highaltitude.log.20081231

[00:19] <Laurenceb> gtg
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[08:49] <jcoxon> morning all
[09:22] <corstan> hi
[09:24] <jcoxon> hey corstan
[09:24] <jcoxon> corstan, i think you sent me an email about interfacing a gumstix to a gm862
[09:25] <jcoxon> sorry i haven't replied - had a busy christmas
[09:50] <corstan> yep :)
[09:50] <corstan> I have looked at the gumstix and gpsstix
[09:50] <corstan> and tried to solder wires into the HWUART holes
[09:51] <corstan> I think I broke it
[09:51] <corstan> now I am looking for some other single board computer that doesn't need soldering
[09:51] <corstan> e.g. with RS232, USB hosts, Flash storage etc.
[09:51] <jcoxon> for balloon stuff?
[09:52] <corstan> yes
[09:52] Last message repeated 1 time(s).
[09:52] <corstan> I found this toradex board
[09:52] <jcoxon> you could always use a consolestix thingy from gumstix
[09:52] <jcoxon> which has 3 nice ports
[09:52] <jcoxon> i agree the holes are stupidly tiny on the gumstix
[09:54] <corstan> http://www.toradex.com/Webshop/Product_Selection
[09:54] <corstan> looks tempting to switch
[09:54] <corstan> if I order the telit gm682 with GPS
[09:54] <corstan> then I am all set
[09:55] <corstan> but toradex boards run Windows CE with option for third party OpenEmbedded software
[09:56] <jcoxon> hmmmm
[09:56] <jcoxon> i'm a big fan of gumstix
[09:56] <jcoxon> s
[09:56] <jcoxon> they work very well
[09:56] <jcoxon> and are light so are very good for ballooning
[09:56] <corstan> the USB sensors are nice on that page
[09:56] <corstan> yes, in terms of power and size the gumstix beats toradex
[09:57] <corstan> I am wondering how the toradex boards will cope battery power
[09:57] <jcoxon> urgh, i doubt that way
[09:57] <jcoxon> in regards to your balloon payload, whats your plan?
[09:58] <corstan> one camera for picture (USB), another for video
[09:58] <corstan> GM862 with GPS
[09:58] <corstan> toradex with suitable battery pack
[09:58] <corstan> USB humidity and temperature sensors
[09:58] <jcoxon> and so the camera takes pictures and stores them?
[09:58] <corstan> could be
[09:58] <jcoxon> any form of radio?
[09:59] <corstan> I have to look into that for recovery
[09:59] <jcoxon> because i think you are going overkill
[09:59] <jcoxon> the camera and video can be pretty much independent
[09:59] <jcoxon> camera could be a powershot running chdk (which will automatically take pictures)
[10:00] <corstan> if I ditch gpsstix
[10:00] <jcoxon> you could then program the gm862-gps to send the gps coords
[10:00] <jcoxon> yeah
[10:00] <corstan> how do I connect gm862 to gumstix verdex?
[10:00] <jcoxon> oh in theory you don't even need to
[10:00] <jcoxon> gm862-gps can be programmed
[10:00] <corstan> python yes
[10:01] <jcoxon> so you have a looping python script
[10:01] <corstan> have you done anything python on gm862 already?
[10:01] <jcoxon> that grabs the gps and sends it by sms
[10:01] <jcoxon> yeah
[10:01] <jcoxon> but on the gm862
[10:01] <jcoxon> no the gps version (which is newer and better)
[10:01] <jcoxon> not*
[10:02] <corstan> I have to solder the camera to gumstix?
[10:02] <jcoxon> no no
[10:02] <jcoxon> let me describe a potential payload:
[10:03] <jcoxon> camera - independent with its own battery and custom firmware to take pictures every min
[10:03] <jcoxon> gm862-gps module - gets gps coords of its onboard gps and sends them by sms to you
[10:03] <jcoxon> in theory no gumstix
[10:04] <jcoxon> or another relatively easy option is
[10:04] <corstan> hm, saw the systm episode with chdk as I recall
[10:05] <jcoxon> arduino connected to gps, gm862, temp sensors and perhaps a radio
[10:05] <jcoxon> corstan, we really like chdk, literally jsut turn the camera on and off it goes - very easy
[10:06] <corstan> gotta try
[10:07] <corstan> where would I log temperature data to?
[10:07] <jcoxon> depends what system you were using
[10:07] <jcoxon> the gm862-gps, perhaps a i2c eeprom
[10:07] <jcoxon> its not a walk in the park
[10:07] <jcoxon> but its a really good challenge
[10:08] <corstan> yeah, I wanna see blackness of space
[10:08] <corstan> or the edge of it
[10:08] <jcoxon> :-D
[10:09] <jcoxon> truthfully i recommend going the arduino/avr way
[10:09] <jcoxon> its not easy but much more rewarding and you can do really cool things
[10:09] <jcoxon> also its pretty cheap
[10:09] <corstan> I'll take a look at it
[10:10] <jcoxon> and its how lots of people make their payloads
[10:10] <jcoxon> of and feel free to ask questions on this channel - lots of people have launched balloons here!
[10:10] <jcoxon> of -> oh
[10:11] <jcoxon> corstan, where are you based?
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[10:12] <jcoxon> oops
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[10:19] <jcoxon> morning edmoore
[10:19] <edmoore> hello!
[10:19] <edmoore> all well?
[10:19] <jcoxon> yeah
[10:19] <jcoxon> http://pegasus4.no-ip.org/~jamescoxon/jcoxon.php
[10:19] <jcoxon> it now remebers what the freq is
[10:19] <jcoxon> and updates every 30secs the image
[10:20] <edmoore> very smart
[10:21] <jcoxon> hmmm i think you found a bug :-p
[10:21] <edmoore> very smart indeed
[10:21] <edmoore> post data?
[10:21] <jcoxon> uses POST?
[10:22] <jcoxon> yeah it does
[10:23] <edmoore> what's the bug?
[10:24] <jcoxon> well when you went on to it it reset the freq counter
[10:25] <jcoxon> can you refresh you page and tell me what freq its set to?
[10:25] <edmoore> 647
[10:26] <jcoxon> hmm okay
[10:26] <jcoxon> now?
[10:27] <edmoore> 650
[10:27] <jcoxon> strange
[10:27] <jcoxon> its working fine
[10:28] <jcoxon> before you tested the link i was down at 433.9
[10:28] <jcoxon> and then it jumped back
[10:28] <edmoore> odd
[10:29] <edmoore> it did ask, furst time round, if i wanted to re-send post data
[10:29] <jcoxon> hmmm, its probably something in my dodgey hack
[10:31] <jcoxon> right i've fixed it
[10:32] <jcoxon> edmoore, did you order the stuff from radioworld in the end?
[10:33] <edmoore> trying hamradio.co.uk first now as they seem a teeny bit cheaper
[10:33] <edmoore> need anything?
[10:33] <jcoxon> nah, sadly broke
[10:34] <jcoxon> aren't they quite near to you?
[10:34] <edmoore> hamradio.co.uk? lemme see
[10:35] <jcoxon> chertsey
[10:35] <edmoore> it's a bit far
[10:35] <edmoore> 1hr 10 mins
[10:36] <edmoore> would need an excuse to go
[10:36] <jcoxon> hehe
[10:36] <jcoxon> fair enough
[10:36] <edmoore> gf lives in weybridge but just moved back to stratford so that one's out
[10:37] <jcoxon> stratford london or stratford on avon?
[10:37] <edmoore> london
[10:37] <jcoxon> oh cool
[10:38] <jcoxon> you around on sat?
[10:38] <edmoore> will try and come up, yeah
[10:39] <jcoxon> cool
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[11:04] <Laurenceb> hello
[11:06] <jcoxon> morning Laurenceb
[11:06] <Laurenceb> awful weather
[11:06] <jcoxon> not that bad here
[11:06] <Laurenceb> you can only see about 10 meters
[11:07] <Laurenceb> for the fog, and theres very light snow, but not enough to ski/sledge/snowboard on
[11:08] <Laurenceb> generally sucks
[11:08] <edmoore> right, bbl
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[11:24] <jcoxon> morning RocketBoy
[11:27] <Laurenceb> http://www.scan.co.uk/Products/10-Asus-EeePC-1000-1Gb-40GB-Linux-Blk#ProductFeatures
[11:27] <Laurenceb> ^ very cheap
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[13:19] <SpeedEvil> Quoth the website - 404.
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[13:35] <rjharrison> RocketBoy PM'ed you
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[19:30] <natrium42> hi
[19:56] <SpeedEvil> Hello.
[20:04] <Hiena> Happy new year for all!
[20:04] <Hiena> I'm off to sleep.
[20:04] <SpeedEvil> Indeed.
[20:04] <SpeedEvil> Night.
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[22:18] <Laurenceb> hi everyone
[22:20] <natrium42> ohai Laurenceb
[22:25] <Laurenceb> hi
[22:25] <Laurenceb> http://www.spacex.com/assets/img/123008-longf9shot.jpg
[22:25] <natrium42> whoa nice
[22:25] <Laurenceb> it looks cool... but whos betting it blows up
[22:25] <natrium42> lol
[22:25] <natrium42> don't jinx it :P
[22:26] <natrium42> any idea when they plan to launch it?
[22:29] <Laurenceb> nope
[22:29] <Laurenceb> they still need to finish the launch pad
[22:35] <Laurenceb> bbl
[23:26] <Laurenceb> wow apparently the light snow here is condensation from power station cooling towers
[23:26] <Laurenceb> crazy stuff