highaltitude.log.20110616

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[04:29] <Darkside> http://yfrog.com/z/kgg0stj
[04:30] <SpeedEvil> wow - it transmits with no power source!
[04:49] <Darkside> lol
[04:49] <Darkside> theres wires going to it
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[05:21] <SamSilver> Dan-K2VOL: morning
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[06:49] <fsphil> now that's a proper PCB Darkside, hope mine turns out as nice
[07:01] <eroomde> Darkside: good evening
[07:01] <eroomde> nice work!
[07:02] <Darkside> thanks
[07:02] <Darkside> having a ew bugs atm
[07:02] <Darkside> but its mostly going ok
[07:02] <eroomde> standard
[07:02] <fsphil> yea, I'd almost be worried if there where no bugs - would be constantly worried I missed something :)
[07:03] <eroomde> we had that once
[07:03] <eroomde> badger 1
[07:03] <eroomde> it ran 'flash led' prog first time after soldering everything on
[07:03] <eroomde> i nearly fainted
[07:03] <eroomde> we used up ALL our electronics karma that day
[07:04] <eroomde> needless to say badger 2 was a different kettle of fish
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[07:41] <SamSilver> bbl
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[07:52] <Darkside> ok
[07:52] <Darkside> pressure sensor soldered and working
[07:52] <Darkside> BMP085
[07:55] <Elwell> I take it the flash led is the 'hello world' for arduinos et al?
[07:57] <eroomde> long before arduinos, yep :)
[07:58] <eroomde> it's the standard example of something that differentiates those who _know_ (nerds) from those who _don't know_
[07:58] <eroomde> when you run up to your friend saying 'ahaha! ahaha! look!! the led is flashing!!' and they are both unimpressed and worrying about you
[07:59] <eroomde> but you _know_ how cool it is that the led is flashing on your brand new just-soldered pcb
[07:59] <Elwell> uh oh. Have just bought some 'stuff to make an led flash' so will mentally prepare for the eye rolling by SWMBO :-)
[08:01] <eroomde> worth it for the sense of satisfaction that you'll get
[08:02] <Darkside> ok, so i now have 2 working telemetry transmitters
[08:02] <Elwell> just ordered a nanode -- http://wiki.hackspace.org.uk/wiki/Project:Nanode
[08:02] <Darkside> one running on 434.650MHz, and one running on 151.3MHz
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[08:03] <eroomde> what's the 151 one fore Darkside ?
[08:03] <Darkside> its an ISM band here
[08:03] <Darkside> also that transmitter doesn't drift, and its also 100mW
[08:04] <eroomde> nice
[08:14] <Darkside> ok, this other boards pressure sensor isn't working
[08:14] <Darkside> hrmmmm
[08:14] <Darkside> gonna be a bitch to desolder...
[08:17] <Darkside> lol
[08:17] <Darkside> i use the solder tape on it
[08:17] <Darkside> now it works
[08:17] <Darkside> must have been a short somewhere
[08:22] <fsphil> If you've no drift you could try something like Olivia, instead of rtty
[08:25] <Darkside> lol wtf this floating point code makes the avr crash
[08:27] <Darkside> wow thats screwed
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[08:32] <Darkside> ok i think i figured out the problem
[08:32] <Darkside> buffer overflow
[08:33] <Darkside> ok thats broken
[08:33] <Darkside> weird
[08:35] <Darkside> yep it was a buffer overflow
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[10:45] <Darkside> urgh
[10:46] <Darkside> dl-fldigi + windows + hamlib doesnt seem to be working
[10:47] <Darkside> i press initialize and it crashes
[10:49] <Darkside> fldigi does the same thing
[10:51] <fsphil> it was working though?
[10:52] <Darkside> dunno
[11:00] <Darkside> ok i'm a dumbass
[11:00] <Darkside> CIV cable was unpligge
[11:00] <Darkside> unplugged*
[11:01] <Darkside> hmm its still breaking tho
[11:03] <Darkside> yeah, its ot controlling the raido
[11:05] <Darkside> working now
[11:05] <Darkside> i wonder how AFC works
[11:06] <Darkside> ok got my hand on the ntx2
[11:06] <Darkside> drifting lol
[11:11] <fsphil> they're good at that :)
[11:13] <fsphil> the 869mhz modules are predictably worse
[11:13] <Darkside> heh
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[14:11] Nick change: SAIDias -> W0OTM
[14:11] <W0OTM> Hello all
[14:15] <Darkside> hey W0OTM
[14:15] <fsphil> hullo
[14:16] <Darkside> W0OTM: http://rfhead.net/gallery/2011-06-16_Assembled_MiniNut/DSC_4082.jpg
[14:18] <W0OTM> Darkside: nice, when can I get one?
[14:18] <Darkside> :P
[14:18] <Darkside> hey, i could* sell them
[14:18] <Darkside> BoM is about $50 per board, not including GPS
[14:19] <W0OTM> APRS TNC and XMTR all in one?
[14:19] <Darkside> no
[14:19] <Darkside> this is just a telemetry payload
[14:19] <Darkside> just a very small one
[14:19] <W0OTM> what mode?
[14:20] <Darkside> 300 baud RTTY
[14:20] <W0OTM> very cool
[14:20] <W0OTM> I like it
[14:20] <W0OTM> nice work
[14:20] <Darkside> it's intended to be a lightweight SMD replacement to our existing payloads
[14:20] <Darkside> that board, without GPS, weighs 15g
[14:21] <Darkside> with GPS, 35g
[14:21] <W0OTM> awesome! I want one for APRS
[14:21] <W0OTM> instead of RTTY
[14:21] <Darkside> well, it would need modifications for APRS
[14:21] <Darkside> i might try making one for APRS
[14:21] <W0OTM> still badass
[14:21] <Darkside> would just need to make a resistor network as a shitty DAC
[14:21] <W0OTM> you build it, ill buy it
[14:21] <W0OTM> ill fly it in my BallooMerang project
[14:22] <Darkside> lol
[14:22] <Darkside> i build it, i'll fly it :P
[14:22] <W0OTM> LMAO
[14:22] <Darkside> we've got an APRS digipeater in the works
[14:22] <Darkside> another team member is working on a full-fledged APRS digipeater that we can fly
[14:23] <eroomde> W0OTM: you might be interested in some of these things for gps -> aprs
[14:23] <eroomde> http://www.byonics.com/
[14:23] <Darkside> yeah, you could easily fly a tinytrak
[14:23] <Darkside> or you could put the opentracker source code on something
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[14:26] <Dan-K2VOL> Good soldering darkside
[14:26] <Darkside> i did end up soldering on the BMP085
[14:26] <Darkside> just havent got a pic
[14:27] <Dan-K2VOL> Darkside did you use hot air for the BMP?
[14:27] <Darkside> nope
[14:27] <Darkside> >_>
[14:27] <Darkside> which is why one of them doesn't work reliably
[14:27] <Darkside> lol
[14:27] <Darkside> i need to resolder one of them...
[14:27] <eroomde> microscope
[14:27] <eroomde> it really really helps
[14:27] <Dan-K2VOL> Yeah that's what we found, iron soldering kills those sensors
[14:28] <Dan-K2VOL> Or at least it did to our first one
[14:28] <Darkside> nah, its not dead
[14:28] <Darkside> it just has an intermittent connection
[14:28] <Darkside> if i press down on it while i boot up it works :P
[14:28] <eroomde> it turns out almost all hand shaking is due to lack of feedback rather than motor control, and it massively reduces when you have a microscope - makes delicate soldering a lot easier
[14:28] <eroomde> http://www.flickr.com/photos/cuspaceflight/4362704812/sizes/o/in/set-72157621846323425/
[14:29] <eroomde> take a look at the gyroscopes (Z and X Y) to the right of the arm chip
[14:29] <Dan-K2VOL> If you ever get hot air station A gentle 150C preheat with hot air then 300C does well
[14:29] <Dan-K2VOL> Nice eroomde
[14:29] <eroomde> (ignore my horrible oscillator bodge)
[14:29] <eroomde> i did them by hand - would have had no chance without a microscope
[14:29] <SpeedEvil> eroomde: The brain is funky!
[14:30] <Dan-K2VOL> Nice, did you use the drag-solder-and-flux technique?
[14:30] <eroomde> nope, individual
[14:30] <eroomde> it's qfn
[14:30] <eroomde> so i just had to use a fine tip and heat up each pad
[14:30] <Dan-K2VOL> heh
[14:30] <Darkside> i did the TQFP-32 pin by pin
[14:30] <Dan-K2VOL> Nice logo BTW
[14:30] <eroomde> did drag technique for the easy big stuff though, like the arm
[14:31] <SpeedEvil> Is that the app-note that shows how to solder QFN by nad?
[14:31] <SpeedEvil> err
[14:31] <SpeedEvil> hand
[14:31] <eroomde> yes the logo is not strictly within copywrite law
[14:31] <eroomde> but meh
[14:31] <eroomde> SpeedEvil: i don't know about an app note
[14:31] <eroomde> i just had a microscope, tea, and mozart
[14:31] <eroomde> that puts me in the soldering zone
[14:31] <Dan-K2VOL> Eroomde I see you've been reading the fine print on apple devices ;-)
[14:32] <eroomde> :D
[14:32] <eroomde> you can see the space for the SiGe gps front end in the top right
[14:33] <eroomde> that board actually had connectors for a gumstix on the back
[14:33] <eroomde> to run the software gps
[14:33] <Dan-K2VOL> Oh neat
[14:33] <eroomde> and spi comms with the arm
[14:33] <eroomde> the 'normal' gps below is a venus one
[14:33] <eroomde> they're shit, should have used ublox
[14:33] <eroomde> that board now has a dead-bugged ublox infact
[14:34] <Dan-K2VOL> Ha
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[14:34] <Dan-K2VOL> What did you design the board in and where did you have it made eroomde, and also darkside?
[14:35] <eroomde> eagle, pcbtrain
[14:35] <eroomde> tis a 4 layer
[14:35] <eroomde> pcbtrain are an english company with 5 day turnaround
[14:35] <eroomde> we were in a big push when we made it
[14:35] <Dan-K2VOL> Gotcha
[14:35] <eroomde> i did the layout in about 36 hours, which caused about 50hrs of extra work when the boards came back cursing my rushed design
[14:38] <Darkside> Dan-K2VOL: altium designer, seeedstudio
[14:38] <eroomde> jealous
[14:38] <Darkside> 2 layer board, 5x5cm, cost me $10
[14:38] <Darkside> + shipping
[14:38] <eroomde> ours cost about £200 for four
[14:38] <eroomde> (350USD ish)
[14:38] <Darkside> yeah but 5 day turnaround
[14:38] <Darkside> mine took.... wait
[14:39] <Darkside> 5 days to manufacture
[14:39] <Darkside> then shipping took ages because of some chinese hoiday
[14:39] <Darkside> holiday*
[14:39] <Darkside> but mine was only 2 layer
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[14:43] <eroomde> Darkside: Fergus knocked up a minimal flight computer for the same reason
[14:43] <eroomde> (badger cub)
[14:43] <eroomde> just something to throw on a payload and not worry about
[14:43] <eroomde> http://www.flickr.com/photos/cuspaceflight/3887463272/in/set-72157621846323425
[14:44] <Darkside> oo nicce
[14:44] <Darkside> got a pic of the other sie?
[14:44] <Darkside> side*
[14:45] <eroomde> http://www.flickr.com/photos/cuspaceflight/3887350096/sizes/o/in/set-72157621846323425/
[14:45] <Darkside> nvm i see
[14:45] <eroomde> bottom right
[14:45] <eroomde> this was before dcleaning
[14:45] <eroomde> we just wanted the family photo
[14:45] <Darkside> whate the main micro on it?
[14:45] <eroomde> cc1111
[14:45] <Darkside> aaaaaaahhhhhh
[14:45] <eroomde> it's an rx/tx with an 8051 uController core
[14:45] <Darkside> yep
[14:45] <Darkside> i know the ones
[14:46] <Darkside> you have that doing RTTY? or something faster
[14:46] <eroomde> rtty
[14:46] <Darkside> and don't those lipos freeze?
[14:47] <eroomde> not yet
[14:47] <Darkside> heh
[14:47] <Darkside> flown one?
[14:47] <eroomde> but the whole thing goes in a little sausage of insulation and heat-shrink
[14:47] <Laurenceb> they have msp430 with chipcon built in now
[14:47] <eroomde> the board generates enough heat to keep it toasty
[14:47] <Darkside> ahh ok
[14:47] <eroomde> Darkside: yep they've flown
[14:47] <Darkside> nice
[14:47] <Darkside> i just got 1up'd :P
[14:48] <eroomde> this is all old school stuff
[14:48] <eroomde> 2009!
[14:48] <Darkside> actually
[14:48] <Darkside> that only does 10mW :P
[14:48] <eroomde> that's like 40 years in hab years
[14:48] <Darkside> mine does 100mW :P
[14:48] <Darkside> so nyer :P
[14:48] <eroomde> the law is our enemy
[14:48] <eroomde> and my board layout skills
[14:48] <eroomde> or lack
[14:48] <Darkside> haha
[14:49] <Darkside> mine aren't very good
[14:49] <Darkside> i know i have ground loops on mininut
[14:49] <Darkside> but they don't seem to affect the board, so meh
[14:49] <eroomde> yeah, 4 layer boards at least make emi design a lot easier
[14:50] <Darkside> mm
[14:50] <Darkside> are the badgercub boards 4 layer?
[14:51] <eroomde> yep
[14:51] <Darkside> ahh
[14:51] <Darkside> thats how its so small
[14:51] <eroomde> i really am a big fan of four layer
[14:52] <Darkside> whats the GPS chipset on the badgercub?
[14:52] <eroomde> more routing options and better grounding means you can get a lot more on a board, do mixed-signal boards more easily, and so on
[14:52] <eroomde> means fewer connectors which cost a lot to get decent ones
[14:52] <eroomde> it's a venus chipset again
[14:52] <Darkside> i thought they didn't work >18km
[14:52] <eroomde> they're really heavily filtered - no good for highly dynamic stuff
[14:52] <eroomde> they do
[14:52] <eroomde> our ones do
[14:53] <Darkside> most don't?
[14:53] <eroomde> we bought 10 from the distributor
[14:53] <eroomde> specifically working ones
[14:53] <Darkside> ahaha
[14:53] <eroomde> can pass you on the name iuw
[14:53] <Darkside> nah
[14:53] <Darkside> <3 uBox
[14:53] <Darkside> uBlox*
[14:53] <eroomde> they're fine for hab but we used our flight computers for some more dynamic stuff, and they weren't up to it
[14:53] <eroomde> yeah fair enough - ublox is the way to go
[14:54] <Darkside> i'm working on a HF transmitter which is going to use a LEA-6T module for timing
[14:54] <eroomde> they actually work about 200m/s vertical, despite the datasheet being adamant they're 100m/s vertical max
[14:54] <eroomde> s/about/above
[14:54] <Darkside> yep
[14:54] <Darkside> there was a rocketry thing on at linux.conf.au in jan
[14:55] <Darkside> the rocketry group had their venus + cc1111 based payload
[14:55] <Darkside> which would loose lock on the way up
[14:55] <Darkside> shenki flew a mobsendat, a AVR + uBlox based board, which never lost lock :P
[14:55] <Darkside> it only got 3 points on the way up, but it worked
[14:55] <eroomde> nice
[14:56] <eroomde> oh we got quite a lot of points when we were doing it, but that was i guess cos it was a steady 1g acceleration up to above 200m/s
[14:56] <eroomde> rather than rocket
[14:56] <Darkside> heh
[14:56] <Darkside> whas the main chip on the badger2?
[14:57] <eroomde> lpc2368
[14:57] <eroomde> arm7
[14:57] <Darkside> nice
[14:57] <eroomde> we'd go for cortex-m3 on a next gen
[14:57] <eroomde> but this was before cortexes
[14:57] <Darkside> SW GPS
[14:58] <Darkside> were you planning on sending down the 1-bit samples?
[14:58] <eroomde> no
[14:58] <Darkside> or doing correlation on chip
[14:58] <eroomde> real-time onboard
[14:58] <Darkside> nice
[14:58] <eroomde> but on a gumstix
[14:58] <eroomde> badger2 has gumstix connectors on its back
[14:58] <Darkside> ahh :P
[14:58] <eroomde> gumstix has a serial connection with the lpc2368
[14:59] <Darkside> i've got an older gumstix whch i've borrowed from uni
[14:59] <eroomde> this was an overo - one of the omap thingies
[14:59] <Darkside> PF270
[14:59] <eroomde> they run pretty warm though
[14:59] <eroomde> the whole gps effort was for rockoons
[15:00] <eroomde> as we were looking at 50G accelerations and ?100km alt
[15:00] <eroomde> >
[15:00] <Darkside> wow
[15:00] <Darkside> you've done a rocketoon?
[15:00] <Darkside> rockoon*
[15:00] <eroomde> no, it's the current project
[15:00] <eroomde> it's quite complicated :s
[15:00] <eroomde> well, to make one with a realistic 100km shot
[15:01] <eroomde> http://www.flickr.com/photos/cuspaceflight/sets/72157621633883573/
[15:01] <Darkside> heh
[15:01] <eroomde> we've been building our own carbon fibre rockets in the autoclave ^
[15:01] Action: SpeedEvil wants to make some CCC.
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[15:02] <eroomde> been flight testing them, but sadly we can only fly rockets to 10000ft with the launch site notam, which means we had to severaly underpower that thing
[15:02] <Darkside> mmm
[15:02] <Darkside> ok, need to sleep...
[15:02] <Darkside> 12:30 am here
[15:03] <eroomde> eek
[15:03] <eroomde> work tomorrow?
[15:03] <eroomde> well at lkeats it's friday
[15:03] <eroomde> half day :)
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[15:15] <Darkside> mm i'll probably end up working on the mininut boards all day :P
[15:16] <eroomde> stay through to sunrise
[15:16] <eroomde> it's nice to solder through the night
[15:16] <eroomde> have some scrambled egg
[15:16] <eroomde> then fall asleep high on solder fumes
[15:16] <eroomde> (the scrambled eggs help with that)
[15:20] <jonsowman> yay
[15:20] <jonsowman> 1.1 done!
[15:20] <eroomde> ethernet chip working?
[15:21] <jonsowman> it's talking, which is one better than last time
[15:21] <eroomde> :)
[15:21] <jonsowman> just writing code to get uIP running
[15:21] <eroomde> cool
[15:21] <jonsowman> then hopefully it will ping, and i will be happy
[15:23] <eroomde> yes that would be very exciting
[15:23] <eroomde> and impressive
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[15:24] <eroomde> how good a latency can you get with tcp/ip?
[15:25] <jonsowman> well the avr will process incoming data on each call of the periodic uIP function
[15:25] <eroomde> with a real-time thing behind it
[15:25] <jonsowman> so as quickly as you can run that really
[15:25] <eroomde> cool
[15:26] <eroomde> it might make a decent protocol for connecting things like sensors in mechatronics projects
[15:26] <eroomde> like a rocket or drop vehicle
[15:26] <jonsowman> yeah
[15:27] <jonsowman> what kind of latency are you looking for for that kind of thing?
[15:28] <eroomde> hmm dunno
[15:28] <eroomde> milisecondy
[15:28] <jonsowman> well when I get this thing running I see what it's like :)
[15:28] <SpeedEvil> tcp/ip can do microseconds
[15:28] <eroomde> cool
[15:29] <eroomde> i've just been simultaneously gooling
[15:29] <SpeedEvil> I know I get submillisecond pings from ethernet
[15:29] <eroomde> spacex use ethernet for their avionics coms
[15:29] <eroomde> between boxes and stages
[15:30] <SpeedEvil> The only two hosts I have connected by tehtenet report pings as 0.0ms - which I have doubts at
[15:31] <SpeedEvil> But hell - wifi gets close to a milisecond
[15:32] <Laurenceb> interesting pcb
[15:32] <Laurenceb> solder stencil?
[15:32] <Laurenceb> smd is _very_ neat
[15:33] <SpeedEvil> It'll never catch on.
[15:33] <SpeedEvil> Wirewrap is clearly the superior technology.
[15:33] <eroomde> it actually is too
[15:34] <Laurenceb> lmao
[15:34] <griffonbot> Received email: Oliver de Peyer Astrobiologist "[UKHAS] Re: Other materials to make a balloon out of?"
[15:34] <eroomde> really good contact pressure compared to solder, and more thermally flexible
[15:34] <eroomde> apollo guidance computer was done with wirewrap for that reason
[15:34] <jonsowman> Laurenceb: no stencil :)
[15:34] <Laurenceb> neat
[15:34] <eroomde> I'm going to change my email id to 'Edward Moore Rocket Scientist'
[15:34] <Laurenceb> heh
[15:35] <jonsowman> but with the help of a very, very good stereo microscope
[15:35] <Dan-K2VOL> Haha you should
[15:35] <eroomde> see what I mean about stereo microscopes?
[15:35] Action: Laurenceb is working on porting the crazy openpilot rf comms code to dactyl
[15:35] <jonsowman> eroomde: it is fantastic
[15:35] <Laurenceb> i use stereo microscope for _everything_ now
[15:37] <eroomde> do you ever do that thing where you're half way through soldering something and then get distracted by your magnified finger?
[15:37] <eroomde> 'ooo look at that, that's interesting, like a mountain range'
[15:38] <Laurenceb> heh
[15:47] <griffonbot> Received email: Brad Luyster "Re: [UKHAS] Re: Other materials to make a balloon out of?"
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[16:04] <Dan-K2VOL> sooo at my office there's music playing on speakers everywhere
[16:05] <Dan-K2VOL> And it's stuck on some satellite radio channel - accoustic indie stuff
[16:05] <eroomde> uhuh
[16:05] <eroomde> happy and cheery or grim and suicidal?
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[16:08] <Dan-K2VOL> I usually ignore it, but there was an upbeat, happy island guitar song refrain that kept repeating over and over and over, that I finally realized that it was actually saying: "I know what the senator wants - it's a blowjob, everyone wants a blowjob"
[16:08] <Dan-K2VOL> And no one could change the station :-P
[16:08] <eroomde> tune
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[16:11] <Dan-K2VOL> And indeed it is a real song: http://www.hearya.com/2011/06/10/stephen-malkmus-and-the-jicks-can-predict-who-wants-blow-jobs/
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[16:25] <griffonbot> Received email: Oliver de Peyer Astrobiologist "[UKHAS] Re: Patch antennae? Re: interesting item on ebay?"
[16:37] <eroomde> https://github.com/MrMEEE/bumblebee/commit/a047be85247755cdbe0acce6#diff-1
[16:37] <eroomde> ... lol
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[16:39] <fsphil> I believe that is filed under "oops"
[16:40] <eroomde> gosh yes
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[17:01] <griffonbot> Received email: Oliver de Peyer Astrobiologist "[UKHAS] Re: Other materials to make a balloon out of?"
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[18:03] <mattltm> Hi all :)
[18:05] <Dan-K2VOL> Hi Matt
[18:06] <mattltm> Hey Dan, hows life?
[18:08] <Dan-K2VOL> Good good, you?
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[18:18] <mattltm> Im cool thanks :)
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[18:38] Action: Laurenceb_ RAAGEEE
[18:39] <Laurenceb_> seems DMA is locking up my ram
[18:45] <Laurenceb_> math functions taking way to long to complete with dma - 40% longer
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[18:52] <mattltm> How useful would a board with an AVR, Ethernet, space for an RFM12 and a 2line LCD be?
[18:52] <Dan-K2VOL> It would be 72 useful
[18:52] <mattltm> lol
[18:52] <Dan-K2VOL> :-P
[18:53] <mattltm> I have a design for one and was thinking about getting a batch made up.
[18:53] <mattltm> Think I can do it for about £18 per board with through hole comps.
[18:53] <Dan-K2VOL> Nice
[18:53] <Dan-K2VOL> Sounds like a useful project
[18:54] <Dan-K2VOL> Make it fit an arduino shield footprint and you've got an instant market
[18:55] <mattltm> I like the idea of an onbaord lcd. May have to be MEGA size but with standard arduino headers.
[18:56] <mattltm> LCD along the back edge maybe.
[18:57] <mattltm> I like the london hackspace nanode design..
[18:57] <mattltm> http://wiki.hackspace.org.uk/wiki/Project:Nanode
[18:59] <SpeedEvil> mattltm: I'd question if a 2-line LCD would be worth it.
[18:59] <SpeedEvil> mattltm: Some cellphone LCDs are very cheap nowadays.
[18:59] <SpeedEvil> And they accept SPI/I2C drawing commands
[18:59] <mattltm> I was thinking abiut that too.
[18:59] <mattltm> It was more of a size issue.
[18:59] <SpeedEvil> They unfortunately don't have chargen though
[18:59] <mattltm> but a cell display is a great idea.
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[19:00] <Lunar_Lander> hello
[19:00] <mattltm> Hi Lunar
[19:02] <Upu2> Ava has a launch date , 24th July been advised by the CAA ". However, I have had a quick look at your application and it should be possible to approve this launch, providing that the correct co-ordination takes place with local airfields. "
[19:02] Nick change: Upu2 -> Upu
[19:04] <SpeedEvil> :)
[19:05] <Lunar_Lander> yay
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[19:13] <Laurenceb_> oh dear
[19:13] <Laurenceb_> someones got openpilot running on a pc
[19:14] Action: Laurenceb_ wonders if theyll crosscompile firefox or something
[19:14] <SpeedEvil> There are some very tiny 'PCs'
[19:15] <Laurenceb_> im talking x86
[19:15] <Laurenceb_> its so overengineered
[19:16] <Laurenceb_> e.g. to read a mems sensor theres a chain of about 5 different threads that need to run
[19:16] <SpeedEvil> yeah
[19:17] <Laurenceb_> give ~3% faster code but massive ram and flash use
[19:17] <SpeedEvil> Especially if you want to code your pilot in javascript running on firefox.
[19:17] <Laurenceb_> heh
[19:18] <Dan-K2VOL> Well, I was planning on installing it in my cessna like that so I could watch DVDs on the flight computer.
[19:18] <Dan-K2VOL> :-P
[19:19] <Laurenceb_> seems i need to find a way to make dma use a seperate bank of ram
[19:19] <fsphil> nice one Upu
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[19:22] <Lunar_Lander> Dan-K2VOL cool!
[19:22] <Lunar_Lander> xD
[19:23] <Dan-K2VOL> :-)
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[19:29] <SamSilver> 21Km of copper wire used http://qrz.com/db/w8ss
[19:30] <Lunar_Lander> Dan-K2VOL what is the status of WhiteStar?
[19:31] <Laurenceb_> he looks like hes gone to hell in a pickupcart
[19:41] <Lunar_Lander> ?
[19:46] <Laurenceb_> http://files.qrz.com/s/w8ss/w8ss.1050041626.jpg
[19:47] <Dan-K2VOL> Lunar_Lander unchanged, no work has gone on in a month. Need to see what the rest of the team is feeling like, I hope it's work!
[19:47] <fsphil> get the whip out
[19:47] <Dan-K2VOL> Ha I had that out all winter
[19:47] <Dan-K2VOL> I think that's why they're a little weary of it
[19:48] <Dan-K2VOL> Will be fun if we get to do the indoor demo at MakerFaire
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[19:48] <fsphil> well keep an eye out for that
[19:50] <Lunar_Lander> yeah
[19:50] <Lunar_Lander> wind is going westward in the summer, right?
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[19:53] <Dan-K2VOL> Arctic jet stream is just sort of aimless in summer
[19:54] <Lunar_Lander> ah
[20:03] <SamSilver> 7900 miles on less then 2 wattss > morse code
[20:03] <SamSilver> http://www.youtube.com/watch?v=-YtXcbpW9F8&feature=player_embedded
[20:04] <fsphil> I managed Australia on 500mW with wspr :)
[20:04] <SamSilver> wspr??
[20:05] <fsphil> http://wsprnet.org/
[20:05] <SamSilver> thanx
[20:06] <fsphil> not really for chatting, it's just a beacon
[20:06] <fsphil> but amazing range
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[20:09] <SpeedEvil> neat
[20:09] <Lunar_Lander> I had a thought on long-duration ballooning again today
[20:10] <SamSilver> do tell
[20:11] <Lunar_Lander> we have seen ZP balloons
[20:11] <Lunar_Lander> have we had any superpressure balloons done by amateurs?
[20:11] <m0lep> Hmmm... Even using 5W is proving... interesting from KI88jp...
[20:13] <fsphil> oooh
[20:13] <m0lep> ...I guess I'll just have to learn morse... somehow...
[20:13] <fsphil> I was using Oliver the other day, amazing mode
[20:13] <fsphil> it was decoding and I couldn't even see it on the waterfall
[20:14] <m0lep> How'd you find a caller?
[20:14] <fsphil> was with mattltm, we arranged it over irc
[20:15] <fsphil> at times you wouldn't know it was there
[20:16] <m0lep> Hmmm... Noise is getting worse here...
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[20:16] <fsphil> what your best contact so far?
[20:17] <m0lep> Canada on SSB
[20:17] <m0lep> Novoi
[20:17] <fsphil> with 5 watts?
[20:17] <m0lep> Novopavlovsk on PSK31
[20:17] <m0lep> Yep
[20:17] <fsphil> excellent
[20:18] <fsphil> I managed psk31 to Moscow a few nights ago
[20:18] <m0lep> Mind, he had a big beam and plenty of power...
[20:28] <eroomde> Lunar_Lander: I don't think there have been any amateur super pressure balloons
[20:29] <fsphil> whitestar would have been the first?
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[20:29] <Lunar_Lander> yea
[20:30] <Dan-K2VOL> Actually eroomde there's been a few attempts, but no true succesful flight that I've heard of
[20:30] <Dan-K2VOL> Those foil baloon flights could easily go superpressure, with the right precision inflation
[20:30] <SpeedEvil> Well - there was one nutter that tried it with party balloons. :)
[20:30] <Dan-K2VOL> Hehe
[20:31] <Lunar_Lander> xD
[20:31] <Lunar_Lander> well
[20:31] <Lunar_Lander> I think SP is the only chance to get a amateur balloon around the world
[20:31] <Dan-K2VOL> I was at the launch of Soli Deo Gloria 9 http://www.google.com/url?sa=t&source=web&cd=1&ved=0CBkQtwIwAA&url=http%3A%2F%2Fwww.youtube.com%2Fwatch%3Fv%3DEn_4zDPcJds&ei=HGj6Tb6KC8fn0QHu2rWDAw&usg=AFQjCNGspWukh27tGgJL3UhWL-v64zHvlg
[20:32] <Dan-K2VOL> By Robert Rochte, which did achieve pressurized float
[20:32] <Dan-K2VOL> However, it was not enough pressure, it sank when the sun dropped
[20:38] <Dan-K2VOL> Does anyone know how to make google stop wrapping search result links like that?
[20:43] <SamSilver> good night all
[20:43] <Dan-K2VOL> Night dave
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[20:47] <eroomde> Dan-K2VOL: don't think so
[20:47] <eroomde> it's all their guff to track you
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[00:00] --- Fri Jun 17 2011