highaltitude.log.20070425

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[10:27] <edwardmoore> hi jcoxon
[10:29] <jcoxon> hey edwardmoore
[10:31] <edwardmoore> that's damn sexy
[10:32] <jcoxon> i'm just setting up the payload to text it now
[10:32] <jcoxon> so every 3rd will go to zeusbot
[10:32] <edwardmoore> that's so cool!
[10:32] <edwardmoore> can you rename zeusbot as pegV?
[10:32] <jcoxon> too much hassle
[10:32] <edwardmoore> lol
[10:32] <jcoxon> cause zeusbot is registered with freenode
[10:32] <edwardmoore> oh ok
[10:32] <edwardmoore> makes sense
[10:33] <jcoxon> have you checked out what i've put on the wiki?
[10:33] <edwardmoore> bear with me... :)
[10:34] <edwardmoore> ok cool
[10:36] <jcoxon> right phone is working nicely
[10:36] <jcoxon> now to see if it texts zeusbot
[10:38] <edwardmoore> how does it do that?
[10:39] <jcoxon> once sec
[10:40] <jcoxon> i'll explain once it works :-D
[10:40] <jcoxon> nearly there
[10:40] <edwardmoore> this is dangerously cool james
[10:41] <jcoxon> so
[10:41] <jcoxon> the payload texts a sms to email gateway
[10:41] <jcoxon> with the correct format
[10:41] <jcoxon> it then sends the message to zeusmail@nerdshack.com
[10:41] <jcoxon> then everytime you do "!position"
[10:41] <jcoxon> zeusbot reads the pop3 account
[10:41] <jcoxon> parses it
[10:41] <jcoxon> and displays it
[10:42] <edwardmoore> awesome!
[10:43] <jcoxon> just a few more adjustments
[10:43] <jcoxon> one sec
[10:43] <edwardmoore> so on the ground control software you could add an email-to-bot feature aswell?
[10:44] <jcoxon> bingo
[10:44] <edwardmoore> hahaha
[10:44] <edwardmoore> porn
[10:44] <jcoxon> yeah i guess i could
[10:44] <edwardmoore> are we really at 47.8 m here?
[10:44] <jcoxon> i'm not sure ground control is going to ready for this launch
[10:45] <jcoxon> i am in my room
[10:45] <edwardmoore> no sure, but in the future
[10:45] <jcoxon> though alt is always a bit dodgey
[10:46] <edwardmoore> so if we're in the car working off the gps stats, we'll need a net connection?
[10:46] <edwardmoore> or can you just as easily access the emails from a mobile
[10:47] <jcoxon> well only one out of three texts will go to zeusbot
[10:47] <jcoxon> so we'll still receive them
[10:47] <edwardmoore> james that's cunning
[10:49] <jcoxon> right nearly fixed it to also do the google map link
[10:53] <edwardmoore> james do you reckon we should do a sort of pro-active chase?
[10:54] <edwardmoore> i.e. try and be there to see it land
[10:54] <edwardmoore> maybe even catch the event in glorious video
[10:54] <jcoxon> maybe
[10:54] <jcoxon> still working out transport
[10:54] <jcoxon> my father can't come
[10:54] <jcoxon> as they have guests for lunch at 12.30
[10:55] <edwardmoore> right
[10:55] <edwardmoore> might have to beg steve
[10:55] <jcoxon> indeed
[10:55] <jcoxon> or i'll go an get my car
[10:55] <edwardmoore> oh yeah
[10:57] <edwardmoore> http://www.trustedreviews.com/mobile-devices/news/2007/04/24/T-Mobile-Data-Modem-Halves-Vodafone-Prices/p1
[10:57] <edwardmoore> that's be a genuinely useful thing for chases, and if prices keep falling like they do i'd almost certainly get one
[10:59] <jcoxon> yeah
[10:59] <jcoxon> would be goo
[10:59] <jcoxon> d
[11:00] <edwardmoore> if it can be hacked to plug into a wireless router than that would be even better
[11:00] <edwardmoore> we could have wireless internet in whatever field we wanted
[11:01] <edwardmoore> did you throw it out the window or something?
[11:01] <jcoxon> hehe
[11:01] <jcoxon> no
[11:01] <jcoxon> but i'm trying to work out how to actually delete some of the messages
[11:03] <jcoxon> oops
[11:03] <jcoxon> might have crashed the email server
[11:03] <edwardmoore> :)
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[11:21] <edwardmoore> most yummy
[11:21] <edwardmoore> can i peek at peg V sometime today?
[11:21] <jcoxon> sure
[11:22] <jcoxon> i'm in all day
[11:22] <jcoxon> and avoiding writing my dissertation
[11:22] <edwardmoore> coolio. Need to go into town today so I may wonder down
[11:22] <edwardmoore> lol
[11:22] <jcoxon> i hate my disseration
[11:22] <jcoxon> made loads of progress in the past 2 days
[11:22] <jcoxon> have now lost hte motivation
[11:22] <jcoxon> less time pressure
[11:23] <edwardmoore> it's easier like that
[11:23] <edwardmoore> it's kinda like watching a stalling wing float down to the ground, if you see what i mean
[11:23] <edwardmoore> it builds up speed then stalls, then builds up speed again then stalls.
[11:23] <edwardmoore> maybe I should pick less geeky references
[11:23] <jcoxon> yeah
[11:23] <jcoxon> haha
[11:23] <jcoxon> right compass time
[11:27] <edwardmoore> is it an spi interface?
[11:30] <jcoxon> i2c
[11:36] <jcoxon> haha
[11:36] <jcoxon> i'm such an idio
[11:36] <jcoxon> t
[11:36] <edwardmoore> whatcha done?
[11:37] <jcoxon> spent 5 mintes drting to work out why the compass wasn't working
[11:37] <jcoxon> i was plugged into teh wrong gumstix
[11:37] <edwardmoore> D'oh
[11:37] <jcoxon> still on my native compiler stix
[11:44] <edwardmoore> are you cutting down jcoxon or letting nature take its course?
[11:44] <jcoxon> both
[11:44] <jcoxon> only if it strays
[11:45] <edwardmoore> cool
[11:46] <edwardmoore> do you know what sort of altitude you want to shoot for?
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[11:47] <jcoxon> umm not to fussed
[11:47] <jcoxon> a bit worried about the quality of my balloon
[11:48] <edwardmoore> do you know if anyone else has a good'n?
[11:52] <jcoxon> henry has a 350
[11:56] <edwardmoore> http://cgi.ebay.co.uk/Weather-Balloon-Meteorological-Military-Huge-Giant_W0QQitemZ230120655423QQihZ013QQcategoryZ588QQssPageNameZWDVWQQrdZ1QQcmdZViewItem#ebayphotohosting
[11:56] <edwardmoore> £10 each... although UK shipping is about the same again for each one
[11:56] <edwardmoore> 2200g balloons
[12:03] <edwardmoore> right i might give you a bell later
[12:03] <edwardmoore> cya
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[14:01] <edwardmoore> jcoxon, would it be ok go pop in about 4ish?
[14:05] <jcoxon> edwardmoore, yup thats fine
[14:05] <edwardmoore> coolies. how's it going?
[14:05] <jcoxon> having cameras issues
[14:05] <jcoxon> right will bbl
[14:07] <edwardmoore> ok
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[18:05] <edwardmoore> l
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[19:12] <edwardmoore> are you back jcoxon?
[19:14] <jcoxon> am now
[19:15] <edwardmoore> coolio
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[19:21] <edwardmoore> do you know your bananas with openWRT?
[19:21] <jcoxon> yup
[19:22] <jcoxon> i hacked one up to be a payload?
[19:22] <edwardmoore> oh cool
[19:23] <edwardmoore> do you know off the top of your head which linksys ones are compatible?
[19:23] <jcoxon> nope
[19:23] <jcoxon> but
[19:24] <edwardmoore> don't worry found the supported hardware table
[19:24] <jcoxon> they have a table of hardware
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[20:12] <jcoxon> camera done :-D
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[23:04] <mc-> hi rocketboy, thanks for the email. I doubt it will be on the same frequency and interfere with jcoxon's payload
[23:04] <rocketboy> yeah - it would be a bit unlucky
[23:06] <mc-> what's the receiver bandwidth?
[23:07] <mc-> the PC should reduce the bandwith to a few hundred Hz?
[23:08] <mc-> I've bought some chutes, but can't send them to you until next week.
[23:08] <rocketboy> yep the reciver is ssb (2.4KHz) and the morse software has an audio filter of a couple of hundrd Hz
[23:09] <rocketboy> No probs - we are using JCs chute - combined payload weight is 500g
[23:12] <mc-> roughly how much weight would a 18" chute carry? http://www.aeroconsystems.com/chutes/phex.htm
[23:14] <rocketboy> 250g
[23:15] <rocketboy> its more of a droge by the look of it
[23:15] <mc-> what descent speed do you assume? I guess it can be higher than a rocket, since the payload is robust
[23:15] <rocketboy> fairly substantually made
[23:16] <mc-> http://www.aeroconsystems.com/tips/descent_rate.htm
[23:17] <rocketboy> yep - say 8oz
[23:18] <rocketboy> 18" = 5.29m/sec (a bit fast)
[23:19] <rocketboy> aim for 3.5 to 4.5m/sec - see http://wiki.ukhas.org.uk/guides:parachute_sizing_chart
[23:20] <mc-> thanks, also I got a 36" chute
[23:21] <rocketboy> James 36" chute will give approx 3.5m/sec descent rate for 500g
[23:21] <rocketboy> a bit slow - but not too much
[23:21] <mc-> I prefer a fast descent so it can drift too far.
[23:22] <mc-> *can't
[23:23] <rocketboy> yeah - but not too fast that it will break somthing KE proportional to V^2
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[23:46] <rocketboy> night all
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[00:00] --- Thu Apr 26 2007