highaltitude.log.20060619

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[13:55] <Tiger^> hi, jcoxon ;)
[13:56] <jcoxon> hey Tiger^
[13:56] <jcoxon> hows it going
[14:13] <Tiger^> hmm
[14:14] <Tiger^> aparat from the lack of radio comm
[14:14] <Tiger^> apart*
[14:14] <Tiger^> pretty good
[14:14] <Tiger^> the phone's working
[14:14] <Tiger^> i'm doing a final test now
[14:14] <Tiger^> on lithiums
[14:14] <Tiger^> i'll see how long it runs
[14:16] <mark_fiirestone> i wish i was on lithium... (;
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[15:42] <Tiger^> ok
[15:42] <Tiger^> it's running smoothly for 2:20 now
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[17:42] <icez> phatmonkey, http://icez.org:81/pics/ukhas/
[17:42] <icez> :)
[17:43] <phatmonkey> ooh, very nice!
[17:44] <phatmonkey> simple but sweet
[17:44] <phatmonkey> i've added a bunch of stuff to the wiki - http://wiki.ukhas.org.uk/projects:high_altitude_slug
[17:44] <phatmonkey> we need to think about the theme for the main site
[17:44] <phatmonkey> and try and get a logo in the title meguesses
[17:58] <phatmonkey> jcoxon, what do you use for your gumstix setup?
[17:59] <phatmonkey> i'm quietly considering giving up the slug... :(
[17:59] <phatmonkey> sucks up the power like crazy
[17:59] <phatmonkey> and I don't really need USB anymore
[17:59] <jcoxon> hey phatmonkey
[17:59] <phatmonkey> hey
[17:59] <jcoxon> i have a gumstix connex 200xm
[17:59] <jcoxon> and a gpstix
[17:59] <jcoxon> thats all i'm using
[18:00] <jcoxon> i also have a STUART board (with 2 rs232 ports) and a CFstix
[18:00] <phatmonkey> hmm
[18:00] <phatmonkey> they're not actually that expensive are they
[18:01] <phatmonkey> i've been kidding myself that they cost far too much
[18:01] <jcoxon> just been doing my batteries - i'm running it off 4 AAAs
[18:01] <jcoxon> the gpstix is quite expensive
[18:02] <Tiger^> how much is it?
[18:02] <jcoxon> if you already have a serial gps then just a gumstix and a STUART would be the most basic setup
[18:02] <jcoxon> $130
[18:02] <jcoxon> due to the v. good gps unit
[18:02] <phatmonkey> i would just hook up my garmin to a serial port for gps
[18:02] <Tiger^> is it at least environmetally sealed?
[18:03] <jcoxon> not really
[18:03] <phatmonkey> how much power do all these things draw?
[18:03] <jcoxon> it requries an external antenna
[18:03] <phatmonkey> ah wait, says on the specs
[18:07] <phatmonkey> heh, they're faster than the slug and they have twice the ram
[18:07] <phatmonkey> and they're far smaller
[18:07] <phatmonkey> oh gawd, i'm getting sucked into the world of gumstix
[18:15] <phatmonkey> jcoxon, ideally I need two serial ports and some storage for logs
[18:16] <phatmonkey> I can't seem to work out how to extend the 16mb storage
[18:16] <phatmonkey> ... although that might be enough
[18:16] <phatmonkey> OR 1 serial port, and do away with the arduino
[18:16] <phatmonkey> but then I would need 6 analogue inputs and 2 PWM outputs minimum
[18:17] <phatmonkey> bbiab - food
[18:18] <jcoxon> phatmonkey, easy, get a basix (it has an mmc slot) and then a STUART board to give you the 2 serial ports...
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[18:42] <ehj20> jcoxon: i gather you've made good progress with the radio modem
[18:44] <ehj20> You're using one serial port for gsm, the other for the radio modem, and CF for the gps, is that right?
[18:58] <phatmonkey> jcoxon, actually, i'll need three serial ports
[18:58] <phatmonkey> phone too!
[19:12] <Tiger^> running for 6 hours now...
[19:12] <phatmonkey> http://gumstix.com/spexExpnsion.html
[19:12] <phatmonkey> hmmm
[19:12] <Tiger^> that's about the time i gave up with the previous set of batteries
[19:14] <phatmonkey> robostix has ttl serial ports, 8 ADCs
[19:14] <phatmonkey> and i'm hoping PWM is what I think it is
[19:15] <phatmonkey> can't see any difference between the robostix and robostix-th though
[19:17] <phatmonkey> th seems to come without pins, other with pins
[19:18] <phatmonkey> ah yes - (robostix and robaudiostix have 0.5mm headers, robostix-TH has 0.5mm plated through-holes)
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[19:27] <jcoxon> grrrrrr
[19:31] <jcoxon> bloody gumstix
[19:31] <Tiger^> ok
[19:31] <Tiger^> it runs for six hours
[19:33] <Tiger^> so the batteries have around 3000mAh
[19:33] <Tiger^> had ;>
[19:35] <jcoxon> hehe
[19:36] <Tiger^> and i've discovered a nice feature
[19:37] <Tiger^> or is it a bug?
[19:37] <Tiger^> when they're completely discharged
[19:37] <Tiger^> a ring shows up near the top
[19:38] <Tiger^> or maybe something melted inside. ;)
[19:38] <Tiger^> but they all look exactly the same, so i think it's a feature
[19:39] <ehj20> Have the batteries got warm at all?
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[20:10] <phatmonkey> basix + robostix looks fscking perfect
[20:10] <phatmonkey> sweeet
[20:15] <jcoxon> yay it works
[20:15] <jcoxon> just one more little thing to do
[20:15] <jcoxon> and i'm ready to go
[20:15] Action: Tiger^ too.
[20:15] <Tiger^> i got an idea
[20:15] <Tiger^> i'll fill these battery holders with hot glue.
[20:16] <Tiger^> with the batteries inside, of course ;>
[20:16] <phatmonkey> jcoxon, it'll give me 6 servo outputs, 8 analogue inputs, various GPIO doodahs and 2 serial ports!
[20:16] <phatmonkey> wowza!
[20:16] <phatmonkey> all for around 400 mah
[20:17] <phatmonkey> well, under that according to them
[20:18] <jcoxon> its probably about that
[20:19] <phatmonkey> and it weighs friggin nothing
[20:19] <phatmonkey> i'm buying this...
[20:19] <phatmonkey> are there any uk suppliers?
[20:19] <phatmonkey> i think we'll still call ourselves the high altitude slug project though
[20:19] <phatmonkey> just because slugs are cool :D
[20:20] <jcoxon> you'll have to order from the US
[20:20] <jcoxon> though someone was going to sell theirs
[20:20] <jcoxon> they sent an advert out on hte mailing list
[20:20] <jcoxon> look in the sourceforge logs
[20:21] <phatmonkey> i'll need to get a robostix anyway, i'll just get a new one
[20:22] <phatmonkey> do you have suggestions for lighter phones too?
[20:22] <phatmonkey> the 5110 is a right beast!
[20:22] <jcoxon> okay i'll be back later
[20:22] <Tiger^> no please
[20:22] <jcoxon> byeeeeeeeeeeeeee
[20:22] <Tiger^> don't use modern phones
[20:22] <Tiger^> ;>
[20:22] <Tiger^> the software's pure crap.
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[20:22] <Tiger^> not to mention the RF section.
[20:22] <phatmonkey> i have a 5110 and a siemens gsm terminal
[20:23] <phatmonkey> both are bloody huge...
[20:23] <Tiger^> plus the 5110 uses fbus
[20:23] <Tiger^> not the normal at command set
[20:23] <Tiger^> use a 6310 maybe?
[20:24] <Tiger^> it's a little smaller
[20:24] <Tiger^> the RF section is of course worse than 5110/6110's
[20:30] <phatmonkey> hmms
[20:30] <phatmonkey> i'll experiment with the 5110
[20:30] <phatmonkey> it's just that it's heavier than all the other equipment put together!
[20:30] <phatmonkey> we shall see
[20:31] <phatmonkey> anyone know the user/password for the gumstix svn server?
[20:31] <phatmonkey> tried all the guest combinations, hmm
[20:33] <phatmonkey> ee, gumstix/gumstix works
[22:03] <Tiger^> hmm
[22:03] <Tiger^> what was the url of that site with jetstream predictions?
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[23:20] <Tiger^> ok
[23:20] <Tiger^> payload done
[23:20] <Tiger^> :)
[00:00] --- Tue Jun 20 2006