highaltitude.log.20110518

[00:00] <natrium42> o/
[00:01] <Randomskk> natrium42: home?
[00:02] <natrium42> yep!
[00:02] <Randomskk> :D
[00:02] <natrium42> how are you?
[00:02] <Randomskk> hope you enjoyed your trip :P
[00:02] <Randomskk> I'm good
[00:02] <SpeedEvil> Back in the C...
[00:02] <SpeedEvil> hmm.
[00:02] <SpeedEvil> :)
[00:02] <natrium42> yes, it was fun
[00:02] <Randomskk> first formal dinner of term, and tomorrow I even get a bit of a lie in!
[00:02] <SpeedEvil> Long flight back I guess?
[00:03] <natrium42> 8 hours
[00:03] <natrium42> not awfully long
[00:03] <natrium42> cool
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[01:05] <W0OTM> howdy!
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[04:12] <KF5KWE> W0OTM, howdy
[04:13] <KF5KWE> my kickstarter project was decline :(
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[05:48] <SamSilver> bbl
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[07:36] Action: griffonbot is GriffonBot [http://github.com/ssb/griffonbot]
[07:36] Action: griffonbot is following: #arhab #ukhas #cusf #atlasballoon
[07:36] Action: griffonbot is tracking emails sent to ukhas@googlegroups.com
[07:38] <griffonbot> Received email: Chris Foote (Spike) "Re: [UKHAS] Dream Payload"
[07:43] <griffonbot> Received email: Philip Heron "Re: [UKHAS] Dream Payload"
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[08:38] <griffonbot> @jamescoxon: Payload up tree, has moved a bit #atlasballoon [http://twitter.com/jamescoxon/status/70770258239160320]
[08:55] <griffonbot> Received email: Graham GW8RAK "[UKHAS] Re: Dream Payload"
[09:19] <russss> http://www.ustream.tv/nasahdtv
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[09:29] <GW8RAK> A lot of mission control staff look very bored russss
[09:51] Chingy (8afa070b@gateway/web/freenode/ip.138.250.7.11) joined #highaltitude.
[09:51] <Chingy> Hi all :)
[09:54] <Chingy> has anyone used a lassen iq gps chip ?
[09:57] <fsphil> A few have yea, not me personally though
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[10:04] <Chingy> ok
[10:04] <Chingy> i have been told that the pins are hard to access, and that it's usually easier to get a cable
[10:04] <Chingy> but i can't find the name of the connector
[10:06] <jonsowman> Chingy: http://www.dpieshop.com/trimble-iqsq-data-cable-to-flying-lead-way-125mm-pitch-p-238.html?osCsid=f4c98f08e5d58e37cb660199cfb2808f
[10:06] <jonsowman> flying lead
[10:06] <jonsowman> can also get pcb headers if you prefer
[10:07] <jonsowman> it's just a 2x4 0.05" pitch header
[10:07] <Chingy> thanks :)
[10:07] <jonsowman> np
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[11:49] <NigeyS> http://bellard.org/jslinux/
[11:50] <fsphil> bellard strikes again. love it
[11:50] <NigeyS> :D funky stuff
[11:50] <fsphil> just need to get it to run firefox.. then load up that page ....
[11:50] <NigeyS> heh
[11:52] <fsphil> was gonna say he should have put gcc on there, but he's got tcc
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[11:55] <KF5KWE> ifconfig
[11:55] <KF5KWE> woops
[11:55] <NigeyS> lol
[12:07] <Elwell> KF5KWE: Password:
[12:07] <Elwell> (worth a shot :-)
[12:07] <KF5KWE> aligator6
[12:07] <KF5KWE> DANGIT
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[12:12] <jgrahamc> Hello
[12:19] <fsphil> letmein
[12:20] <jgrahamc> Hmm. Is that your password fsphil?
[12:21] <fsphil> nope, but it's bound to be someones :)
[12:23] <fsphil> my headphones just fell apart. now I've nothing to protect me from the sounds of the office
[12:27] <fsphil> well the prediction is now on solid ground, just the worse possible place: http://habhub.org/predict/#!/uuid=ffa4f777fc5b1314eb902ef8eb1ec09aac0c6304
[12:33] <Randomskk> fsphil: haha just what you want
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[12:37] <fsphil> that prediction assumes 33km, which most definitely won't happen
[12:38] <fsphil> heh, earlier burst puts it further east. weird
[12:52] <NigeyS> A man has been captured on CCTV trying to board a train accompanied by a pony.
[12:52] <fsphil> as you do
[12:52] <NigeyS> only in wales could that ever happen lols!
[12:53] <jonsowman> :\
[12:53] <NigeyS> http://www.bbc.co.uk/news/uk-wales-13437279
[12:56] <BrainDamage> he could have chopped the pony, so it'd have fit multiple animal boxes
[12:57] <BrainDamage> I guess re-assembling would've been a problem though
[12:58] <NigeyS> why didnt he just ride the pony......
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[13:05] <fsphil> I wonder how jcoxon vs. nature got on
[13:05] <Dan-K2VOL> Hehe
[13:05] <Dan-K2VOL> I saw his departure tweet while i was still up last night
[13:05] <Dan-K2VOL> And thought - it's time to go to bed
[13:06] <fsphil> aah late night
[13:07] <fsphil> there's been no word since then
[13:07] <fsphil> the tree might have other ideas
[13:07] <Dan-K2VOL> Hmm
[13:07] <Dan-K2VOL> Well, is his spot still transmitting? :-P
[13:10] <fsphil> stopped working last night
[13:10] <fsphil> last entry is "17 May 2011 23:08:49"
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[13:51] <KF5KWE> since trying to make a miniature space box this is what my desk looks like
[13:51] <KF5KWE> http://dl.dropbox.com/u/12996303/hab%20pics/IMG_1012.JPG
[13:52] <KF5KWE> chips belong there :(
[13:58] <griffonbot> @jamescoxon: Recovered, #atlasballoon [http://twitter.com/jamescoxon/status/70850794425036802]
[13:59] <NigeyS> wahey nature - 0 james - 1
[13:59] <jgrahamc> Yay!
[14:01] <Dan-K2VOL> Nice!
[14:05] <fsphil> lol
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[14:08] <W0OTM> hello world
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[14:09] Nick change: rambo -> kd0mto
[14:11] <kd0mto> W0OTM: The only works for programs
[14:12] <W0OTM> kd0mto: :)
[14:12] <kd0mto> morning!
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[14:14] <W0OTM> Dan-K2VOL: im launching tomorrow night. using 36" latex party balloons
[14:14] <Dan-K2VOL> Nice
[14:14] <Dan-K2VOL> Cheap?
[14:14] <W0OTM> Dan-K2VOL: oh yeah
[14:14] <Dan-K2VOL> how've you calcuclated how much to inflate them
[14:14] <W0OTM> Dan-K2VOL: about $2 each
[14:15] <fsphil> W0OTM, quicky question - what radio did you fly on your repeater?
[14:15] <W0OTM> Dan-K2VOL: I have a chart from the manufacturer that tells me how much weight each one will lift. I have a water ballast that I will fill each ballon up to.
[14:16] <Dan-K2VOL> That's nice of the manufacturer!
[14:16] <Dan-K2VOL> Unusual for a party balloon
[14:16] <W0OTM> fsphil: I use the Alinco DJ-C7
[14:16] <Dan-K2VOL> do they have a listed burst altitude?
[14:16] <mattltm> Hi all :)
[14:16] <W0OTM> Dan-K2VOL: No, thats what I plan to assemble with test flights
[14:17] <fsphil> W0OTM, thanks
[14:17] <kd0mto> W0OTM: I'll be watching, I'm bored in Chicago so make sure to post the tracking data.
[14:17] <Dan-K2VOL> ahh gotcha. Keep in mind that with multiple balloons when one bursts, if they're all roughly inflated the same, the concussion will cause a chain reaction of bursting
[14:18] <W0OTM> kd0mto: I will webcast the whole launch
[14:18] <kd0mto> sweet!
[14:18] <W0OTM> kd0mto: also here is the new tracking site : http://www.ihabproject.com/Tracker/?vehicle=&mission_id=iHAB-5
[14:18] Action: kd0mto looks
[14:19] <W0OTM> Dan-K2VOL: yes, we plan to vertically space them out
[14:19] <W0OTM> Dan-K2VOL: Im not after any HIGH ALT records, just wanting to get my payload up to 30K feet for some low alt testing
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[14:21] <kd0mto> W0OTM: I like it
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[14:22] <W0OTM> kd0mto: thanks
[14:23] <W0OTM> kd0mto: did you watch the launch from Peoria?
[14:24] <W0OTM> kd0mto: the Peoria Amateur Radio Club
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[14:27] <kd0mto> No, I didn't get a chance. I've been busy with dealing with the girlfriend as I just took my job in Chicago (she's still back home in Pennsylvania)
[14:32] <KF5KWE> hams unite!
[14:33] <KF5KWE> W0OTM, hyrdogen or helium? and whats the costs on the launch? just curious, planning my own launch
[14:34] <W0OTM> KF5KWE: He, there are alot of variables that go into "cost" of a launch
[14:34] <KF5KWE> Well I mean the consumed costs, fuel, balloons, mainly
[14:35] <KF5KWE> Gas milage factors in, in these times, too
[14:35] <W0OTM> KF5KWE: $100-$200
[14:35] <W0OTM> KF5KWE: depends on how much gas costs in your area
[14:35] <KF5KWE> ah
[14:36] <W0OTM> KF5KWE: I have an awesome relationship with my local supplier, so gas for me is REALLY cheap
[14:36] <KF5KWE> oh...
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[14:36] <W0OTM> KF5KWE: my launch tomorrow will only cost me about $25 (balloons and gas)
[14:36] <KF5KWE> wtf
[14:36] <KF5KWE> Okay you have a secret somewhere don't you
[14:37] <W0OTM> No
[14:37] <W0OTM> I just think outside the box
[14:37] <W0OTM> not afraid to fail
[14:37] <W0OTM> to me, thats apart of the hobby
[14:37] <KF5KWE> To me, I'm broke
[14:37] <W0OTM> KF5KWE: understand
[14:37] <KF5KWE> Other than that I have lots of....ideas, not paying the bills with ideas though
[14:38] <W0OTM> KF5KWE: I just bought 3 600g balloons for $70 delivered
[14:38] <W0OTM> KF5KWE: thats a HELL of a deal!
[14:38] <KF5KWE> howw....?
[14:38] <KF5KWE> I'm looking at 70 for ONE 500g
[14:38] <W0OTM> KF5KWE: got them from a retired ham
[14:39] <KF5KWE> ohh
[14:39] <W0OTM> KF5KWE: where you from?
[14:39] <KF5KWE> Central texas
[14:39] <W0OTM> KF5KWE: I can get 500g NEW for $45
[14:40] <KF5KWE> Shipping incl?
[14:40] <KF5KWE> Scientificsales is 57.74 for a 500g shipped
[14:40] <W0OTM> yup
[14:40] <W0OTM> thats the best place
[14:40] <KF5KWE> heh, well at least I did something right :P
[14:41] <KF5KWE> Still, dang, good deal you got there
[14:41] <W0OTM> stay away from Kaymont!!!
[14:41] <KF5KWE> You got burned?
[14:41] <W0OTM> No
[14:41] <W0OTM> never ordered from them before
[14:42] <KF5KWE> bad stories?
[14:43] <W0OTM> after the 2 kids from MIT made the mainstream media with their "$200 space launch"
[14:43] <W0OTM> Kaymont is just rude!
[14:44] <KF5KWE> Ah
[14:44] <KF5KWE> Bad PR isbad
[14:44] <W0OTM> the kids mentioned Kaymont in their press interviews
[14:44] <KF5KWE> ouch
[14:44] <KF5KWE> Never should have mentioned them if they didn't sponsor
[14:46] <KF5KWE> Hey on a related note, for a single 500g balloon, i think im looking at 1.3-1.8m cubed helium, around 50ft cubed, thats like 1/4th of a K tank form what I can gather, is there a more reasonable tank size thats common I should ask about renting?
[14:57] <W0OTM> KF5KWE: whats your payload weight?
[14:57] <KF5KWE> No clue yet, it's only got a tracker, sensorboard, batteries, and a camera
[14:58] <W0OTM> KF5KWE: ok, lets "guess" 1000g
[14:58] <KF5KWE> Probably below 500g
[14:58] <KF5KWE> Ok..
[14:58] <KF5KWE> Hehe you know better
[14:58] <KF5KWE> http://www.srcf.ucam.org/~cuspaceflight/calc/
[14:58] <KF5KWE> says i need 76.6 ft cubed
[14:59] <W0OTM> what ascent rate you put in?
[14:59] <KF5KWE> 4.5
[14:59] <KF5KWE> manually put in the burst diameter form scientificsales website
[15:00] <W0OTM> I calculated 5.7m/s (1029ft/m) - 90.84cu/ft of He
[15:00] <W0OTM> you will burst at 76,000ft
[15:00] <W0OTM> (calculated)
[15:00] <KF5KWE> kind of low
[15:01] <KF5KWE> Compared to other project I mean
[15:01] <W0OTM> shutup zeusbot LOL
[15:01] <KF5KWE> well im not going for any records
[15:02] <KF5KWE> doesnt a "large" tank hold around 200ft cubed helium?
[15:02] <KF5KWE> best I can gather
[15:03] <W0OTM> KF5KWE: depends on your supplier.
[15:03] <W0OTM> KF5KWE: where you planning on getting your He from?
[15:03] <W0OTM> What company?
[15:03] <KF5KWE> At this point I haven't called anywhere yet
[15:03] <KF5KWE> But there is a Praxair close by
[15:03] <W0OTM> Praxair goes by K sizes
[15:03] <W0OTM> I mean letter sizes
[15:04] <W0OTM> Airgas goes by volume
[15:04] <KF5KWE> http://en.wikipedia.org/wiki/Gas_cylinder#Sizes
[15:05] <W0OTM> that chart wont do you any good, cause each company fills their tanks differently
[15:05] <KF5KWE> so will they be able to tell me how much He they put in?
[15:05] <W0OTM> ex: Airgas sells a 150 size tank....that does match anything form that chart
[15:07] <W0OTM> KF5KWE: and just because you may have a K tank from Prax, they may under fill it
[15:07] <W0OTM> KF5KWE: or overfill
[15:07] <KF5KWE> so yours saying its best to just get the K size because it will almost certainly have enough?
[15:07] <W0OTM> in your case, a K tank should be fine. 135cu/ft (according to wiki)
[15:08] <W0OTM> yes
[15:08] <W0OTM> you will be SHOCKED at the prices at Prax
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[15:08] <KF5KWE> =/
[15:08] <W0OTM> I would be curious to know how much they sell it for
[15:09] <W0OTM> Dan-K2VOL: where you get your gas?>
[15:09] <Dan-K2VOL> Praxair
[15:09] <W0OTM> Dan-K2VOL: how much you pay? size?
[15:09] <Dan-K2VOL> We get it free for White Star due to the promotional deal we have with them
[15:09] <Dan-K2VOL> T-tanks, two per flight
[15:09] <Dan-K2VOL> 291 cu ft
[15:10] <W0OTM> Dan-K2VOL: ahh ok
[15:10] <Dan-K2VOL> the balloon only takes one, but we have a backup balloon and backup helium
[15:10] <W0OTM> KF5KWE: LOL, see T-tank isnt even on the wiki chart.....
[15:10] <Dan-K2VOL> SpacePort Indiana arranged that deal. You guys should consider working with your local spaceports, if there are any around
[15:11] <KF5KWE> yeah...
[15:11] <W0OTM> KF5KWE: there is no real standard :)
[15:11] <W0OTM> Dan-K2VOL: I get gas crazy cheap
[15:11] <Dan-K2VOL> oh how's that
[15:11] <W0OTM> Dan-K2VOL: came as you
[15:11] <W0OTM> same*
[15:12] <W0OTM> Dan-K2VOL: plus, imma sexy man!
[15:12] <Dan-K2VOL> I've compiled a list of the tanks that are available around KY IN TN: http://wiki.whitestarballoon.com/doku.php?id=compendium#cylinders_tanks
[15:12] <W0OTM> Dan-K2VOL: the ladies at the supplier LOVE me
[15:12] <Dan-K2VOL> Oh, you slip em a little somethin somethin when you drop by?
[15:12] <Dan-K2VOL> :-P
[15:13] <W0OTM> KF5KWE: Dan-K2VOL makes a goos point, its ALWAYS a good idea to have a second cylinder available
[15:13] <Dan-K2VOL> That link I posted also explains the stamped markings in the tank
[15:14] <KF5KWE> Awesome
[15:15] <Dan-K2VOL> Do thos figures match what you guys have seen?
[15:16] mattltm (~mattltm@81.134.144.179) left irc:
[15:16] <W0OTM> http://ukhas.org.uk/guides:balloon_data
[15:16] <Dan-K2VOL> Nice
[15:17] <Dan-K2VOL> but the letters are certainly not a match
[15:18] <W0OTM> Dan-K2VOL: I know, thats why I don't believe there is a real standard. It all depends on where you buy from
[15:18] <Dan-K2VOL> Does where you buy from match my chart
[15:18] <W0OTM> Dan-K2VOL: No, doesn't match any chart I have ever seen
[15:19] <W0OTM> Dan-K2VOL: I get a "150cu/ft tank"
[15:19] <W0OTM> Dan-K2VOL: I can't say it fits anywhere in your chart
[15:19] <W0OTM> Dan-K2VOL: if you look at Capacity or 10% overfill
[15:20] <Dan-K2VOL> I believe the tank markings are standardized, at least in the US
[15:20] <Dan-K2VOL> ok
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[15:21] <Dan-K2VOL> Check your next tank to see if it has such markings if you could
[15:21] Action: Laurenceb hi 5s Randomskk
[15:21] <Dan-K2VOL> Im' curious
[15:21] <W0OTM> thats where I just resolved to finding out what my local suppier sells
[15:21] <Laurenceb> stm32 works XD
[15:21] <Laurenceb> serial upload is awesome
[15:22] <Randomskk> it's super awesome
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[15:22] <Randomskk> I've been playing with ChibiOS on mine, it's really really cool
[15:22] <Laurenceb> interesting
[15:22] <W0OTM> Dan-K2VOL: there is markings everywhere on the tank, which ones to you want
[15:22] <Randomskk> threads and stuff very easily plus their own HAL so no touching the crap ST libs
[15:22] <Laurenceb> i was planning to avoid an rtos
[15:22] <Randomskk> really liked it so far
[15:22] <Randomskk> I've never used one before but this was super easy
[15:22] <Laurenceb> but maybe its sane to try one
[15:23] <Randomskk> https://gist.github.com/975629
[15:23] <Laurenceb> i didnt fry the cp2102 either which was kind of good
[15:23] <Dan-K2VOL> Haha
[15:23] <Laurenceb> looks simpleish
[15:23] <Dan-K2VOL> W0OTM they would be stamped into the metal, likely near the top
[15:23] <W0OTM> Dan-K2VOL: yes, I have LOTS
[15:24] <Dan-K2VOL> Zuph is trying out some RTOSes for the STM32 as well
[15:24] <Dan-K2VOL> He said something was odd with the chibiOS though that soured him on it
[15:24] <Dan-K2VOL> He'd have the detail
[15:24] <Laurenceb> -using the cp2102 in 'level shifting' mode
[15:24] <Dan-K2VOL> Well, see if they match the ones mentioned here: http://wiki.whitestarballoon.com/doku.php?id=compendium#cylinders_tanks
[15:25] <Dan-K2VOL> 2nd parag after the chart
[15:26] <Randomskk> Laurenceb: it seems really really easy to make threads and communicate between them
[15:26] <Randomskk> and it manages everything for you nicely
[15:26] <Randomskk> plus their HAL is a lot better than ST's libs, though their makefile does let you use ST's libs too
[15:27] <Randomskk> only downside: their HAL doesn't have an STM32 I2C driver, so you'd have to use the libs for that
[15:27] <Laurenceb> ok
[15:28] <Laurenceb> im not 100% sure how an rtos would help me massively
[15:28] <Laurenceb> most of the problems are with hardware interfacing
[15:28] <Laurenceb> i only need two threads ideally
[15:28] <Randomskk> it does that nicely. plus HAL
[15:29] <Laurenceb> can you e.g. wake thread on some hardware event?
[15:29] <KF5KWE> I've priced it out, where if I could somehow order the parts 10 at a time, I can make a complete ARPS system(gps, modem, radio) for $70
[15:29] <KF5KWE> otherwise for a single unit it's 110
[15:30] <Randomskk> Laurenceb: yea I believe so, it has very good interrupt support/integration
[15:30] <Laurenceb> ok ill have to have a look
[15:30] <Dan-K2VOL> Yeah, the Byonics trackers are a good deal
[15:30] <KF5KWE> byonics? a good deal?
[15:30] <KF5KWE> bah
[15:30] <Dan-K2VOL> Quite so
[15:30] <KF5KWE> i refuse to believe that
[15:30] <Dan-K2VOL> When you factor in the value of your time
[15:31] <KF5KWE> Well you see, my time is worthless
[15:31] <KF5KWE> Good sir
[15:31] <Dan-K2VOL> ah well, then you should be making things from raw silicon at that rate
[15:31] <griffonbot> Received email: Lee West "[UKHAS] Cold Batteries and Payload hardening?"
[15:31] <KF5KWE> Plus it's like 10 minutes of soldering ea + a quick flash of the modem chip
[15:31] <Dan-K2VOL> What radio?
[15:31] <KF5KWE> HX1
[15:32] <KF5KWE> Radiometrix
[15:33] <Dan-K2VOL> and the modem?
[15:33] <KF5KWE> an atmel atmega328 programed with modified "trackuino" code
[15:33] <KF5KWE> 16mhz crystal and some load caps
[15:34] <Dan-K2VOL> Well, byonics used to be a good deal when they used the HX1
[15:34] <Dan-K2VOL> Seems he's discontinued that
[15:35] <Dan-K2VOL> It was about $100 if i recall
[15:35] <KF5KWE> yeah
[15:35] <KF5KWE> 100$ not including gps
[15:35] <KF5KWE> radio is $44 @ 10, 50$ @ 1
[15:35] <KF5KWE> the pic they used on those is almost worthless :P
[15:36] <KF5KWE> need lots of external components, etc
[15:37] <KF5KWE> price breaks on mcu @ 10 are a steal
[15:39] <KF5KWE> i could probably get the code under 8kb
[15:40] <KF5KWE> So a cheaper chip could be used
[15:41] <KF5KWE> the 168 isn't priced @ 10 though its at 25
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[15:45] <W0OTM> KF5KWE: I use Opentracker
[15:45] <KF5KWE> is that a pic aswell?
[15:45] elyptikus (d9a2f137@gateway/web/freenode/ip.217.162.241.55) joined #highaltitude.
[15:45] <elyptikus> hi
[15:46] <W0OTM> KF5KWE: I don't claim it to be the BEST, but has worked well for us thus far
[15:46] <KF5KWE> Did you build it from kit?
[15:46] <W0OTM> KF5KWE: I have done both
[15:46] <elyptikus> can somebody tell me the URL of the website i can predict the way of my ballon?
[15:47] <KF5KWE> goodluck.com?
[15:47] <KF5KWE> In all seriousness let me look
[15:47] <W0OTM> elyptikus: http://habhub.org/predict/ or http://nearspaceventures.com/w3Baltrak/
[15:47] <fsphil> aahmanitlandedinthewater.com :)
[15:47] <elyptikus> thank you very much
[15:48] <W0OTM> fsphil: or ohcrapitladedinadamntree.fu
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[15:49] <fsphil> haha, more likely that one
[15:50] <Laurenceb> hmf my baudrate is wrong
[15:50] <Laurenceb> Randomskk: i have the wrong baudrate on usart1
[15:51] <Laurenceb> have you got the usart running with an external xtal?
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[15:51] <elyptikus> which ascent rate do you use on habhub.org/predict/???
[15:52] <elyptikus> and which descent rate???
[15:52] <Laurenceb> usart_send_str((char*)"Hello world\n"); should be ok right?
[15:53] <Randomskk> Laurenceb: yea I guess
[15:53] <Randomskk> uhm I think I usually did like
[15:53] <Randomskk> char str[] = "Hello world\n"; usart_send_str(str);
[15:53] <Laurenceb> hmm could it be the fact i initialise GPIOA twice?
[15:53] <KF5KWE> ascend rate of 5.7, descend???
[15:53] <Laurenceb> guess i could try that
[15:53] <Randomskk> Laurenceb: that should be fine
[15:53] <Randomskk> so long as your initialisation is correct. do you have a scope or anything that could check this?
[15:53] <Laurenceb> i think its its something to do with clking
[15:53] <Randomskk> your clock frequency might be wrong
[15:53] <Laurenceb> yeah
[15:54] <Randomskk> seeing as you had that 12mhz xtal then pll up to 72mhz sys clock
[15:54] <Laurenceb> i really does look like the slk
[15:54] <Randomskk> there's a lot of stupid clock settings
[15:54] <Laurenceb> the rcc thing is called by inituart
[15:54] <Randomskk> and rcc manages clock distribution and prescaling for the various internal clocks which then get passed to other peripherals
[15:54] <Laurenceb> and reads the registers themselves
[15:55] <Laurenceb> then uses the clk definition in makefile
[15:55] Action: Laurenceb facepalms
[15:55] <Laurenceb> just looked at the pcb - it ways 24mhz on the xtal
[15:55] <Laurenceb> fail
[15:55] <Randomskk> ah
[15:55] <Randomskk> that would do it
[15:55] <Laurenceb> maybe just
[15:55] <Laurenceb> ok so it seems atm it is running at 144mhz
[15:56] <Laurenceb> as the gpio pin is toggling
[15:56] <Randomskk> 144mhz?!
[15:56] <Randomskk> it's definitely not specc'd for that
[15:56] <Laurenceb> apparently
[15:56] <Randomskk> you might wanna do something there :P
[15:56] <Randomskk> you're measuring gpio toggling at that kinda frequency?
[15:56] <Randomskk> that's some epic overclocking
[15:56] <Laurenceb> yes
[15:56] <Randomskk> blimey!
[15:56] <Randomskk> surprised it's working I guess
[15:56] <Randomskk> that's pretty cool
[15:57] <Laurenceb> RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLSRC_HSE | RCC_CFGR_PLLMULL3);
[15:57] <Laurenceb> i guess thats the only change
[15:58] <Laurenceb> in system_stm32f10x.c
[15:58] <Randomskk> yea
[15:59] <Laurenceb> 3*24=72 :P
[16:01] <Laurenceb> odd - unchanged corrupted characters
[16:02] <Randomskk> make sure it's actually applied the new clock speed and your baud rate is still correct etc?
[16:03] <Laurenceb> hmm i made some changes and moved some stuff inot the makefile
[16:04] <Laurenceb> to simplify.. maybe i broke it
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[16:05] <Laurenceb> hang on a sec
[16:06] <Laurenceb> dont i have to define SYSCLK_FREQ_HSE
[16:06] <Laurenceb> in order for it to switch to external osc?
[16:07] <Laurenceb> #define SYSCLK_FREQ_HSE HSE_Value
[16:07] <Laurenceb> oh. i get it now
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[16:14] <Laurenceb> any idea where HSI_VALUE is defined?
[16:14] <griffonbot> Received email: Dan Bowen "Re: [UKHAS] Cold Batteries and Payload hardening?"
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[16:17] <Laurenceb> aha got it working
[16:17] <Laurenceb> something is wrong with external xtal/hse config tho - it wont run at the right baudrate
[16:18] <Laurenceb> hsi works nicely
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[16:24] <griffonbot> @CollegeARC: @NASA @NASA_Glenn Nice job w/ balloonsat! FYI #RIT #ARHAB launch (100+ at launch site) http://flic.kr/s/aHsjuH5jWW [http://twitter.com/CollegeARC/status/70887406265569280]
[16:24] <griffonbot> @yamaric: Affaire #DSK, Rachid #Arhab : «Les chaînes françaises n'ont pas le droit de diffuser ces images de DSK ( 20Minutes )http://minu.me/4git #TV [http://twitter.com/yamaric/status/70887432375111680]
[16:25] <griffonbot> @FannyStenneler: RT @yamaric: Affaire #DSK, Rachid #Arhab : «Les chaînes françaises n'ont pas le droit de diffuser ces images de DSK ( 20Minutes )http:// ... [http://twitter.com/FannyStenneler/status/70887770935144448]
[16:26] <Laurenceb> oh sh*t
[16:26] <natrium42> wat
[16:26] <Laurenceb> fOSC_IN Conditions Min Typ Max Unit4 8 16 MHz
[16:26] <Laurenceb> no wonder it wont work
[16:26] <Laurenceb> max 16mhz
[16:26] <natrium42> Laurenceb: so, did you repent and accept jesus as your saviour yet?
[16:26] <natrium42> rapture is in a few days
[16:26] <Laurenceb> i dunno, was wondering what to waer
[16:26] Action: BrainDamage drops natrium42 in water
[16:26] <Laurenceb> ware
[16:27] <natrium42> *ear
[16:27] <natrium42> *wear
[16:27] <natrium42> XD
[16:27] <jkominar> would be cool to get some high-altitude pics of the rapture
[16:27] <natrium42> but is it UTC?
[16:27] <Laurenceb> http://www.godlikeproductions.com/forum1/message1493199/pg1
[16:27] <Dan-K2VOL> I'm offering a processing service for people to drop their belongings off with me before rapture, all proceeds of their sale will go toward supporting the Heathens Left Behind charity.
[16:28] <Laurenceb> Re: WHAT SHOULD YOU WEAR TO THE RAPTURE? Quote [+] #
[16:28] <Laurenceb> A tinfoil hat & mankini
[16:28] <Laurenceb> XD
[16:28] <natrium42> :)
[16:28] <Laurenceb> glp is always fun
[16:29] <BrainDamage> heaven is boring anyway, spending eternity contemplating god, pass ...
[16:29] <Dan-K2VOL> BTW that french arhab tweet is very interesting
[16:29] <Dan-K2VOL> once you translate the article to english
[16:30] <Dan-K2VOL> Unrelated to ballooning of course, but I had no idea that it was illegal to publish photos of arrested persons in handcuffs due to the effect it could have on the perception of their innocence until proven guilty
[16:31] <BrainDamage> nah, it can be related, with sufficient res you could tape arrests if you know someome might be arrested
[16:31] <BrainDamage> given sufficient res & zoom
[16:31] <Dan-K2VOL> Ha
[16:37] <Dan-K2VOL> Anyone into doing active stabilization platforms on balloons?
[16:39] <Randomskk> Laurenceb: so max HSE is 16MHz? and you've put a 24MHz crystal there?
[16:39] <Laurenceb> yes
[16:39] <Laurenceb> doh
[16:39] <Laurenceb> well max is 25, but it has to be a clk in, not an xtal
[16:40] <Laurenceb> i didnt read that far when i did the bom :P
[16:41] <Randomskk> oops
[16:41] <Randomskk> reflow the 24 off and put a new one in?
[16:41] <Laurenceb> yeah, just ordering from rs
[16:42] <Laurenceb> anyway it works if i switch the #define to use hsi
[16:42] <Laurenceb> it seems to run of the xtal as well but the frequency is way off
[16:43] <Randomskk> hsi should be high speed internal, i.e. the internal RC
[16:43] <Laurenceb> yeah
[16:45] <Laurenceb> ill get a 12mhz
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[17:07] Josh_ (569e0718@gateway/web/freenode/ip.86.158.7.24) joined #highaltitude.
[17:07] <Josh_> hey people!
[17:07] <W0OTM> Hey Josh_
[17:07] <Josh_> just checking in to see what's happening
[17:07] <Josh_> :)
[17:08] <Josh_> also, set up a link for funding my project....
[17:08] <Josh_> http://www.crowdfunder.co.uk/investment/balloon-to-the-edge-of-space-189
[17:08] <Josh_> or you can check out my blog: www.joshingtalk.com
[17:09] <Josh_> just wondering if there is a certain time of day that is best for launch? maybe morning or evening as that's when the wind has settled a bit?
[17:25] <cuddykid> Josh_:nice blog and great idea for the funding
[17:26] <cuddykid> I see your using a gps tracker from trackershop... does this relay location back via satellite or cellular?
[17:27] <Josh_> cuddykid: thanks!
[17:28] <Josh_> it's both GSM and GPS
[17:28] <Josh_> however it will cut out i should think above a certain point
[17:28] <Josh_> and then hopefully begin to transmit again on return
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[17:29] <jcoxon> evening
[17:29] <cuddykid> Josh_: yeah, gsm will cut out around 2km up apparently, make sure that it does reconnect again otherwise it wouldn't be good!!
[17:29] <cuddykid> hi jcoxon
[17:30] <jcoxon> hey
[17:30] <jcoxon> got the payload down
[17:30] <jcoxon> though the tree isn't so happy
[17:30] <cuddykid> woohoo!
[17:30] <cuddykid> haha! cut it down?
[17:31] <jcoxon> a little bit
[17:31] <cuddykid> lol
[17:31] <jcoxon> not the optimum solution
[17:31] <cuddykid> at least the payload is back
[17:31] <cuddykid> have all the components survived the rain etc?
[17:32] <jcoxon> yes
[17:32] <jcoxon> nicely sealed inside the box
[17:32] <cuddykid> nice
[17:32] <Josh_> haha thanks cuddykid
[17:32] <jcoxon> don't recommend tree felling
[17:32] <jcoxon> it was just too high
[17:32] <Josh_> looking to piggyback an arduino if poss
[17:33] <SpeedEvil> Woo!
[17:33] <Josh_> well done on the retrieval jcoxon
[17:34] <cuddykid> Josh_: I had very little electronics knowledge however managed to get an arduino with ntx2 and lassen iq gps set up, not too difficult for us noobs! (so that would be best if possible)
[17:34] <cuddykid> however, up to you!
[17:40] <Josh_> thanks cuddykid, will give it a go hopefully
[17:40] <Josh_> provided the funding comes in :D
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[17:43] <Dan-K2VOL> Ahh jcoxon, a perfect situation for a water-soluble payload cutdown
[17:44] <jcoxon> haha
[17:44] <fergusnoble> wow, 68 people, things have changed since I was last here
[17:44] Action: SpeedEvil vaguely recalls fergusnoble.
[17:44] <jcoxon> fergusnoble, have you finished your term?
[17:44] <Dan-K2VOL> hi fergusnoble
[17:45] <jcoxon> as you aren't allowed here if you haven't :-p
[17:45] <fergusnoble> not quite but i've got a bit of a break
[17:45] <jcoxon> okay
[17:46] <fergusnoble> how are things in ukhas land these days?
[17:46] <jcoxon> good good
[17:46] <jcoxon> had a few launches over the past 2 weeks
[17:46] <jcoxon> still waiting for Dan-K2VOL's trans-a flight :-p
[17:48] <SpeedEvil> UKHAS has changed focus.
[17:48] <SpeedEvil> We are now lumberjacks!
[17:49] <jcoxon> SpeedEvil, no more lumberjacking for me
[17:49] <fergusnoble> oh cool, then is the trans-a attempt?
[17:49] <fergusnoble> *when
[17:50] <Dan-K2VOL> ;-) one of these days
[17:50] <Dan-K2VOL> We're stalled on a satellite antenna problem
[17:50] <Dan-K2VOL> And the weather opportunites have likely gone until next winter anyway
[17:50] <Dan-K2VOL> So, probably december, but we're going to launch the ship on a trial flight anyway this summer
[17:52] <fergusnoble> sounds good, a trial flight over land?
[17:54] <Dan-K2VOL> Yeah
[17:54] <Dan-K2VOL> make sure all systems can take the 3-day flight
[17:54] <W0OTM> iHAB-5 on the launchpad ready for launch tomorrow. http://t.co/ypCR51Z
[17:55] <Elwell> jcoxon: pics?
[17:55] <jcoxon> so the SPoT i recovered was still working
[17:55] <jcoxon> 8 days
[17:55] <jcoxon> Elwell, not to hand
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[17:58] <fergusnoble> W0OTM: like the launchpad! thats awesome
[17:59] <W0OTM> fergusnoble: its proven to be functional
[18:01] <fsphil> Like the sunshine
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[18:15] <cuddykid> agree with fsphil!!
[18:15] <W0OTM> its not sunny there?
[18:15] <cuddykid> Got about a week of blue skies a few weeks back.. now we have to pay with weeks and weeks of cloudy/rainy days!
[18:16] <cuddykid> W0OTM, it's rarely that sunny in the uk
[18:16] <W0OTM> seriously?
[18:16] <W0OTM> thats sucks!
[18:16] <cuddykid> yeah!
[18:16] <cuddykid> it does!
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[18:17] <cuddykid> had a fair bit of rain here today and been cloudy all day however the last hr or so it has brightened up and partly blue skies
[18:17] <LazyLeopard> Havn't seen rain here since Saturday, and that was brief...
[18:18] <cuddykid> LazyLeopard, where abouts are you?
[18:18] <LazyLeopard> Just south east of London...
[18:18] <cuddykid> had rain everyday for the past couple of days!
[18:19] <cuddykid> ahh, yeah, the weather is considerably better in south east corner (london, e anglia etc)
[18:19] <cuddykid> usually a few degrees warmer too, lucky@
[18:19] <cuddykid> *!
[18:22] <LazyLeopard> It's been dry here. My pond's down 7 or 8 inches on normal for this time of year.
[18:23] <LazyLeopard> Hah! Talk of the devil! It's raining! Sort of...
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[18:25] <fsphil> and the sun has come out here
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[18:36] <Laurenceb_> did someone here say it was possible to setup an RS account without being a registered company
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[18:59] <Laurenceb_> http://uk.rs-online.com/web/generalDisplay.html?id=services&file=nextday
[18:59] Action: Laurenceb_ wants free delivery
[19:00] <SpeedEvil> I see nothing on https://uk.rs-online.com/web/generalDisplay.html?id=openAccount
[19:00] <SpeedEvil> requiring a 'proper' company
[19:01] <SpeedEvil> select 'sole trader'
[19:01] <SpeedEvil> I suspect you will probably need to go variable DD, not credit
[19:03] <Laurenceb_> hmm
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[19:12] <Laurenceb_> You will be contacted by your personal New Business Advisor within 24 hours to guide you through your first steps with RS
[19:12] <Laurenceb_> bollox
[19:19] <Elwell> no trade counter nearby?
[19:19] <SpeedEvil> Well - you are setting up a small buisness to sell SDRs and autopilots aren't you?
[19:20] <Laurenceb_> heh
[19:21] <Laurenceb_> Elwell: yes, just across the road
[19:21] <Laurenceb_> but they wont let me pickup 12mhz crystals there :(
[19:21] <Laurenceb_> £5 delivery
[19:24] <Elwell> ouch!
[19:24] <Elwell> that sucks. I thought it used to be free.
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[19:25] Action: Elwell needs to get some heat shrink stripboard
[19:26] <SpeedEvil> That would be handy.
[19:26] <SpeedEvil> Make it up with DIP parts, heatshrink it and it goes down to QFN
[19:29] <Laurenceb_> lol
[19:30] Nick change: jkominar -> excel
[19:30] Nick change: excel -> jkominar
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[19:31] <Lunar_Lander> hello
[19:34] <Randomskk> Laurenceb_: farnell! free shipping
[19:34] <Laurenceb_> only for >£20
[19:35] <Randomskk> that's not true
[19:35] <Laurenceb_> huh
[19:35] <Elwell> err stick an 'and' in my last :-)
[19:35] <Randomskk> you do need an account
[19:35] <Lunar_Lander> xD
[19:42] <Laurenceb_> oh yeah itll let me now
[19:43] <Laurenceb_> oh but you cant pay by card
[19:44] <Laurenceb_> is there a DD thingy?
[19:44] <Lunar_Lander> does anyone of you still have that link to the Lassen IQ connector cable?
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[19:56] <Lunar_Lander> btw
[19:56] <Lunar_Lander> I again got a very nice prediction
[19:56] <Lunar_Lander> wait
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[19:58] <danielsaul> http://bit.ly/kbqg9L
[19:58] <danielsaul> Sorry, just realised I pasted that in the wrong channel :D
[19:58] <danielsaul> Feel free to fill it out anyway ;)
[20:00] <Lunar_Lander> OK, this still looks good: http://img803.imageshack.us/img803/6561/predictionmay1920111000.png
[20:01] <Randomskk> danielsaul: doing a quadcopter for GCSE electronics?
[20:01] <Lunar_Lander> and now this: http://img814.imageshack.us/img814/268/landingdetail.png
[20:02] <danielsaul> Randomskk: Yeah... I know its a bit beyond GCSE :D
[20:02] <Randomskk> just a tad. what are you planning to do?
[20:02] <Randomskk> from scratch? what kind of control? using pre-made motor controllers?
[20:03] <danielsaul> Will use premade ESCs definitely at first, might have a look at making my own and failing after I've handed in the gcse coursework stuff
[20:03] <Randomskk> kids seem to be getting smarter and smarter these days
[20:03] <danielsaul> :D
[20:03] <Randomskk> my gcse dt project was like, a digital compass with a screen, and that wasn't all that long ago
[20:04] <Randomskk> so like, what, some gyros and accels and stabalisation based on that, some kind of radio for control?
[20:04] <Randomskk> any thoughts on the control platform/microprocessor? control algorithms? sensor fusion?
[20:04] <danielsaul> Yep, thats the plan...
[20:04] <danielsaul> Will probably use an AVR
[20:04] <Randomskk> I had a fairly serious go at this after sixth form but made the foolish mistake of trying to do my own motor controller
[20:04] <Randomskk> six revisions later it's still not perfect and I've not got anything flying
[20:05] <danielsaul> Yeah, I know someone else that's made one who's at Uni somewhere now, he highly recommended not trying to make my own ESCs
[20:05] <Randomskk> what're you doing for the body?
[20:06] <Randomskk> totally awesome project though, I dread to think what you'll do for sixth form
[20:06] <danielsaul> Still not totally sure - probably aluminium plates in the middle, with some kind of arms :S - still planning at the moment - I also hope to get some foam etc. to go around the props
[20:06] <Randomskk> all sounds pretty excellent
[20:06] <danielsaul> lol - whether I'll do it at sixth form is another matter... There have been staffing issues in DT at our school...
[20:06] <Randomskk> :(
[20:07] <Randomskk> dunno if you could do worthwhile sensor fusion on an AVR, but you can certainly do enough to get something half stable and flying
[20:07] <Randomskk> where abouts are you, out of interest?
[20:07] <danielsaul> Sutton
[20:07] <Randomskk> ah, jonsowman and Matt_soton and so forth?
[20:07] <danielsaul> Yup :D
[20:08] <Randomskk> your school are doing something seriously wrong if you have staffing issues for DT
[20:08] <Randomskk> I saw some of your gcse/sixth form projects at an expo at brooklands one time, it was great
[20:08] <danielsaul> Yeah - the old head of DT left who was amazing, and they've brought in someone who knows nothing...
[20:08] <Randomskk> :(
[20:08] <danielsaul> :(
[20:08] <danielsaul> Anyway, gotta go - last minute revision for biology exam tomorrow :D
[20:08] <Randomskk> haha sounds familiar
[20:09] <Randomskk> have fun
[20:09] <Randomskk> good luck with the project
[20:09] <danielsaul> Thanks :)
[20:17] <Lunar_Lander> I got a predictor/habhub idea
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[20:17] <Lunar_Lander> how about a parachute-final descent calculator?
[20:17] <Lunar_Lander> give in chute diameter and payload mass
[20:17] <Lunar_Lander> and you get the final descent velocity that the predictor needs
[20:19] <jonsowman> Lunar_Lander: feel free to write it for me and I'll pull it in ;)
[20:19] <Lunar_Lander> xD yeah
[20:20] <Lunar_Lander> have to look into that
[20:20] Nick change: SAIDias -> W0OTM
[20:21] <Lunar_Lander> hi W0OTM
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[20:22] <W0OTM> Hi Lunar_Lander
[20:22] <W0OTM> Lunar_Lander: iHAB-5 on the launchpad ready for launch tomorrow. http://t.co/ypCR51Z
[20:23] <Lunar_Lander> cool!
[20:23] <Lunar_Lander> objectives?
[20:24] <W0OTM> Test CutDown, VHF Antenna performance, LaunchTower (seen in pict) and the 36" Party Balloons
[20:24] <Lunar_Lander> cool
[20:25] <W0OTM> This is the first flight to test the flight computer for the Glider project this summer
[20:26] <Lunar_Lander> yeah
[20:26] <Lunar_Lander> the last glider
[20:26] <Lunar_Lander> that was in 2003 or so
[20:26] <Lunar_Lander> it would be awesome to have a new one
[20:27] <W0OTM> Thats our plan
[20:27] <Lunar_Lander> yeah
[20:27] <W0OTM> more details about that later
[20:27] <Lunar_Lander> did you see that guy? I forgot his name
[20:27] <Lunar_Lander> he was from canada
[20:27] <Lunar_Lander> Vanden Berg or so
[20:27] <W0OTM> dunno
[20:27] <Lunar_Lander> he wanted to make a new glider
[20:28] <Lunar_Lander> and he left his website alone for serveral years now
[20:28] <Lunar_Lander> the comments section is full of Viagra ads
[20:37] <Lunar_Lander> W0OTM
[20:37] <Lunar_Lander> this still looks good: http://img803.imageshack.us/img803/6561/predictionmay1920111000.png
[20:37] <Lunar_Lander> and now this: http://img814.imageshack.us/img814/268/landingdetail.png
[20:41] <fsphil> sunday prediction for here back into the wet stuff: http://habhub.org/predict/#!/uuid=ffa4f777fc5b1314eb902ef8eb1ec09aac0c6304
[20:42] <LazyLeopard> Ugh. Wind definitely in the wrong direction there...
[20:52] <Lunar_Lander> yeah
[20:53] <Lunar_Lander> even worse than the train
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[21:05] <Laurenceb_> Randomskk: to use i2c, do i need to configure the appropriate gpio?
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[21:11] Action: NigeyS has just discovered the golden mean
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[21:48] <Randomskk> Laurenceb_: yes
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[21:55] <MNSP> hello all :)
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[21:57] <Lunar_Lander> hello MNSP
[21:57] <MNSP> hows it going Lunar?
[22:00] <Lunar_Lander> I'm fine,thanks, and you?
[22:01] <MNSP> all good here, just been tinkering with laptop
[22:01] <Lunar_Lander> ah
[22:01] <Lunar_Lander> hope it's no big problem
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[22:01] <MNSP> its all good, had this one wit w7 on and just put fldigi and some othe prog on it
[22:02] <MNSP> but am still getting used to keyboard
[22:12] <griffonbot> Received email: Frank Ryan Jr "[UKHAS] How do you get a canon powershot to auto shoot?"
[22:14] <griffonbot> Received email: Craig Chapman "Re: [UKHAS] How do you get a canon powershot to auto shoot?"
[22:15] <Laurenceb_> Randomskk: so what do i set SDA as?
[22:15] <Randomskk> output alt push-pull I think, one sec
[22:15] <Randomskk> https://github.com/adamgreig/followingrobot/blob/master/main.c#L311
[22:16] <Laurenceb_> oh cool
[22:16] <Randomskk> SCL as open drain alt output, SDA as open drain alt output
[22:16] <Randomskk> both then
[22:16] <Laurenceb_> i was looking for some example code
[22:16] <Randomskk> yea, the two blocks by line 311 there, the I2C_Config function, and also cam.c in that tree
[22:17] <Laurenceb_> ah i understand now - theres an alt function config
[22:17] <Randomskk> yea
[22:17] <Randomskk> which is usually used for peripheral stuff
[22:18] <SpeedEvil> In some ways microchips parts with a crossbar between peripherals and pins are cool.
[22:18] <Randomskk> their pin reallocation thing?
[22:18] <SpeedEvil> Yeah.
[22:18] <Randomskk> it seems really neat, I wish other people would do it
[22:19] <SpeedEvil> If you need txd, rxd, and cts, for example.
[22:19] <Randomskk> STM32 has one alternative mapping for each peripheral
[22:19] <Randomskk> which is okay, but not as good
[22:19] <SpeedEvil> Indeed.
[22:19] <SpeedEvil> Or txd, and no rxd
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[22:20] <SpeedEvil> It's really cool for large-pin-count peripherals.
[22:20] <SpeedEvil> For example, LCD controllers.
[22:20] <SpeedEvil> Where enabling them often means turning off huge slices of other stuff.
[22:21] Action: SpeedEvil is currently being silly.
[22:21] <SpeedEvil> I'm looking for upgrade POP chips for my phone.
[22:21] <Randomskk> POP?
[22:21] <SpeedEvil> Package on Package
[22:21] <SpeedEvil> The ROM+RAM is soldered onto the top of the processor.
[22:22] <Randomskk> oh right, yea
[22:24] <SpeedEvil> But double the RAM, and bumping the speed notch would be really cool.
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[23:36] <griffonbot> Received email: Frank Ryan Jr "[UKHAS] How do you get a canon powershot to auto shoot?"
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[00:00] --- Thu May 19 2011