05:37] <Darkside> i'm working on a complete board design
[05:37] <juxta> haha
[05:37] <juxta> excellent
[05:38] <Darkside> problem is the Xmega is a TQFP-100
[05:38] <juxta> oh, annoying
[05:38] <Darkside> hopefully the routing machine at uni can do that
[05:38] <juxta> yeah, they can do TQFP, just not sure on track sizes
[05:39] <juxta> why not get the DIP package?
[05:39] <Darkside> there is no DIP Xmega :)
[05:39] <juxta> ah right
[05:40] <juxta> so what does the Xmega do in the circuit?
[05:40] <Darkside> controls everything
[05:40] <juxta> will the transmitter be a morse beacon or similar?
[05:41] <Darkside> for my project, it collects data from variosu sources (ADC, UART sniffing, etc) then transmits it out using whatever modulation mode i want
[05:41] <Darkside> be it morse, RTTY, MFSK
[05:41] <Darkside> somrthing else
[05:41] <juxta> nice
[05:41] <Darkside> not sure yet
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[05:42] <juxta> well yeah, let me know as it comes together, that'd be great to fly :)
[05:42] <Darkside> ideally i'll just have a heap of stuff implemented
[05:42] <Darkside> awesome!
[05:42] <Darkside> idally we'd just have to trail a wire behind it
[05:42] <juxta> there was a really quick and dirty HF morse beacon flown recently with perhaps 30mW from memory, it got big range
[05:42] <juxta> let me find the link
[05:42] <Darkside> also the xmega will run at -55 degrees C :)
[05:42] <Darkside> i have tested that :P
[05:42] <juxta> haha
[05:43] <juxta> hopefully it doesnt come to that ;p
[05:43] <Darkside> hehe
[05:43] <Darkside> lots of fun testing that :P
[05:44] <juxta> http://www.swharden.com/blog/2010-07-14-high-altitude-balloon-transmitter/
[05:44] <juxta> http://www.swharden.com/blog/images/balloon_transmitter_final.png
[05:44] <juxta> checkout the complexity :D
[05:44] <Darkside> NASTY
[05:44] <Darkside> square wave.....
[05:45] <juxta> haha
[05:45] <Darkside> i've done that before
[05:45] <juxta> yes I did say quick and dirty ;p
[05:45] <Darkside> yes
[05:45] <Darkside> it will also be receivable at double an dtriple the target frequency :)
[05:45] <juxta> yeah
[05:46] <juxta> but that's just a bonus :D
[05:46] <Darkside> pff :P
[05:46] <Darkside> the AD9835 i'm using outputs a swuare wave
[05:46] <Darkside> square*
[05:46] <Darkside> argh
[05:46] <Darkside> it outputs a sine wave
[05:47] <Darkside> so i dont need much filtering on the output
[05:47] <juxta> if you can get 5W of output power then that could be heard over a huge range
[05:47] <juxta> will be great to see who can hear it
[05:48] <Darkside> mm
[05:48] <Darkside> i'm more concerned as to how much current that will draw
[05:49] <Darkside> still, even 1W would be enough
[05:49] <juxta> yeah
[05:49] <Darkside> and i can probably do that using a hackish FET amp
[05:49] <juxta> some of th UK guys in here have attained over 500km range with 10mW
[05:49] <juxta> (on UHF)
[05:49] <Darkside> wow
[05:50] <juxta> http://ukhas.org.uk/general:uk_records
[05:50] <Darkside> right now, my sig-gen puts out maybe a few mW
[05:50] <Darkside> not much tho
[05:51] <Darkside> hence the preamp which i should have the PCB for soon
[05:53] <juxta> any photos of it all Darkside?
[05:53] <Darkside> nah
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[05:58] <juxta> oh well - let me how it all comes along ;)
[05:58] <Darkside> yep
[05:58] <juxta> Darkside, if you PM me your email I'll add you to the mailing list
[06:02] <Darkside> cool
[06:04] <Darkside> done
[06:04] <juxta> :)
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[06:21] <juxta> hey m1x10
[06:22] <Darkside> http://i.imgur.com/Cr0pV.jpg
[06:22] <m1x10> good morning juxta
[06:22] <Darkside> what i'm currently playing with
[06:22] <juxta> haha
[06:22] <m1x10> :P
[06:23] <juxta> is that the old SUA building?
[06:23] <juxta> or SAU
[06:23] <juxta> whatever it was
[06:23] <juxta> m1x10, i've modified the tinygps parsing library to use the PUBX sentence :)
[06:24] <Darkside> yep
[06:24] <Darkside> Clubs association now
[06:24] <m1x10> juxta how does it work for u? I don't use tinygps
[06:25] <juxta> I didn't use it before either, but it turned out to be well suited
[06:25] <m1x10> I mean if it works ok ?
[06:25] <juxta> works great
[06:25] <m1x10> nice
[06:25] <juxta> i'll put it on the wiki soon
[06:25] <Darkside> juxta: you're a uni adelaide student?
[06:26] <juxta> Darkside, yeah sort of - not at the moment :)
[06:26] <Darkside> heh k
[06:26] <Darkside> ok
[06:26] <juxta> that gun looks pretty awesome though :D
[06:26] <m1x10> I did my first battery test in the weekend... I used 6 duracells giving 9.6V and it lasted for 3 days ! :)
[06:27] <m1x10> I think I did too much power saving stuff with the APRS
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[10:30] <DanielRichman> hey there rharrison_
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[11:22] <timbobel> they're going to ATV my video from a lighthouse during a radioevent in 2 weeks
[11:32] <rharrison_> Hi DanielRichman
[11:32] <DanielRichman> rharrison_: natrium installed a copy of the tracker onto habhub
[11:32] <rharrison_> Oh cool
[11:32] <rharrison_> so are we going for the working hab hub then
[11:32] <rharrison_> Even if it's the exitsing code
[11:32] <DanielRichman> I don't know, I think so. It hasn't been "properly discussed" as to whether we should do that
[11:33] <rharrison_> I can integrate the listener server into the tracker
[11:33] <DanielRichman> but it looks like it. He got a google maps key and everything, and he mocked up the spacenear.us logo to say habhub.org (temporary or permanent, we don't know)
[11:33] <rharrison_> And put historical mission recall into the tracker
[11:34] <rharrison_> about 5 line changes iirc
[11:34] <DanielRichman> rharrison_: NB: php is currently only enabled for the /tracker directory
[11:34] <rharrison_> The code should be moved into git too i guess
[11:34] <rharrison_> Ok
[11:35] <rharrison_> Well I may make a start on that tonight
[11:35] <rharrison_> I may have to enable php on web_root/listener too
[11:36] <DanielRichman> sure, that's fine
[11:36] <rharrison_> Have we got a group of active people together who are going to be able to make decisions as to whats going on
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[11:37] <DanielRichman> well on the one hand we don't want anything too "official"/a committee or it might spoil the mood of an otherwise informal group; but we don't want to be making decisions without the majority being in agreement
[11:38] <rharrison_> hehe this is a common problem
[11:38] <rharrison_> Historically people do suff 'cos they want to then it either get adopted or ignored
[11:39] <rharrison_> But on a shared server with a gole of integration then I would have thought some control / structure my be needed :)
[11:40] <rharrison_> We shall see how it progresses. Anyhow I think it's a good idea to get the site active with the exisitng stuff and take it from there.
[11:41] <rharrison_> I'll check bak in a bit I have some work to be getting on with ...
[11:41] <DanielRichman> ok
[11:41] Nick change: rharrison_ -> rjharrison
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[12:32] <juxta> ping jonsowman
[12:32] <jonsowman> poong
[12:32] <jonsowman> :)
[12:32] <jonsowman> whats up juxta?
[12:32] <juxta> not a great deal, about to setup thr hourly predictor ;)
[12:33] <jonsowman> ah right :)
[12:33] <juxta> the*
[12:33] <jonsowman> excellent
[12:33] <juxta> did you hear back from NOAA?
[12:33] <juxta> or was that someone else that was emailing them?>
[12:33] <jonsowman> no got no reply
[12:34] <jonsowman> but the whole HA system is back online
[12:34] <jonsowman> so has all been working since then afaik
[12:34] <juxta> that's a plus :)
[12:35] <jonsowman> it's not normally that bad
[12:35] <jonsowman> I think they had a bit of a bad few days
[12:35] <juxta> the current hourly predictor is the one in rjw57's git repo, right?
[12:35] <jonsowman> yup just clone that
[12:36] <juxta> clone you say eh
[12:36] <jonsowman> you'll need to change config settings in the bash scripts and the config.py file
[12:36] <juxta> I really should get onto this whole git thing ;p
[12:36] <jonsowman> hehe - firstly have you got git installed on the server?
[12:37] <juxta> haha - neg - i've been resisting for a long time, I just use the archive & download source options from git ;p
[12:37] <jonsowman> what flavour linux?
[12:37] <juxta> oh, ubuntu, I'm sure there's a package
[12:37] <jonsowman> yeh just apt-get install git-core
[12:37] <juxta> I just have used any version control software since SVN ;p
[12:38] <jonsowman> :)
[12:38] <jonsowman> git is good - I like it
[12:38] <jonsowman> then you just
[12:38] <jonsowman> git clone git://github.com/rjw57/cusf-landing-prediction.git
[12:38] <jonsowman> done :)
[12:38] <juxta> awesome, will get onto it
[12:38] <juxta> so what does git offer as opposed to say SVN or similar? (asides from the hosting)
[12:39] <jonsowman> well it's distributed to start with
[12:40] <jonsowman> which is a massive advantage for me as I don't need internets to be able to commit
[12:40] <juxta> oh right, I didn't realise that
[12:40] <jonsowman> and it's *much* faster because of that, and other reaons
[12:41] <jonsowman> and branches are nice in git
[12:41] <juxta> I figured it was just some big code hording company
[12:41] <jonsowman> in svn they're annoying
[12:41] <jonsowman> nope github is just another place you can push/pull from
[12:41] <juxta> yeah I never actually liked svn, i just used it because it was common i guess
[12:41] <jonsowman> but it has a pretty web interface and some other cool things
[12:43] <jonsowman> but you can push/pull to/from anywhere
[12:43] <juxta> yeah, just reading about it now
[12:43] <jonsowman> there's no central server and so nothing is above anything else in terms of hierarchy
[12:43] <juxta> seems I should have given it more of a look earlier on :)
[12:44] <jonsowman> :)
[12:44] <jonsowman> http://www.spheredev.org/wiki/Git_for_the_lazy
[12:44] <jonsowman> bookmark that
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[12:44] <juxta> cheers
[12:44] <jonsowman> this one is also worth reading :)
[12:44] <jonsowman> http://www.eecs.harvard.edu/~cduan/technical/git/
[12:45] <juxta> cheers jonsowman
[12:47] <juxta> wow - that was actually way faster than I expected jonsowman, hehe
[12:47] <juxta> the cloning that is
[12:48] <jonsowman> yep it's pretty quick :)
[12:48] <jonsowman> not that there are any huge files in that repo
[12:49] <juxta> still, quicker than SVN even on with a local server
[12:49] <jonsowman> yup
[12:51] <juxta> ...ignore that 'on' ;p
[12:51] <jonsowman> oh.. i did
[12:51] <jonsowman> hehe
[13:01] <juxta> wow, that generated rather a few warnings on compile
[13:04] <jonsowman> oh dear
[13:05] <juxta> it compiled just fine though
[13:05] <juxta> my scrollback is only 2000 lines - so all I can say is it generated more than 2000 lines of:
[13:05] <juxta> WARN: Do not have two data files around current time. Expect the results to be wrong!
[13:05] <juxta> :)
[13:06] <juxta> now I just have to satisfy the python dependencies :)
[13:06] <jonsowman> excellent
[13:07] <juxta> hmm, python-demjson doesn't seem to be present in the repos for this version of ubuntu
[13:07] <jonsowman> I think Randomskk mentioned there are a couple of oddities in the python data grabber script, meaning it can sometimes bring up errors not actually related to the problem
[13:08] <juxta> alright
[13:16] <jonsowman> bbl
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[14:03] <juxta> predictor seems to be working, just taking a very long time to grab the forecast data
[14:12] <rjharrison> juxta, there is an option to change the window size
[14:13] <rjharrison> somthing like a 3 by 3 grid is best
[14:13] <juxta> yeah
[14:13] <juxta> hopefully won't be too much of an issue given that it''ll be running in the background with cron
[14:14] <juxta> uh oh, it just bailed on me :(
[14:19] <m1x10> hello all :)
[14:29] <juxta> hey m1x10
[14:30] <m1x10> I found a way to save big permanent data on arduino hence free the RAM :)
[14:32] <juxta> using progmem?
[14:32] <m1x10> EEPROM
[14:32] <m1x10> atmega328 has 1kb
[14:33] <m1x10> enough to fit my 515byte sine table for afsk modulation :)
[14:33] <m1x10> 512*
[14:34] <juxta> oh right
[14:34] <Laurenceb> you can write to the unused flash
[14:34] <juxta> yeah, progmem
[14:34] <juxta> keep in mind eeprom has a limited number of write cycles too
[14:34] <m1x10> Laurenceb, I red that reading from EEPROM is more efficient
[14:34] <Laurenceb> but it cant take as many write cycles
[14:34] <Laurenceb> as eeprom
[14:35] <m1x10> juxta, I write the EEPROM just once
[14:35] <juxta> oh right
[14:35] <m1x10> :)
[14:35] <juxta> ping jonsowman
[14:36] <Darkside> m1x10: afsk modulation eh?
[14:36] <Darkside> i'm working on a HF telemetry transmitter based around the AD9835
[14:37] <m1x10> Darkside yeah
[14:37] <m1x10> and I have bought the Radioshield which does afsk demodulation
[14:37] <Darkside> interesting
[14:38] <Darkside> im just using normal amateur radio software for demodulation
[14:38] <m1x10> I will write my own
[14:38] <m1x10> :)
[14:38] <Darkside> heh
[14:38] <m1x10> agwpe?
[14:38] <Darkside> i didn't want to deal with the demodulation stuff for some of the modes im planning on using
[14:39] <Darkside> fldigi mostly
[14:39] <m1x10> what is fldigi ?
[14:39] <Darkside> an awesome multi-mode program
[14:39] <juxta> fast light digital modem
[14:39] <m1x10> which does what?
[14:39] <Darkside> everything
[14:39] <juxta> i think is what it stands for
[14:39] <m1x10> haha
[14:39] <Darkside> an absolute shit-ton of digital modes
[14:39] <juxta> demodulates many modes
[14:39] <m1x10> it can make coffee?
[14:39] <Darkside> its very useful
[14:40] <m1x10> hmm
[14:40] <Darkside> basically i didn't want to get into the DSP side of the demodulation stuff
[14:40] <m1x10> I might take a look
[14:40] <Darkside> i'll have to get into error correction and such if i want to implement MFSK
[14:40] <Laurenceb> http://www.jspec.jaxa.jp/e/activity/ikarosleaflet.pdf <- interesting
[14:40] <Darkside> i'm also planning on implementing some very very low rate data modes, for high reliability operation
[14:41] <Darkside> the aim of my project is to make a telemetry system that you can leave in remote areas, and use ionospheric propogation to get data back from it
[14:41] <Laurenceb> Darkside: its something that needs to be done IMO
[14:41] <Darkside> Laurenceb: there are some that exist
[14:41] <Laurenceb> fldigi is not very suitable for FEC
[14:41] <Darkside> JT63, WSPR, etc
[14:41] <Darkside> some of them seem a bit dodgy
[14:42] <Laurenceb> I've worked out a way to use the Ti CC1020 as a UHF band SDR receiver
[14:42] <Darkside> ooh
[14:42] <Laurenceb> by grabbing some of the "factory test" registers
[14:42] <Laurenceb> over spi
[14:42] <Laurenceb> I've got a couple of eval board from mouser
[14:43] <Darkside> oh wow that chip looks cool
[14:43] <Darkside> a lecturer at uni said i could borrow his USRP sometime
[14:43] <Laurenceb> eventual plan is to construct a usb dongley thing
[14:44] <juxta> hrmm. the hourly predictpr is giving me landing times which are before the launch times. something's not quite right..
[14:44] <Laurenceb> yeah, cc1020 could do what USRP does but on the 434MHz band with about 0.5Hz bandwidth
[14:44] <Laurenceb> IIRC USRP doesnt cover 434MHz very well
[14:45] <Darkside> depends on the daugher board
[14:45] <Darkside> daughter*
[14:45] <Laurenceb> some rather lame TV receiver daughter board?
[14:45] <Laurenceb> haveing said that the cc1020 noise figure isnt that good - 7dB
[14:45] <Darkside> haha yes, it was the TVRX i was looking at
[14:45] <Laurenceb> its help to stick a lna on the front
[14:46] <Darkside> i think he had another transmitter daugherboard too, but i forget which one
[14:46] <russss> you can always use the standard RX and build your own frontend
[14:46] <Darkside> yeah
[14:46] <Darkside> various research students have been using them for radar experiments at uni
[14:46] <Laurenceb> at least 7dB is what I found - Ti just had error rates - I had to write some sim code in matlab and tweak it to get the noise figure
[14:46] <Darkside> passive radar, using DAB transmitters
[14:47] <Laurenceb> oh neat
[14:47] <Darkside> yeah, theres been some pretty cool work done on it
[14:47] <Darkside> i've been offered a research position looking at HF MIMO systems, with applications for radar
[14:47] <Laurenceb> ive seen passive radar with gps
[14:48] <Darkside> and theres also the opportinuty to extend the telemetry system i'm working on
[14:48] <Laurenceb> neat
[14:48] <Laurenceb> fraid I've got to head off, intersting stuff tho
[14:48] <Darkside> i'm attempting to make it use as little power as possible
[14:48] <SpeedEvil> Always fun.
[14:48] <Laurenceb> I'll write try and write up about the cc1020 on the wiki
[14:49] <Darkside> what wiki?
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[14:49] <Darkside> bah
[14:49] <SpeedEvil> the wiki in the topic
[14:49] <Darkside> ah :P
[14:49] <juxta> Darkside, ukhas.org.uk ;)
[14:49] Action: SpeedEvil sighs.
[14:49] <SpeedEvil> I want a nice DAB USB radio.
[14:49] <SpeedEvil> WTF doesn't anyone make one.
[14:50] <SpeedEvil> I have one of these. http://www.radio-now.co.uk/pure_oasis.htm - which is an awesome radio. But.
[14:50] <Darkside> hehe
[14:50] <Darkside> juxta: the aim for my telemetry system was to have it transmit say once per day, for however long it needs to send a chunk of data through
[14:51] <SpeedEvil> I'd love to remove the DAB bits, replace it with a USB reciever, put in a http://bifferos.bizhat.com/ teeny board, add USB wifi, and done
[14:51] <Darkside> but i can easily just change the code to read data from soemthing and transmit constantly
[14:51] <SpeedEvil> http://international.findmespot.com/
[14:51] <Darkside> still need to check the frequency drift of the AD9835
[14:51] <SpeedEvil> Someone has modded these to transmit data - limited amoutns
[14:51] <juxta> oh right, something along the lines of QRSS
[14:51] <juxta> SpeedEvil, yeah, that was natrium42
[14:51] <SpeedEvil> you connect to it and pretend to be a GPS, and encode the data that way
[14:52] <SpeedEvil> not much data - but useful in some cases for a few bytes/day
[14:55] <Darkside> interesting
[15:11] <timbobel> who's got that falcom fsa03 stamp?
[15:13] <timbobel> ..
[15:13] <juxta> timbobel, huh?
[15:15] <timbobel> for in eagle?
[15:15] <timbobel> surely you have got that =D
[15:16] <m1x10> hi timbobel
[15:16] <timbobel> oh hi
[15:16] <juxta> you mean the FSA03 footprint?
[15:17] <timbobel> yeah thats it
[15:23] <griffonbot> @nearsys: Did you know the highest altitude a ZPB has made was 173,000 feet? Big balloon, thin plastic, small payload. #ARHAB [http://twitter.com/nearsys/status/20711640782]
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[19:31] <eroomde> yo
[19:31] <eroomde> jonsowman: ping
[19:31] <Randomskk> eroomde: hi
[19:31] <Randomskk> I got a scope =D
[19:31] <eroomde> hi Randomskk
[19:31] <eroomde> infact
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[19:45] <Wild-Wing> hi
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[20:08] <jonsowman> hi eroomde
[20:08] <jonsowman> hows things?
[20:09] <Randomskk> he is off soldering
[20:09] <jonsowman> ah
[20:09] <Randomskk> but his question was mainly concerned with your new github bug
[20:09] <m1x10> :)
[20:09] <jonsowman> ahh
[20:09] <jonsowman> righto
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[20:10] <jonsowman> james mod'd the binary to support it i believe
[20:10] <jonsowman> so it's just a matter of adding support to the frontend
[20:10] <Randomskk> I think it might be part of scenario.ini or even a command line?
[20:10] <Randomskk> also did you see that nice email we got today
[20:10] <jonsowman> yeh I did
[20:11] <Randomskk> how nice
[20:11] <jonsowman> i will implement saving landing sites in cookies
[20:11] <jonsowman> yeh was very nice :)
[20:11] <jonsowman> float stuff can go in scenario.ini
[20:11] <jonsowman> i'll speak to james about it
[20:11] <eroomde> our old binary supported it too iirc
[20:11] <eroomde> it was certainly there in the okd pred
[20:12] <jonsowman> yeh it was indeed
[20:12] <jonsowman> i don't think rjw's binary supported it
[20:12] <jonsowman> but james modified it for bh5
[20:12] <eroomde> hrm, i didn't think the binary had been much fiddles with. perhaps that's not the case. oh well
[20:12] <Randomskk> I think rjw's does?
[20:12] <jonsowman> oh does it
[20:12] <jonsowman> okay
[20:13] <Randomskk> perhaps not
[20:14] <Randomskk> pred_src in your predictor github does not
[20:14] <jonsowman> right
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[20:28] <m1x10> ping jcoxon
[20:31] <m1x10> ping Randomskk jonsowman
[20:31] <m1x10> ping * :)
[20:32] <Upu> evening
[20:32] <Upu> I'll respond to the wild card
[20:32] <m1x10> hello
[20:32] <m1x10> haha
[20:32] <m1x10> Upu have you ever used a barometer sensor?
[20:32] <Upu> nope
[20:33] <eroomde> m1x10: i have if that helps
[20:33] <m1x10> :(
[20:33] <m1x10> eroomde :)
[20:33] <Upu> I think I looked and they didn't seem much use over a certain altitude
[20:33] <m1x10> check this: http://www.nghobbies.com/cart/index.php?main_page=product_info&cPath=126&products_id=280
[20:33] <eroomde> yu
[20:33] <eroomde> p
[20:34] <m1x10> have u ever used thaT?
[20:34] <Upu> http://www.sparkfun.com/commerce/product_info.php?products_id=9694
[20:35] <m1x10> Upu, I have that
[20:35] <m1x10> but its range is 300-1100mb
[20:35] <Upu> k what are you planning on using it for ?
[20:35] <Upu> alititude ?
[20:35] <m1x10> I want one with less than 300
[20:35] <eroomde> m1x10: not that particular one but similar ones
[20:35] <eroomde> m1x10: you could try the sp1000
[20:35] <m1x10> link?
[20:36] <jonsowman> try the freescale MPX6115
[20:36] <jonsowman> goes down to ~120mb
[20:37] <m1x10> the barometer from sparkfun has too much code to implement plus its 300-1100
[20:37] <jonsowman> MPXH6115A6U to be precise
[20:39] <stilldavid> http://www.flickr.com/photos/stilldavid/4628119077/in/set-72157624101347600/
[20:39] <stilldavid> that's using the SCP1000
[20:40] <stilldavid> while rated to onle 300 mbar, it clearly goes lower. Not sure how accurate they are outside spec, though
[20:40] <m1x10> jonsowman, is this one http://www.freescale.com/files/sensors/doc/data_sheet/MPXA6115A.pdf ?
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[20:41] <m1x10> I cant find the one ending to "6U"
[20:42] <jonsowman> yeh its just a packaging variation
[20:42] <jonsowman> see the 2nd page of that PDF
[20:42] <jonsowman> it's the first of the Super Small Outline ones
[20:42] <jonsowman> but they are all the same sensor
[20:42] <jonsowman> it has /T1 on the end of it in the datasheet
[20:42] <m1x10> SPI interface?
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[20:42] <m1x10> yes jonsowman, found it.
[20:43] <jonsowman> m1x10: no
[20:43] <jonsowman> analogue
[20:43] <m1x10> so it could be simple
[20:43] <m1x10> just analogRead and some formulas maybe
[20:43] <jonsowman> yep just whack it on an ADC
[20:43] <jonsowman> there's an offset and a scaling value
[20:44] <jonsowman> i can give you ours, but you'll need to calibrate against a barometer to get the real values for yours
[20:44] <m1x10> pfff.. the sparkfun one wants extremely much calculations and about 15 variables to work with
[20:44] <m1x10> I have the BMP085 so I can do it I believe
[20:45] <m1x10> I already work it but I want to get rid of it
[20:45] <m1x10> stilldavid
[20:45] <Randomskk> is it bad?
[20:45] <m1x10> you from sparkfun?
[20:45] <Randomskk> or just a lot of code?
[20:45] <Randomskk> jonsowman: so I spent loads more time dicking around with ST libraries and things for selwx last night
[20:45] <m1x10> Randomskk its ok. Its an SPI interface but the algorithm is tooo much.....
[20:46] <Randomskk> decided that for the time being I'm going to leave libopenstm32 out as it's not complete enough to totally replace so we'd just end up with two libraries
[20:46] <jonsowman> Randomskk: righto
[20:46] <jonsowman> seems fair enough
[20:46] <m1x10> Randomskk look
[20:46] <m1x10> short ac1, ac2, ac3;
[20:46] <m1x10> unsigned short ac4, ac5, ac6;
[20:46] <m1x10> short b1, b2, mb, mc, md;
[20:46] <m1x10> long ut, up, x1, x2, x3, b3, b5, b6, b7, p;
[20:46] <m1x10> unsigned long b4;
[20:46] <m1x10> byte msb, lsb, xlsb;
[20:46] <Randomskk> then started considering eth, either uIP or lwIP for IP stacks, uIP is probably easier and smaller but less featureful however both do DHCP and TCP/HTTP
[20:46] <Randomskk> m1x10: I have seen
[20:46] <Randomskk> it is very long
[20:46] <jonsowman> m1x10: see transfer function on the graph at bottom of page 5
[20:46] <m1x10> yeah
[20:46] <m1x10> plus it needs wiring lib to work.. so much code
[20:47] <m1x10> ping stilldavid
[20:47] <Randomskk> jonsowman: but didn't actually do any real ethernet. it remains stupidly complicated
[20:47] <jonsowman> yea it does
[20:47] <Randomskk> did set up a new and apparently all working build environment for ST library
[20:47] <Randomskk> so LEDs are blinking
[20:47] <jonsowman> excekkebt
[20:47] <jonsowman> oh dear
[20:47] <jonsowman> typing fail
[20:47] <Randomskk> earlier (libopenstm32) I got LEDs blinking on the rain/wind sensors
[20:47] <Randomskk> so had a fun afternoon pouring water through the rain sensor while it rested on two cups and watching the LED click as it tipped
[20:47] <m1x10> jonsowman, I cant find a link to buy it. really.
[20:48] <m1x10> the freescale site just takes me to datasheets
[20:48] <m1x10> can u give a link of yours?
[20:48] <jonsowman> give me a sec
[20:49] <jonsowman> m1x10: they will do "free" samples
[20:49] <m1x10> sure :)
[20:49] <jonsowman> "free" in that you have to pay for handling fee
[20:49] <jonsowman> cost me $5 for 2 sensors
[20:49] <m1x10> jonsowman what do u mean?
[20:49] <jonsowman> they are nominally free
[20:49] <jonsowman> but there's a small handling fee
[20:49] <stilldavid> hey m1x10
[20:49] <jonsowman> you're looking for a "SAMPLE" link
[20:50] <m1x10> hi stilldavid
[20:50] <m1x10> want to ask u something
[20:50] <stilldavid> yes, I'm from sparkfun; not trying to push products or anything
[20:50] <m1x10> have u ever had experience with the GSM shield? with SM5100B chip)
[20:51] <Randomskk> jonsowman: https://randomskk.net/u/MAP01.BMP https://randomskk.net/u/MAP02.BMP =D
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[20:51] <stilldavid> m1x10, I haven't played with it yet. thought about putting one on a balloon, but in the US there's laws against it I've heard
[20:52] <m1x10> stilldavid, I have very bad excerience with it. But if you havent try it already you cant help me...
[20:52] <stilldavid> what kind of troubles? can ping tech support or an engineer...
[20:53] <m1x10> the first I bought was burned without obvious reason. Nate from sparkfun told me it was the regulator which should output ~3.8V but for me was outputting 4.0.
[20:53] <m1x10> I bought it again
[20:54] <m1x10> and immediately I measured the output from the regulator. It is still 4.0V
[20:55] <m1x10> Fortunately I removed the power immediately so to avoid another chip burning
[20:55] <m1x10> And now Nate tells me its ok to output 4.0V
[20:55] <fsphil> I don't think an extra 0.2v would burn out a chip
[20:55] <m1x10> You can see my comments at the corresponding page.
[20:56] <m1x10> fsphil me neither. That's Nate's explanation.
[20:56] <m1x10> plus the datasheet says it can take up to 4.2V
[20:57] <stilldavid> yeah, just read N8B's comment to that effect
[20:57] <stilldavid> and the unit doesn't function at all?
[20:58] <m1x10> stilldavid, the first one was burning like hell in 10secs at power. It stopped responding.
[20:58] <m1x10> the 2nd one, I didnt try it.
[20:58] <m1x10> im afraid
[20:58] <m1x10> :(
[20:58] <stilldavid> what kind of power supply are you using?
[20:58] <jcoxon> evening all
[20:58] <m1x10> I dont risk to put the gsm chip
[20:58] <m1x10> wall adapter 2mA max
[20:58] <Randomskk> and you're sure it's not your power supply or environment?
[20:58] <Randomskk> 2mA max? really? what voltage? regulated?
[20:58] <m1x10> 9-12V
[20:59] <m1x10> you can turn a thing on the adapter to change the value
[20:59] <m1x10> 7.5 to 12 I think is the range
[21:00] <m1x10> but the adapter goes to arduino first.
[21:00] <m1x10> gsm shield takes 5V from arduino pin, regulates it to 3.8-4.0
[21:00] <m1x10> then passes it to chip
[21:00] <m1x10> but im afraid to put it again
[21:01] <stilldavid> it gets regulated to 5v correctly on the arduino?
[21:01] <jcoxon> hmmm i've used GSM chips quite a bit
[21:01] <jcoxon> the big issue is that they can draw up to 2A
[21:01] <jcoxon> especially on start up
[21:01] <jcoxon> and lots of regs can't cope with this
[21:01] <m1x10> stilldavid, yes I measured with meter. input voltage to reg is 5v and output is 4.0
[21:02] <m1x10> jcoxon, yes i know
[21:02] <m1x10> at traffic it draws 2A
[21:02] <fsphil> m1x10, is it physically getting hotter? which part?
[21:02] <m1x10> thats why I use external source
[21:02] <m1x10> fsphil the whole SM5100B
[21:03] <m1x10> you can put eggs and potatoes
[21:03] <m1x10> :)
[21:03] <jcoxon> hmmm is anyone affliated with a atmospheric science department?
[21:04] <m1x10> ping jonsowman....I lost you. Can you help me with that sample thing. I dont get it.
[21:04] <Randomskk> it seems http://www.flickr.com/photos/randomskk/4876238449/ :D
[21:04] <Randomskk> s/it seems //
[21:04] <fsphil> *envy* ;-)
[21:04] <m1x10> haha
[21:05] <fsphil> that's sweet
[21:05] <Randomskk> :D I got it today
[21:05] <fsphil> all working well?
[21:05] <Randomskk> yup yup :D
[21:05] <Randomskk> it does all sorts of tricks
[21:05] <Randomskk> https://randomskk.net/u/MAP02.BMP
[21:05] <fsphil> screenshot!
[21:05] <Randomskk> it can save to USB and stuff
[21:06] <Randomskk> and connect directly via USB to do things I don't know about yet, haven't got that far in the book, but I think computer control/dispaly
[21:06] <Randomskk> most importantly though the buttons light up and run/stop is red/green depending on whether it is running or not
[21:07] <fsphil> light-up-ie buttons are a must, yep
[21:07] <fsphil> is it as thin as it looks in the picture?
[21:07] <Randomskk> depends on what it looks like in the picture :P it is fairly thin, one sec
[21:08] <Randomskk> bit shy of 5" total
[21:08] <fsphil> lol -- 5th result in google for Tenma 72-8230 is your picture on flickr
[21:08] <Randomskk> I think the picture is a bit misleading, the back drops off but continues for a little
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[21:08] <Randomskk> hahaha what
[21:08] <jonsowman> m1x10: try the MPXHZ6115A6U
[21:08] <jonsowman> the one we used on Apex appears not to be sample-able
[21:08] <jonsowman> m1x10: http://www.freescale.com/webapp/sps/site/prod_summary.jsp?code=MPXHZ6115A
[21:09] <Randomskk> it does fft and things too :o
[21:09] <fsphil> Well, I know what I'm getting for christmas :D
[21:09] <Randomskk> :D this was my late birthday present, it's so awesome
[21:09] <Randomskk> I got it from farnell, yay free next day delivery
[21:09] <m1x10> jonsowman thank you. Im looking it.
[21:09] <Randomskk> but it seems like it was the best cheapest available
[21:10] <Randomskk> you can save £50 by going down to 40mhz
[21:10] <Randomskk> but that didn't really seem worth it
[21:10] <Randomskk> otoh going up to 100mhz costs a fair bit
[21:10] <fsphil> nah
[21:10] <Randomskk> going for 4ch costs a lot, and getting a non-tenma scope costs lots too
[21:10] <Randomskk> rapid sell some half decent analogue ones, but digital is nice
[21:10] <fsphil> does it come with probes?
[21:10] <Randomskk> it does
[21:10] <Randomskk> two 1/10x
[21:11] <fsphil> nooo.. I've an analogue one, and not being able to pause and snapshot something is a big neg
[21:11] <fsphil> also it's huge
[21:11] <fsphil> nice big clunky switches though
[21:12] <Randomskk> not that I've really used this for anything yet but I love it, it's much nicer than DSOs they have us on in labs at uni
[21:12] <Randomskk> tempted to bring it in my bag
[21:12] <Randomskk> just plug it in and start using it, see if they even notice
[21:12] <Randomskk> the demonstrators tend to be so sleepy anyway
[21:12] <Randomskk> poor grad students
[21:14] <m1x10> jonsowman: http://www.freescale.com/webapp/sps/site/prod_summary.jsp?code=MPXHZ6115A&tab=Buy_Parametric_Tab&fromSearch=false
[21:14] <m1x10> this page now shows 4 of them
[21:14] <m1x10> which one? and then I press the distributor button?
[21:15] <jonsowman> 2nd one
[21:15] <jonsowman> MPXHZ6115A6U
[21:15] <jonsowman> hit Sample
[21:16] <m1x10> I have to register?
[21:17] <jonsowman> probably
[21:18] <Randomskk> blimey
[21:18] <Randomskk> its measure thing has 20 things it can measure
[21:18] <m1x10> ahhhhhhhhh asks for company........
[21:19] <Randomskk> m1x10: make one up :D
[21:19] <m1x10> damn
[21:19] <Randomskk> including overshoot and preshoot, + and -ve duty cycle, etc :D
[21:19] <m1x10> jonsowman do u want to send me that sensor to my home. I pay from paypal.
[21:19] <m1x10> if u have any left...
[21:20] <jonsowman> i don't sorry
[21:20] <jonsowman> only ordered two and we broke one :)
[21:20] <m1x10> haha
[21:20] <m1x10> oki
[21:20] <jonsowman> i sort of trod on it
[21:20] <m1x10> something irrelavant! Just came to my head.
[21:20] <m1x10> Is that crop cicles in UK real?
[21:21] <fsphil> haha, it has a run/stop key -- someone at tenma may have been a c64 fan :)
[21:21] <m1x10> I see many sites hear that those things appear just like that
[21:22] <m1x10> http://thenewsbus.blogspot.com/2010/08/blog-post_09.html
[21:24] <m1x10> hey UK people !
[21:24] <jcoxon> hello
[21:24] <m1x10> jcoxon read above !
[21:25] <jcoxon> hehe
[21:25] <Randomskk> apparently these probes should not be operated in an exlosive atmosphere
[21:25] <fsphil> crop circles are real ... what made them might disappoint though
[21:25] <m1x10> fsphil what do u mean?
[21:26] <fsphil> well, probably just some bloke from down the road :)
[21:26] <m1x10> UK people must fly a balloon above crop cicles and take pics. should be fun :)
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[21:27] <fsphil> I was tempted to have a downward camera
[21:28] <m1x10> I will have many spycams :)
[21:28] <fsphil> though really unless it gets near the coast it will only see fields
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[21:28] <m1x10> top, bottom everywhere!
[21:28] <fsphil> ooh yea, get video the balloon pops
[21:28] <fsphil> +when+
[21:28] <m1x10> yeah
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[21:29] <m1x10> I hope the new GSM module will work. Otherwise I have to think the retro nokia uart phones.
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[21:50] <Laurenceb> Darkside: http://pastebin.com/K0CdRD9Z
[21:50] <Laurenceb> thats for processing cc1020 sampled data back into baseband
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[22:05] <Randomskk> perculiar
[22:05] <Randomskk> my PHY is generating a 40MHz or so clock signal on the RX_CLK line
[22:05] <Randomskk> despite not being clocked itself
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[22:15] <Laurenceb> PHY?
[22:15] <Randomskk> ethernet
[22:16] <Laurenceb> on your ... pc ?
[22:16] <Randomskk> no, pcb I'm working on
[22:16] <Randomskk> if my PC's PHY wasn't being clocked I'd start getting really worried :P
[22:16] <Laurenceb> heh
[22:16] <Laurenceb> whats the pcb for?
[22:17] <Randomskk> remote weather station over ethernet: wind speed/dir, rain, temp, humidity, pressure, light http://www.flickr.com/photos/randomskk/4869375059/
[22:18] <Randomskk> but like, turns out doing ethernet yourself the hardware mac+phy way is quite tricky compared to say an ethernet controller you talk to over spi
[22:18] <Laurenceb> ooh nice
[22:18] <Laurenceb> I spot bmp085
[22:18] <Randomskk> yup
[22:19] <Randomskk> and SHT15 for temp/humidty
[22:19] <Laurenceb> how are you doing wind?
[22:19] <Randomskk> http://www.flickr.com/photos/randomskk/4869237489/ :P
[22:19] <Randomskk> in other words, the sparkfun weather sensor set - gets you wind and rain
[22:19] <Randomskk> via two RJ11 connectors
[22:20] <Laurenceb> ah.. but cheating :P
[22:20] <Randomskk> arguably, so is using the bmp085
[22:20] <Randomskk> or the sht15
[22:20] <Randomskk> depends if you want to make sensors or read sensors really
[22:20] <Laurenceb> whats the little grey thing for?
[22:20] <Randomskk> but I think the ethernet is hard enough to make this a project, I don't need to be making my own wind sensors :P
[22:20] <Randomskk> little grey thing on..?
[22:21] <Laurenceb> the top of the board
[22:21] <Randomskk> on which side?
[22:21] <Randomskk> you might be seeing the light sensor or maybe the switch bootloader/flash
[22:21] <Laurenceb> ah its a light sensor
[22:22] <Randomskk> more photos of it in my photostream, it's a transparent DIP08 case
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[22:22] <Laurenceb> interesting, what sort of output?
[22:25] <Randomskk> frequency
[22:25] <Randomskk> other pins select dividers
[22:25] <Randomskk> and aperture
[22:25] <Randomskk> it has some kind of aperture thing
[22:26] <Laurenceb> probably electronic
[22:26] <Laurenceb> http://www.flickr.com/photos/randomskk/4869910804/in/photostream/ <- ground pads of the xtl arnt part of the gnd flood !
[22:26] <Randomskk> xt doesn't have ground pads
[22:27] <Randomskk> or if it does, ohshitwhat.
[22:27] <Randomskk> but as far as I know that package is two pins for frequency and two pins for ...nothing really
[22:27] <Laurenceb> sparkfun lib
[22:27] <Laurenceb> they are supposed to go the gnd to sheild it, but its not too important
[22:28] <Laurenceb> i fixed the sfe lib so the sheild pads go to gnd
[22:28] <Randomskk> ... maaan
[22:29] <Randomskk> so it is
[22:29] <Randomskk> that's a little annoying
[22:30] <Randomskk> well I mean, I can scope it now (!) and it still makes a 25MHz sine wave
[22:31] <Laurenceb> http://www.kamami.pl/index.php?ukey=category_search&search_with_change_category_ability=1&categoryID=87&search_name=lsm303dlh&search_price_from=&search_price_to=&search_in_subcategory=1&advanced_search_in_category=Znajd%C5%BA
[22:32] <Laurenceb> ^ seen that?
[22:32] <Randomskk> I think I did last night but was watching sherlock at the time
[22:32] <Randomskk> it looks potentially delicious
[22:32] <Randomskk> though leaves me wondering why no one's made a 9 axis yet
[22:32] <Laurenceb> they will soon enough
[22:32] <Randomskk> no doubt
[22:32] <Laurenceb> probably a year or so
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[22:35] <Randomskk> hmm
[22:35] <Randomskk> hopefully this scope will help get my motor controller working
[22:35] <Randomskk> where's it gone now
[22:35] <Randomskk> :( one of the resistors broke off, which is a bit shit
[22:35] <Randomskk> silly board
[22:35] <Randomskk> had too low an impedance on one of the SPI pins used for ICSP
[22:35] <Randomskk> so needed to add some resistors
[22:36] <Randomskk> haha if I just touch the scope probe I conduct perfectly 50hz into it
[22:36] <Randomskk> 7.4V of it!
[22:38] <Randomskk> my room must be totally bathed in 50hz radiation
[22:38] <Laurenceb> most are
[22:38] <Laurenceb> youve got yourself a scope?
[22:39] Action: Laurenceb is going to buy a good quality DSS - just looking for the right one atm
[22:39] <Randomskk> http://www.flickr.com/photos/randomskk/4876238449/
[22:39] <Randomskk> got it today
[22:39] <Randomskk> late birthday present
[22:40] <Randomskk> 60MHz, 500MS/s, 2ch, connects to a PC for data/remote control/viewing traces, can save to usb, 25GS/s time equ sampling, does fft and maths and all that
[22:40] <Randomskk> more to the point several of its buttons light up
[22:40] <Randomskk> has internal memory too, can save/replay traces
[22:41] <Laurenceb> is that "TEMMA" ?
[22:41] <Randomskk> tenma
[22:41] <Laurenceb> aha
[22:41] <Laurenceb> doh the photo title
[22:41] <Randomskk> http://uk.farnell.com/jsp/search/productdetail.jsp?sku=1739444&CMP=i-bf9f-00001000
[22:41] <Laurenceb> not horrible
[22:41] <Randomskk> no
[22:41] <Randomskk> it seemed the best price:qualtiy:features I could find
[22:41] <Laurenceb> - price wise
[22:41] <Laurenceb> features are very good
[22:42] <Randomskk> anything much faster or more capable starts costing a /lot/ more
[22:42] <Laurenceb> yeah
[22:42] <Randomskk> you can save £50 going down to 40mhz and 25mhz is cheaper still
[22:42] <Randomskk> but I'm now working with stuff where 60 is going to be useful, e.g. aforementioned ethernet
[22:42] <Randomskk> £50 saving on £350 didn't seem worth it for 20mhz less
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[22:42] <Randomskk> though btw that £350 is pre-VAT
[22:42] <Laurenceb> http://www.filedump.net/dumped/lbrauto1281390169.zip
[22:43] <Laurenceb> yeah
[22:43] <Randomskk> I think you can get cheaper chinese imports from ebay
[22:43] <Randomskk> especially this one you can hack up the frequency on
[22:43] <Laurenceb> maybe, but that is quite competative with them
[22:43] <Laurenceb> oh nice
[22:43] <Randomskk> but I just went for farnell
[22:43] <Laurenceb> more trustworthy
[22:43] <Randomskk> uh, that mightn't have parsed right - the one I got you can't hack up afaik, there is one on ebay you can
[22:43] <Randomskk> yea
[22:43] <Randomskk> also next day delivery for free
[22:43] <Randomskk> and if it breaks etc
[22:44] <Laurenceb> ^ that zip file is my eagle libs
[22:44] <Randomskk> nice
[22:44] <Randomskk> saved :P
[22:44] <Laurenceb> feel free to enjoy, its a bit messy in places
[22:44] Action: Randomskk rm *#*
[22:45] <Randomskk> but yea my experience so far is that it is quite a nice scope
[22:45] <Randomskk> as nice or nicer than the ones we get in the labs at uni, though as first years we don't exactly play with the most expensive kit
[22:47] <sbasuita> apparently there's a -6 iridium flare tonight where i am
[22:47] <sbasuita> is that worth seeing?
[22:47] <Randomskk> it /sounds/ worth seeing
[22:47] <DanielRichman> Does anyone have any ideas what the ldbl suffix on a shared library "means"?
[22:47] <Laurenceb> if you like getting flashed
[22:47] <sbasuita> i will see it then :)
[22:48] <sbasuita> need to figure out which way the alt/azimuth is
[22:48] <Randomskk> time?
[22:48] <sbasuita> Randomskk: http://www.heavens-above.com/iridium.asp?Dur=1&lat=51.408&lng=-0.756&loc=Bracknell&alt=76&tz=GMT
[22:49] Action: sbasuita breaks out the compass
[22:50] <Randomskk> 10.7km away from me apparently
[22:50] <Randomskk> wait, that's away from you
[22:50] <sbasuita> mmm
[22:50] <sbasuita> just came across this site and that flare happened to be tonight
[22:51] <sbasuita> ah fuck
[22:51] <sbasuita> just realised its cloudy as hell
[22:51] <Randomskk> heavens-above is awesome
[22:51] <Randomskk> great for ISS passes too
[22:51] <sbasuita> :(
[22:51] <russss> it's the perseids this week as well
[22:51] <Randomskk> also it still says 10.7km lol
[22:52] <Randomskk> russss: thursday is it?
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[22:52] <russss> well yeah, it's all this week but the peak is thursday night/friday morning
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[22:56] <Laurenceb> http://www.filedump.net/dumped/autopilot1281390993.zip
[22:56] <Laurenceb> board ^
[22:57] <SpeedEvil1> Any closer to getting a physical version?
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[23:00] <Laurenceb> close to ordering the board.. just need to check over and add a Ti LDO usder the CR1216 holder
[23:01] <Laurenceb> I'm not 100% sure about how i connected the bootload select stuff.. maybe Randomskk can advise
[23:01] <Randomskk> looks very snazzy
[23:01] <Laurenceb> also there a floating pin on the stm32
[23:01] <Laurenceb> the "tamper_rtc" IIRC
[23:01] <Laurenceb> tie to gnd or not?
[23:01] <Randomskk> not needed, can pull it up/down in software
[23:01] <Randomskk> it only does tamper detection if enabled
[23:01] <Randomskk> if you want you can pull it to a level
[23:02] <Randomskk> saves having to do it in the software
[23:02] Nick change: SpeedEvil1 -> SpeedEvil
[23:02] <Randomskk> are you remapping pins?
[23:03] <Randomskk> on mine usart1_tx and usart1_rx are PA9 and P10
[23:03] <Laurenceb> tamper detection = wakes up the micro using the power from the backup bat?
[23:03] <Randomskk> on yours they appear to be PB6 and BP7
[23:03] <Laurenceb> a _lot_
[23:03] <Laurenceb> took ages to work out
[23:03] <Randomskk> do you know if the bootloader will work with remapped usart?
[23:03] <Randomskk> f105/7 or f101/3?
[23:03] <Laurenceb> nope, havent read that far, sorry
[23:03] <SpeedEvil> I doubt it.
[23:04] <SpeedEvil> When the bootloader runs, it's before any user code.
[23:04] <Laurenceb> AIUI everything in the default setting at power up
[23:04] <SpeedEvil> - stm32
[23:04] <Laurenceb> not like AVR say where there a fusebits
[23:04] <Randomskk> in which case how are you planning to bootload it?
[23:04] <Randomskk> I guess hook wires up to PWM_OUT_2 and 3?
[23:05] <Randomskk> (also, you do know eagle has GND and 3v3 supply symbols?)
[23:06] <Randomskk> they auto name any nets they are connected to
[23:06] <Laurenceb> sure, I was very lazy with the schematic
[23:06] <Randomskk> eh, I'd say using them is easier/quicker/lazier :P
[23:06] <Laurenceb> probably
[23:06] <Randomskk> not pulling reset high then? I guess it has an internal pullup?
[23:06] <Laurenceb> it does
[23:07] <Randomskk> it's quite good on internal pullups
[23:07] <Randomskk> all the jtag pins are suitably pulled too
[23:07] <Laurenceb> "10K" with a biased fet
[23:07] <Randomskk> saves some space
[23:07] <Laurenceb> bootloader uart goes to a jst connector
[23:07] <Laurenceb> gnd, 3v3, tx and rx
[23:07] <Randomskk> does it?
[23:07] <Randomskk> I mean, USART1 does
[23:07] <Laurenceb> just below the stm32
[23:07] <Randomskk> but that's remapped?
[23:08] <Laurenceb> oh crap
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[23:08] <Randomskk> that's what I meant by above
[23:08] <Randomskk> but your actual USART1 pins go to PWM_OUT_2 and _3
[23:08] <Randomskk> (I think)
[23:09] <Laurenceb> I'll chec that, thats for the info
[23:09] <Randomskk> bootloader selection appears fine
[23:09] <Randomskk> usually I have a toggle of some kind rather than push button, but I think push button is a better idea and will probably copy that
[23:11] <Laurenceb> thats going to be... fun
[23:11] <Laurenceb> swapping round the pins
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[23:11] <Randomskk> you shouldn't need to
[23:11] <Laurenceb> maybe I should move something
[23:11] <Randomskk> just hook wires to your pwm ones when bootloading
[23:11] <Laurenceb> nah thats rubbish
[23:11] <Randomskk> or write your own small bootloader and have it use the remapped pins, then you just need to program once
[23:12] <Randomskk> (yea, it is)
[23:12] <Laurenceb> yeah thats a fairly neat solution
[23:12] <Randomskk> (personally: use a 6 pin ftdi style header, including dtr--reset)
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[23:12] <Randomskk> (allows the computer to reset the stm32, handy for bootloading code)
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[23:12] <Laurenceb> ah
[23:12] <Randomskk> especially if you get clever and have the DTR line swap it to bootloader mode before/as rebooting
[23:12] <Randomskk> computer asserts DTR while talking to it
[23:13] <Randomskk> so DTR--capacitor--reset pulled high
[23:13] <Randomskk> when DTR drops low, reset goes low to reset the device, then the cap charges through the pullup and the stm32 turns on
[23:13] <Randomskk> if you connected that up somehow to BOOT0 you could probably have it set BOOT0 high at the same time
[23:13] <Randomskk> so you'd just connect and hit program and it'd do it all for you
[23:13] <Randomskk> yum
[23:13] <Randomskk> saves a button on the pcb
[23:13] <Randomskk> (note that I've not done this myself)
[23:14] <Randomskk> otoh a 6pin 0.1" header takes more space
[23:14] <Laurenceb> yes
[23:14] <Randomskk> otooh you can then use standard usb to serial converters
[23:14] <Randomskk> which makes life easy and happy
[23:14] <Laurenceb> maybe that and swap to a 1.25mm molex thingy
[23:15] <Laurenceb> annoying and fibbly in the field tho
[23:15] <Randomskk> this is why I like this 6pin 0.1" thing
[23:15] <Randomskk> it's not very fiddly and it is very standard in that I'm likely to have a convert on hand
[23:16] <Laurenceb> but big
[23:16] <Randomskk> the only thing that tempts me is a ft232rl onboard and mini usb
[23:16] <Randomskk> but that's even bigger
[23:16] <Laurenceb> grr its a lot easier having all the pwm down one side
[23:16] <Laurenceb> in a nice line
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[23:17] <Laurenceb> I could connect to the servo headers
[23:17] <Laurenceb> for serial
[23:17] <Laurenceb> bbl
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[23:22] <Laurenceb> feel free to have a go a swapping the pins around :P
[23:22] <Laurenceb> *at
[23:22] <Randomskk> :P
[23:23] <Randomskk> looks like an excellent board though, just looking briefly
[23:23] <Randomskk> mine never seem to end up quite so high density stuff
[23:23] <Randomskk> well. https://randomskk.net/quad/mc/motor_controller_r4_brd.png is high density but tiny
[23:24] <stilldavid> m1x10, you still around?
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[23:24] <Laurenceb> maybe swapping around the pinout on the jst connector would help
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[23:56] <m1x10> ping stilldavid
[23:56] <stilldavid> hey m1x10
[23:57] <m1x10> whats up?
[23:57] <stilldavid> just talked to one of the engineers who worked on the shield in question...
[23:57] <stilldavid> apparently a batch went out with (you guessed it) the wrong LDO voltage reg chip in place
[23:57] <stilldavid> not sure if you've got one, but email either techsupport@sparkfun.com or returns@sparkfun.com with the board rev and they might be able to help you out
[00:00] --- Tue Aug 10 2010