highaltitude.log.20120123

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[00:08] <NigelMoby> http://aurorawatch.lancs.ac.uk/detectors/compass
[00:09] <NigelMoby> I might try that.
[00:10] <SpeedEvil> It's a little bit pointless nowadays
[00:11] <NigelMoby> true, but it'll b fun
[00:11] <SpeedEvil> Given I2C magnetometer chips that are very, very sensitive
[00:11] <SpeedEvil> ndeed
[00:11] <NigelMoby> u seen anything yet?
[00:18] <SpeedEvil> I had a look earlier - nothing
[00:18] <SpeedEvil> I currently have a patch on one eye
[00:19] <BrainDamage> medical reason, nocturnal vision, or general pirate look?
[00:19] <SpeedEvil> Nocturnal vision
[00:20] <SpeedEvil> It's much easier to adapt one eye
[00:20] <SpeedEvil> for an hour
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[01:34] <SpeedEvil> I just looked again - clouded over now.
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[08:19] <daveake> Prediction still not looking good for Sunday ... http://habhub.org/predict/#!/uuid=a79dca92247c48a2a2c93ebc308f2e249cc23818
[08:19] <daveake> Actuially worse than yesterday's
[08:22] <number10> according to the forecast there is a high pressure comming in for the weekend
[08:22] <number10> so I suspect things will improve
[08:22] <daveake> OK, maybe I won't cancel just yet then :)
[08:23] <daveake> I ran some tests on the cameras yesterday. Nearly 8 hours running time on the Canon A495, at one shot every 4.5 seconds.
[08:24] <number10> thats not bad. camera stuff is something I have yet to look into - I think Mrs10s getting a little annoyed that I am always stuck in my junk room (office)
[08:25] <daveake> :D
[08:25] <daveake> And 3 hours on the Zx1 when 2 AAs. For a flight I run it on 4 AAs, giving 6 which is about the SD capacity anyway.
[08:26] <number10> what size SD cards do you use in each?
[08:26] <daveake> For the A495, 8GB gives 4.5 hours and 16GB 9 hours.
[08:28] <daveake> For the Zx1, at HD resolution and 30fps, 16GB gives 3 hours + something (need to check that one). I've ordered a 32GB.
[08:30] <daveake> 3 hours should be enough for a typical flight including a bit of preparation time. Problem I found with that though on my first launch is that once the cameras are started there's time pressure on getting the thing launched. That's not good. So I'd rather have ample spare capacity.
[08:31] <number10> yes, I can imagine a launch is a bit stressfull. I was hopeing my brother and his kids would help out with this project but seems to be lack of interest
[08:32] <number10> which is a bit of a shame as it was the kids who started me off looking into it
[08:33] <daveake> :-). I'm sure someone here would be willing to come along and help. I would so long as I'm free.
[08:34] <number10> thanks - is a bit of a trek from where you live.
[08:34] <daveake> Well I usually have to go your way for my launches anyway :p
[08:35] <number10> but I am miles away from being ready - I have still got to make a mess on the floor with polystyrene
[08:35] <daveake> Mrs10 will love that
[08:35] <number10> indeed.
[08:36] <number10> and se has also got to drive a chase car - dont thinks shes to pleased about that - we need to do a dry run
[08:36] <daveake> Yeah, same here. Julie was in panic mode on the first chase. Now she's done 3 (she missed 1 when she was a bit icky) she's a lot calmer
[08:39] <number10> I find mrs10s driving a bit digital, and her car has stiff suspension - should be interesting
[08:40] <daveake> That'll be nice when you're trying to operate the tracking PC then :p
[08:41] <number10> :(
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[10:01] <fsphil> digital driving?
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[10:05] <gonzo_> (I used to drive digitally. The accelerator and brake being on or off)
[10:05] <fsphil> ah
[10:05] <fsphil> I don't do that, I think
[10:06] <gonzo_> only just joined so not a clue on the actuial subject
[10:06] <gonzo_> used to when I was a yoof
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[10:11] <daveake> Smooooth is the way. I've been on a few track days and the smoother you are the quicker you go. Better for the car and passengers too :)
[10:12] <costyn> smooth is good yes
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[10:13] <costyn> daveake: you have an elise right? or was that someone else on here?
[10:13] <daveake> Meee
[10:14] <costyn> very nice
[10:14] <daveake> It's the complete opposite of what's needed in a chase car, so fortunately I have an old Pug for that :)
[10:15] <daveake> That said, so far we've used MrsDave's car more often
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[10:45] <cuddykid> daveake: do you remember where you got your antenna that was on top of the chase car from?
[10:46] <cuddykid> ping WillDuckworth
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[10:47] <WillDuckworth> hiya
[10:47] <WillDuckworth> how's the glider?
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[10:49] <cuddykid> hi Will, glider is on hold atm, waiting for APM2 which should be a few weeks away :)
[10:49] <daveake> cuddykid I got that from ebay. I think fsphil noticed that they're cheaper at CPC, but I /think/ they are account-only. The one I got has a very small but very powerful magnet, and sticks on very well :)
[10:49] <cuddykid> daveake: awesome, will look into it, thanks
[10:50] <cuddykid> WillDuckworth: almost completed the next payload - sent off for permission for last weekend in feb and 1st 2 weekends in march, so hopefully everything will come together for then
[10:50] <daveake> Oh, and on my wife's car, it's *just* long enough to keep pinging against the roof in a Eurotunnel train :p
[10:50] <cuddykid> haha :P
[10:51] <cuddykid> WillDuckworth: any new plans for your next launch?
[10:52] <WillDuckworth> hey - yeah, looking at saturday - weather permitting
[10:53] <cuddykid> ahh, fingers crossed! - I'll more than likely be in nottingham on sat, but will try and tune in :D
[10:53] <WillDuckworth> cool - thanks :)
[10:53] <cuddykid> any new stuff on it?
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[11:07] <costyn> daveake: what kind of antenna is it? I'm still not clear on what I should be using on the roof of my car during the chase.
[11:07] <daveake> It's a bendy wire thing. You don't expect me to know one type from another do you? ;-)
[11:08] <daveake> OK, it's longer than a quarter-wav, which would be approx 16.4cm long. Whether this is a good or bad thing I don't know.
[11:09] <daveake> What's needed now is a radio expert ....
[11:09] <Darkside> \o
[11:09] <Darkside> someone called?
[11:09] <Darkside> you want a 1/4 wave on the target frequency
[11:10] <Darkside> which is approx 16.2cm or so
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[11:10] <Darkside> somewhere around that area will work fine
[11:10] <daveake> Mine is (much) longer and has a short loop in it, presumably to match the impedance.
[11:11] <daveake> It's probably a dual 2m/70cm one. Can't remember what the packet said.
[11:12] <daveake> So if I take some strong wire cutters to it :), would it then have a bit less gain but also be less directional?
[11:12] <Darkside> yes
[11:12] <fsphil> CPC don't need an account
[11:13] <daveake> ta
[11:13] <number10> do that after sunday daveake ;-)
[11:13] <fsphil> out of stock though: http://cpc.farnell.com/watson/wsm-270/wsm-270-mini-mag-antenna/dp/IT44456
[11:18] <navrac> this ones in tock
[11:18] <navrac> http://cpc.farnell.com/moonraker/12-028/dual-band-micro-antenna/dp/AP01509?in_merch=Products%20From%20This%20Range&MER=e-bb45-00001003
[11:18] <navrac> less gain though
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[11:21] <fsphil> the watson does have a very long thin cable, which can't be good
[11:21] <fsphil> although it squeezes in through the sunroof nicely
[11:22] <daveake> :-). Yeah, the thin cables do fit through window/door gaps nicely.
[11:22] <Darkside> fsphil: we tracker the last balloon through 30m of RG-58
[11:22] <Darkside> tracked*
[11:23] <Darkside> but we were using a FT-857 as a receiver, which helped
[11:23] <daveake> Have you upgraded to a bus now?
[11:23] <Darkside> pff no
[11:23] <Darkside> also we didnt have the 4wds this time
[11:25] <GW8RAK> daveake, reading the above, I would suggest that cutting a bit off your aerial isn't a good idea
[11:25] <navrac> I was told pico flights don't need permission for launch in the UK. - Anyone kow what the limits are on what does/doesnt?
[11:26] <daveake> GW8RAK - it's OK, it has worked very well for me, I've no intention of messing with it :)
[11:26] <GW8RAK> Aerial gain with a whip antenna is only gained by reducing the angle of maximum radiation, i.e. less signal going up into the air.
[11:27] <GW8RAK> For HAB'ing, it could be seen that higher angles would be best, but it depends on the range you'll be receiving signals at.
[11:27] <GW8RAK> Further out, the signal is at a lower angle so a higher gain could be an advantage
[11:28] <daveake> Yeah. Darkside's point is that he's usually close to the payload so he needs a wider angle rather than gain. Not always the case here.
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[11:30] <GW8RAK> If you want aerials, why not go direct to Moonraker or Waters and Stanton? (Other aerial suppliers are available)
[11:30] <daveake> For home use I'm considering getting one of these telecopic ali or steel poles to put in the garden. That would be used for tracking other people's payloads which usually start well over 100 miles away, so I'm considering a collinear (if it's good enough for Upu...)
[11:31] <daveake> Yeah, I got my Yagi from Moonraker. My current setup for home is opening the window and taping the yagi to the frame with tape :p
[11:31] <UpuWork> My colinear might be coming down
[11:31] <daveake> upgrading?
[11:31] <UpuWork> yup
[11:31] <UpuWork> az/el yagi
[11:32] <daveake> "az/el"?
[11:32] <daveake> Oh, azimuth/elevation
[11:32] <UpuWork> on a azimuth rotator and an elevation rotator
[11:32] <navrac> wobbles up and down too
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[11:33] <daveake> So basically an automated version of adjusting the tape :P
[11:33] <daveake> Typically balloons launched from Cambs go directly away from me, so I leave it fixed
[11:34] <navrac> I've got a zl special 70cm yagi - its good but quite tricky to set up - very sensitive to anything near it
[11:34] <fsphil> navrac, you don't need permission if the entire payload + balloon fits within a 2m sphere
[11:34] <fsphil> 2m in any direction I think is the wording they use
[11:35] <navrac> thanks - just found the regs - so i could use an air swimmer shark for a pico flight then!
[11:35] <fsphil> yep!
[11:35] <fsphil> now that would be a weird sight
[11:35] <navrac> Small balloon means a balloon of not more than two metres in any linear dimension at any stage of its flight, including any basket or other equipment attached to the balloon;
[11:35] <number10> have you got a link to the regs navrac?
[11:35] <daveake> Buzz Lightyear balloon :)
[11:36] <navrac> http://www.caa.co.uk/default.aspx?catid=503
[11:36] <number10> ta
[11:36] <navrac> http://www.legislation.gov.uk/uksi/2009/3015/contents/made
[11:36] <daveake> Next job, when I get some time, is a pico payload
[11:36] <navrac> this ones a better link
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[11:37] <navrac> The winds aernt going to e good here till the summer as I'm so near the east coast, so I'm going to stick up a couple of pico's to test the payloads
[11:39] <navrac> at £40 for 3 foil balloons and a disposable cylinder it seems churlish not to
[11:39] <daveake> http://www.ebay.co.uk/itm/24-Disney-Toy-Story-BUZZ-LIGHTYEAR-Foil-Shape-Balloon-/120657380582?pt=UK_Home_Garden_Celebrations_Occasions_ET&hash=item1c17bd84e6
[11:40] <daveake> Though I'd need a round foil balloon too to carry the payload weight :)
[11:41] <gonzo_> would a multiple small balloon launch still be considered a small balloon?
[11:41] <daveake> I don't know, but my guess is that so long as everything is with than 2m limit you're fine
[11:42] <navrac> yep i think so - strangely the dont give a neck lift figure for buzz....
[11:42] <daveake> "not enough" I'm sure :)
[11:43] <daveake> I have some of RocketBoy's foil balloons, and I'm thinking that one of those (which will carry my payload fine) plus Buzz as an ornament will work.
[11:44] <navrac> my rough calc gives 20g lift
[11:45] <navrac> 1.6 cubic feet of helium
[11:46] <daveake> Payload is going to be near 30g
[11:46] <navrac> although this buzz looks like is has enough lift http://www.nypost.com/p/news/local/manhattan/lightyear_ahead_of_his_time_GBBEKDBMXAgttWrZsKH5JN
[11:46] <daveake> lol
[11:46] <daveake> Slightly over the 2m limit
[11:47] <navrac> so you'll need to apply for permission then
[11:48] <daveake> And a bank loan
[11:49] <navrac> 14000 cu ft of helium - thats a lot of cylinders
[11:50] <navrac> 16,200 cubic feet actually - blimey
[11:50] <gonzo_> for the UK it would have to be a flying pig
[11:52] <navrac> 61 N30 cylinders or about £8000
[11:52] <navrac> yep
[11:52] <Elwell> gonzo_: over battersea? been done :-)
[11:52] <daveake> You could probably get a discount :)
[11:53] <navrac> http://www.bigfatballoons.co.uk/product.php?products_id=322
[11:53] <navrac> this ones a bit more affordable
[11:54] <navrac> £20 prefilled
[11:56] <Laurenceb> http://www.laptopsdirect.co.uk/Toshiba_A1_AC100-10U_-_nVIDIA_Tegra_T20_512MB_Ram_eMMC_8G_Drive_10.1_Wide__A1-PDN01E-00500EEN/version.asp#maindesc
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[11:56] <Laurenceb> nice price
[11:58] <daveake> With 3G too - nice
[12:00] <Laurenceb> ubuntu runs on it and theres full schematics for the mainboard
[12:02] <fsphil> I've not seen a computer come with a schematic since the C64
[12:02] <navrac> my gps chips are scheduled for delivery tomorrow - excellent, my payload will be ready soon
[12:03] <Laurenceb> looks like it has footprint for magno+accel sensors
[12:03] <Randomskk> I don't think it's /meant/ to come with it
[12:03] <Laurenceb> heh
[12:03] <Laurenceb> im tempted to buy one to hack
[12:03] <fsphil> aaah
[12:04] <Randomskk> the schematics do say "confidential" and "secret data" and a disclaimer about who owns it and why it should not leave that division of the company and that it may not be disclosed to any third party
[12:04] <Laurenceb> it needs CAD files - im not sure how much space there is under the keyboard
[12:04] <Randomskk> why exactly someone chose to leak schematics to a netbook I'm less sure
[12:04] <Laurenceb> so ubuntu could be made to run
[12:04] <Laurenceb> keyboard and sound integrate over i2c+gpio
[12:05] <Laurenceb> looks like everything is supported now, so its actually useful :P
[12:05] <fsphil> an i2c sound card?
[12:05] <Laurenceb> nope
[12:05] <Laurenceb> config stuff aiui
[12:05] <fsphil> ah
[12:05] <Laurenceb> otherwise the amplifier wont work for the onboard speakers
[12:06] <Laurenceb> #ac100
[12:07] Action: Laurenceb was wondering if you could integrate gps etc under the keyboard
[12:07] <Laurenceb> for hab use
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[12:41] <cuddykid> anyone know what the difference between the "ALT" and "IGO" package for 5V regulator (eagle) is? Both have same pinouts
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[13:31] <Laurenceb> probably nothing
[13:32] <Laurenceb> theres lots of repetition in there
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[14:13] <daveake> Hmmm ... so I bought an A490 from the Canon outlet on ebay ...
[14:13] <daveake> .... and it's been delivered in a rather large and heavy box ...
[14:13] <daveake> ... which also contains a Canon printer :/
[14:15] <Randomskk> ...haha
[14:15] <Randomskk> bonus?
[14:15] <daveake> Depends how honest I'm feeling today :D
[14:15] <daveake> I did check to make sure I didn't accidentally order the wrong thing :)
[14:15] <number10> nice
[14:15] <cuddykid> :O
[14:15] <cuddykid> very nice
[14:15] <cuddykid> (if it's a good printer) haha
[14:16] <cuddykid> daveake: did you get the camera aswell?
[14:16] <daveake> Oh yes, camera as well.
[14:16] <cuddykid> marvellous
[14:16] <daveake> Yeah, it's one of their small photo printers. We already have one of those!
[14:16] Action: cuddykid thinks about a printer in space...
[14:16] <cuddykid> *near space ;)
[14:16] Action: daveake thinks about the extra helium
[14:16] <cuddykid> lol
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[14:18] <daveake> I've told them :D
[14:18] <daveake> If they don't want it it'll go straight on ebay :D
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[14:39] <davejay> Hello everyone, I'm starting to build my own project. I've got a lot of the parts but I'm after a NTX2 module, where are these stocked in the UK?
[14:39] <daveake> Farnell or direct from Radiometrix
[14:40] <fsphil> both, although radiometrix might be a bit cheaper
[14:40] <daveake> Might be ... postage is higher.
[14:40] <davejay> Ah thank you!! I was just looking at Farnells website.
[14:40] <daveake> Farnell stock the 434.650MHz one only.
[14:41] <daveake> For Radiometrix you have to call as it's not in their online purchase system (well, wasn't last time I looked)
[14:42] <davejay> Right ok....I'll make some calls. You say Farnells only stock the 434.650, is this a problem?
[14:42] <daveake> That's the one I've flown and it's been fine. I think some repeaters use that frequency so potentially it could be a problem.
[14:43] <zyp> man, you guys have confusing nicks
[14:43] <daveake> lol
[14:43] <fsphil> haha, was just thinking that
[14:43] <eroomde> it's nevfer ever been a problem on 650 in allmy years
[14:43] <davejay> Thank you for the tips..i'll try contacting radiometrix & see what they say.
[14:44] <eroomde> .075 has been by far more problematic
[14:44] <daveake> I don't recall anyone having any issues with it either
[14:44] <fsphil> the signal is much too weak to bother anyone
[14:44] <zyp> I thought you were talking to yourself first
[14:44] <daveake> And it seems that more people have local interference on .075
[14:44] <fsphil> except the people who go out of their way to be bothered, but just ignore those
[14:44] <eroomde> zackly
[14:44] Nick change: daveake -> oldgit
[14:44] <davejay> Well all I can do but try!!!
[14:44] <oldgit> Does this help?
[14:44] <eroomde> it's used by some automatic devices
[14:44] <davejay> lol
[14:45] <fsphil> 434.075 is much busier there
[14:45] <oldgit> MrsDave often complains that the remote control garden lighting doesn't work when I'm HAB testing
[14:45] <fsphil> no car keys work outside by house when I'm testing :)
[14:45] <oldgit> And the remote temp sensor ... and the oil tank gauge ... and ....
[14:45] <gonzo_> it's fun to key down on 433.9 and see how many alarms you can set off
[14:46] <oldgit> lol
[14:46] <gonzo_> don't get many these days
[14:46] <fsphil> there's a tesco car park not far from me....
[14:47] <davejay> cheers for the help guys
[14:48] <gonzo_> years ago (as the story goes) there was an AR rptr on an IBA building. One day they has a conf and used that as an oppertunity to change the fleet of cars. They unloaded all the transoporters in the car park and left them. But at kicking out time, the rptr was then on and none of them could get into their cars.
[14:49] <gonzo_> the move from 418meg for key fobs was a bad choice
[14:50] <oldgit> Climbing down from the trees waa a bad choice :)
[14:50] <gonzo_> and some thought that even the trees was a bad move, and that they should nenevr have crawed out of the oceans
[14:51] <oldgit> :D
[14:51] <gonzo_> (even those who had digital watches)
[14:51] <oldgit> eroomde Looking doubtful for Sunday - http://habhub.org/predict/#!/uuid=07959bbd4a0dd0c86a08e6afd13470e95ec62704
[14:52] <gonzo_> (I'm demonstrating being an oldgit too!)
[14:52] <oldgit> :D
[14:55] <LazyLeopard> Slightly soggy landing there...
[14:56] <oldgit> It'd make a change from Aldeburgh
[14:57] <LazyLeopard> Heh. Aldeburgh isn't that bad. There used to be an excellent chippie. Of course, North Sea or English Channel doesn't make that much difference. Morechance of landing on a container ship in the Channel, maybe...
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[14:58] <oldgit> Oh, the chips were nice :-). Slightly expensive chips though considering ...
[14:59] <LazyLeopard> If you factor in the cost of the camera sinking slowly beneath the waves... ;)
[15:00] <oldgit> I was :-)
[15:01] <number10> is that you daveake - I thought I recognised you
[15:01] Nick change: oldgit -> daveake
[15:01] <daveake> We had a sudden Dave overload
[15:02] <number10> yes, I saw number11
[15:02] <daveake> :D
[15:03] <SamSilver_> = dave
[15:03] <number10> why SamSilver_ BTW?
[15:04] Nick change: fsphil -> fsdave
[15:04] <SamSilver_> My name is david
[15:04] <number10> but the nick?
[15:04] <cuddykid> hi fsdave lol
[15:05] <daveake> fsdave So now you have the key to getting notams sorted quickly :)
[15:05] <SamSilver_> number10: my wife is Sam and I was asking her for a nick
[15:05] <number10> ic
[15:05] <SamSilver_> and she said "Sam's silver lover" I shortened it to SamSilver
[15:05] <number10> that was wise to shorten it I think
[15:05] <SamSilver_> lol
[15:06] <daveake> lol
[15:06] <number10> I dont think many people would be talking to you otherwise
[15:06] Nick change: fsdave -> fsphil
[15:06] Action: fsphil is in no rush to launch this year :)
[15:06] Nick change: SamSilver_ -> Dave
[15:06] <Dave> SamSilver
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[15:07] Nick change: Dave -> Guest10582
[15:07] <fsphil> You've been nickserved
[15:07] Nick change: Guest10582 -> SamSilver_
[15:08] <number10> I was interested you said people had local interference on 434.075 daveake - especially as before I purchased I asked the question on here
[15:08] <number10> dunno who it was, but someone said .075 had less interference
[15:09] <fsphil> .650 used to be noisier here
[15:09] <fsphil> but it seems to have swapped in the last year
[15:09] <daveake> I guess it varies.
[15:09] <daveake> When we had 2/3 launches at once, it seemed to me that people were having more luck on .650
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[15:23] <jcoxon> hey all
[15:23] <daveake> 'noon
[15:23] <jcoxon> half day woohoo
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[15:24] <daveake> :-)
[15:24] <NigeyS> bloody part timer :p
[15:24] <jcoxon> uhuh
[15:24] <jcoxon> never do any work
[15:25] <NigeyS> nah u work hard james fair play :_
[15:25] <jcoxon> hehe i've got half day as i'm legally not allowed to work this afternoon
[15:25] <jcoxon> since working hte weekend and last week
[15:25] <costyn> do SMA female to BNC male converters exist? I want to get this antenna http://www.firsttrade.de/xtm/Outdoor-und-Freizeit/Funktechnik/Antennen/Antennen-PMR/Albrecht-Minimag-440-SMB-65745::262.html but it has a SMA male on it and my 817 has a BNC female on it
[15:25] <NigeyS> ahh uve done ure max hours already ?
[15:25] <jcoxon> yeah
[15:25] <costyn> I can't seem to find the right bit
[15:27] <NigeyS> hrm not sure costyn
[15:27] <zyp> SMB is not SMA
[15:27] <zyp> anyway, just cut the cable and mount a BNC connector on it?
[15:27] <costyn> zyp: that could work
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[15:41] <davejay> Just been looking on random solutions website at the balloons. For my first flight would a 500g Hwoyee balloon be suitable? I don't really want to over stretch things for my first go!
[15:42] <NigeyS> depends on ure payload weight, but yeah 5 or 600 gram would be fine
[15:42] <davejay> Thank you, it's not going to be a heavy payload. Just the basic tracking bits & a small camera.
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[15:43] <NigeyS> ah you'll be fine then, you'll just get an earlier burst with a smaller balloon that's all
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[15:43] <daveake> Should be fine. My current payload is less than 800g and that has 2 cameras and a phone as a backup tracker. Your should come in around 500-600g, and a 500g balloon is just fine for that.
[15:44] <davejay> thanks nige, I think i'll start off small & work my way up.
[15:44] <davejay> and dave!
[15:44] <NigeyS> http://www.cusf.co.uk/calc/
[15:45] <NigeyS> have a play with the numbers
[15:45] <davejay> cheers, just bookmarked that
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[15:45] <hibby> aye
[15:45] <daveake> For a first flight, so long as you can get to 27km or so you'll get good photos
[15:45] <NigeyS> hibsterrrrrrr
[15:46] <davejay> thats the plan :) going to take a while to get it all put togther & to testing stage.
[15:47] <hibby> howsit going NigeyS?
[15:47] <daveake> Yep. My first one took 5 months from "I'll have a go at that" to 1st flight. Could have done with more testing though! :p (a last minute change messed up the telemetry somewhat)
[15:47] <NigeyS> not to bad hibby, yaself?
[15:48] <hibby> re-normalising my sleep pattern
[15:48] <hibby> work in progress
[15:48] <daveake> Ooer, just got a reply from the Canon Outlet re the printer they sent me along with the camera I ordered ...
[15:48] <davejay> Hopefuly it'll all be done by the summer. As long as I get my chores (decorating) done first!
[15:48] <NigeyS> lol sounds fun
[15:48] <daveake> "This is correct, this camera does come with a printer, the product set up is incorrect in eBay and will be corrected soon. This is our mix up, so you can actually keep the printer if you like."
[15:48] <daveake> :D:D:D
[15:49] <hibby> NigeyS: i've become nocturnal, it's pretty minging.
[15:49] <NigeyS> ahh been there, done that, still semi-nocturnal now :/
[15:49] <NigeyS> daveake, i have the hall stairs and landing to "decorate" next week :(
[15:50] <daveake> :-(. So what does this do to your launch plans?
[15:52] <NigeyS> not alot actually, the payloads pretty much all ready to go, probably going to be the 4th feb though not the 28th jan, depends when matt is coming down.
[15:53] <daveake> Prediction for 29th is looking grim, so I'll probably have to knock back to 4th or 5th
[15:53] <NigeyS> yikes :/
[15:53] <daveake> (and keep going till the summer maybe!)
[15:53] <NigeyS> as said, if we need to clear time for each other, we can sort something out
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[15:54] <daveake> Last prediction was quite close to Cherbourg!
[15:54] <NigeyS> blimey
[15:55] <daveake> It's a photographic payload so I want it back :). If it was an altitude attempt I'd be happy to let it go.
[15:59] <navrac> if you do a really silly ascent rate surely it will go up pretty fast and pop, then with a minimal parachute end up somewhere close
[16:00] <daveake> Hold on I'll see what I could do ....
[16:01] <navrac> If it eds up in Aldebugh like everyone else then i could grab it for you
[16:02] <daveake> Prediction says due south, basically, so nowhere near Aldeburgh!
[16:05] <daveake> Well... can't get the ascent rate that high presumably because the balloon gets bigger and creates more drag. This is about the best I can do ... http://habhub.org/predict/#!/uuid=8349258cb3fdc9b8207a2b4ceb635682163b3a9d
[16:05] <daveake> With that wind direction even relocating to one of the Cambs sites wouldn't work - too close to London
[16:06] <daveake> Maybe the prediction will change during the week, but I think the most likely outcome is a delay
[16:07] <daveake> I should have applied to launch from Yorkshire :D
[16:11] <daveake> So this "free" printer sells on ebay for £40+ ... and I only paid £22 for the camera it came with :D
[16:17] <gonzo_> it's morally wrong to let a fool keep his money
[16:17] <gonzo_> (Though I often wonder how the fool got his money in the first place. I must be in the wrong job!)
[16:19] <daveake> :). The vendor said I could keep it - who am I to argue? :)
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[17:06] <Laurenceb> SpeedEvil: http://www.mk-fr.info/forum/index.php?topic=651.0
[17:06] <Laurenceb> looks like your idea :P
[17:11] <SpeedEvil> Somewhat, yes.
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[17:23] <W0OTM> howdy
[17:32] <cuddykid> g'day :)
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[18:32] <Upu> Well for information I screwed up and managed to put vbatt i.e 6V through a uBlox6
[18:32] <Upu> and then I soldered it really badly
[18:32] <Upu> and had to soak up solder that had leaked between the pins
[18:32] <Upu> yet after all this abuse its still working great
[18:32] <daveake> blimey
[18:34] <zyp> uBlox6 - Upu proof!
[18:34] <navrac_> is this the antenova module?
[18:34] <daveake> It's a persuasive sellling feature
[18:34] <navrac_> not navrac proof - not getting anything out of mine
[18:34] <zyp> I have still not done anything with mine
[18:35] <navrac_> i presume it should just start sending stuff when you turn it on sadly nothing coming out
[18:35] <Upu> no its a Sarantel antenna
[18:35] <Upu> 1 sec
[18:35] <navrac_> and i cant find my pocket scope
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[18:38] <Upu> http://imagebin.org/195101
[18:38] <Upu> thats the Swift PCB and Ava PCB next to each other
[18:40] <cuddykid> talking of PCBs my schematic is slowly coming along :D yfrog.com/mgrbap
[18:41] <cuddykid> Upu: where did you get that (sma?) connector from? I've been looking everywhere!
[18:41] <Upu> China RF
[18:41] <Upu> 99p each
[18:41] <Upu> want link ?
[18:41] <Upu> hey looks good cuddykid
[18:41] <cuddykid> Upu: yes please! :D , and thanks
[18:41] <Upu> what voltage are you running at ?
[18:41] <cuddykid> 5v
[18:42] <cuddykid> ntx2 that is
[18:42] <Upu> GPS runs at 3.3 ?
[18:42] <cuddykid> ohhh, I thought 5v? I'll change :)
[18:42] <Upu> just run it all at 3v3
[18:42] <daveake> 6V is the new 3V3
[18:42] <cuddykid> temp sensors need 5v I believe
[18:42] <Upu> Arduino Pro runs at 3v3 8Mhz
[18:42] <nosebleedkt> hi all
[18:42] <Upu> nah they work fine at 3v3
[18:42] <Upu> DS1821 ?
[18:43] <daveake> cuddykid what temp sensors?
[18:43] <cuddykid> type Bs
[18:43] <cuddykid> DSblahblah B
[18:43] <Upu> check data sheet
[18:43] <daveake> Yep
[18:43] <daveake> DS18B20 runs on 3V3
[18:43] <cuddykid> I've been running them on 5v - but yeah, could do 3v3
[18:43] <daveake> >= 3V3 I mean
[18:44] <Upu> http://stores.ebay.co.uk/chinarf
[18:44] <daveake> It's nice if you can run everything off the same voltage
[18:44] <cuddykid> Upu: I may just run the ublox from 3V3 pin on arduino
[18:44] <cuddykid> Upu: thanks
[18:44] <Upu> SMA through hole Jack right angle PCB Mount Medium version#1199
[18:44] <Upu> make sure you get that version
[18:45] <Upu> if you're stuck mail cs@rfsupplier.com they speak english
[18:45] <Upu> also they do those natty SMA to SMA patch leads
[18:45] <cuddykid> brill thanks
[18:45] <Upu> that are £9 on Farnell but about £1.29 on there
[18:46] <number10> wow Upu I just looked at your pic - you are using the ultimate lithium while debugging - bit expensive?
[18:47] <Upu> no these are the original ones from testing Ava
[18:47] <Upu> they are about 2 years old
[18:47] <Upu> can't use them for flight so keep using them
[18:47] <number10> :)
[18:47] <Upu> then don't seem to want to go flat
[18:47] <number10> I thought you had a cheap source for a moment
[18:48] <cuddykid> my lithiums won't die either!
[18:48] <Upu> well Tescos £5 for 4 atm
[18:48] <cuddykid> used them on flight and used them for ages after and still strong
[18:48] <Upu> but I ran these for 24 hours outside at -8C last winter
[18:48] <cuddykid> wow
[18:48] <Upu> and all the testing on Ava1
[18:49] <Upu> just took them out before flight and replaced with a fresh set
[18:49] <number10> thats pretty good going
[18:50] <cuddykid> hmm going to email them as the closest one I can find is: http://www.ebay.co.uk/itm/SMA-right-angle-pcb-thru-hole-jack-RF-Connector-/300384873087?pt=UK_Computing_Networking_SM&hash=item45f0556a7f#ht_3068wt_870
[18:50] <Upu> pin spacing is wrong
[18:50] <Upu> I have 10 of those if you want them
[18:50] <Upu> you need the smaller pin spacing
[18:50] <cuddykid> 10 of the wrong ones?
[18:51] <Upu> yeah 1 sec I'll show you
[18:52] <Upu> http://imagebin.org/195107
[18:52] <joph> cuddykid, china :D
[18:52] <Upu> left is correct and matches Eagle libraries
[18:52] <Upu> right is the one you've got
[18:53] <cuddykid> ahh I see, will email and get some of them sent :D
[18:53] <Upu> 20 x SMA through hole Jack right angle PCB Mount Medium version#1199 <- dem
[18:54] <cuddykid> ahh - found them on their website
[18:54] <Upu> they do some nice panel mount SMA's for the antenna too
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[18:55] <cuddykid> http://www.rfsupplier.com/thru-hole-jack-right-angle-mount-medium-version-p-1199.html
[18:55] <daveake> UpuBest price I've found on the Energizers - http://www.7dayshop.com/catalog/product_info.php?cPath=777_3&products_id=113114
[18:56] <Upu> that is a good price
[18:56] <cuddykid> daveake: that's good
[18:56] <Upu> ok afk a few mins
[18:56] <cuddykid> Upu: is the above correct? And yeah, I'm going to get some panel stuff
[18:56] <daveake> I'm so enjoying my new wide desktop - http://imgur.com/AjwIQ :)
[18:57] <cuddykid> daveake: :O
[18:57] <cuddykid> you need the special trading keyboard then you're all set ;)
[18:58] <daveake> Need a widescreen mousemat :D
[18:58] <daveake> Din dins
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[18:59] <SpeedEvil> Woo - my 40m^2 of polycarbonate arrives tomorrow.
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[18:59] <joph> wow, 4 screens :D
[19:00] <SpeedEvil> Greenhouse leakproof!
[19:00] <fsphil> pics joph :)
[19:01] <joph> <daveake> I'm so enjoying my new wide desktop - http://imgur.com/AjwIQ :
[19:01] <Upu> Thats the best setup I've seen for running IRC Daveake
[19:01] <Upu> where did he go ?
[19:01] <joph> i don't know :D
[19:02] <number10> must have done a ctrl+alt_del on the wrong keyboard
[19:02] <NigeyS> lol
[19:03] <NigeyS> SpeedEvil, you hope :p
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[19:04] <SpeedEvil> NigeyS: I'm using 10mm thick twinwall polycarbonate - and mounting it so that the outer skin is not pierced.
[19:04] <NigeyS> ahh in that case, its rather watertight! lol
[19:04] <NigeyS> 40m2 is alot mind, big greenhouse ?
[19:05] <SpeedEvil> Which is fun. I'm planning on putting ~9mm*9mm timber up the middle - pre-drilled - and short self-tapping screws in
[19:05] <SpeedEvil> To attach it to bars.
[19:05] <SpeedEvil> Naah - 8 is for greenhouse.
[19:05] <NigeyS> ohh sweet! we need construction pics! :D
[19:05] <SpeedEvil> 20 is for bathroom.
[19:05] <SpeedEvil> Coincidentally, the same structure would work for wings.
[19:05] <NigeyS> hah thats handy!
[19:05] <SpeedEvil> Including a solid sheet of polycarbonate, to form a 'shower tray' 2.4*1.2m
[19:06] <SpeedEvil> Allowing for exapansion is fun
[19:06] <SpeedEvil> It gets ~12mm longer when hot
[19:06] <NigeyS> wow thats alot
[19:06] <SpeedEvil> 4m span
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[19:18] <cuddykid> am I right in thinking that for a FET: drain = vcc and source = GND?
[19:19] <Hiena> Nfet or Pfet?
[19:20] <cuddykid> N type
[19:20] <cuddykid> "N channel"
[19:21] <Hiena> Source to the ground, drain to the power.
[19:21] <cuddykid> thanks
[19:21] <Hiena> But put some resistor between the the power and the drain.
[19:21] Nick change: bcw-AFK -> bcw
[19:22] <Hiena> Or it will release the magic smoke.
[19:22] <hibby> woo!
[19:22] <hibby> magic smoke is best smoke
[19:22] <Hiena> Yeah, but better if it's inside the package.
[19:23] <Hiena> If you release the part stop working.
[19:28] <fsphil> boo, lots of people saw the aurora last night
[19:28] <fsphil> all I got was cloud
[19:28] <fsphil> *huffs*
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[19:41] <number10> daveake_: your desk looks like apollo mission control with all those screens
[19:42] <daveake_> :)
[19:44] <daveake_> Complete with model spaceship flying above :)
[19:44] <x-f> fsphil, have you got clouds tonight too? aurora is expected as low as 55N
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[19:46] <fsphil> x-f, clear so far - jupiter and venus nice and bright when I was walking the mutt
[19:46] <cuddykid> how come this setup doesn't work: vcc -> nichrome -> drain (MOSFET)&. source (MOSFET) -> GND
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[19:48] <fsphil> that should
[19:49] <cuddykid> right, appears that it works the other way round :S
[19:49] <cuddykid> so: GND -> nichrome -> drain &. source -> VCC
[19:51] <cuddykid> arghh
[19:51] <cuddykid> nope, that works whether gate is on or off
[19:51] <fsphil> how are you switching it?
[19:51] <cuddykid> 5v to gate via 10K (I think) resistor
[19:52] <cuddykid> yeah 10K
[19:53] <daveake_> If it's conducting with the gate off (low), it's broke or the wrong way round. Haven't we done this one before?
[19:54] <cuddykid> daveake_: yeah :( I had it working fine, now can't get it working again
[19:54] <daveake_> What changed?
[19:55] <Hiena> cuddykid: the MOSFET-s has a reverse diode between the drain and the source
[19:56] <cuddykid> daveake_: I was transferring from board - didn't have battery holder so waited a few days and now when I hook it up it won't work :S
[19:56] <Hiena> Connect the wires by the following way: Drain to the nichrome an the supply, source to the GND and at least 100k resistor between the gate and the source.
[19:58] <cuddykid> let me get a photo
[19:58] <Hiena> The fets damned sensitive to the electrostatic charges. If the drain isn't connected to the source, it could turn on even from the ambient electrostatic charge.
[20:05] <cuddykid> http://flic.kr/p/bhx75r - ignore the blue wire on the very left it's not connected to anything and I accidentally added it (needs to be removed)
[20:15] <daveake_> 1 - I think the FET connections look OK. 2 - Any particular reason you've got the vero upside down? 3 - I hope the Nichrome isn't touching the vero tracks
[20:22] <cuddykid> nichrome isn't touching hero and - no reason no, by mistake :P
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[20:25] <Lunar_Lander> hello
[20:26] <Lunar_Lander> daveake_: is part 5 of the movie done?
[20:28] <Lunar_Lander> daveake_: just reading how you got a printer along with your camera
[20:28] <daveake_> No :(
[20:28] <daveake_> :)
[20:28] <Lunar_Lander> last time I ordered at the sparkfun retailer and then I wrongly ordered the male headers four times
[20:28] <Lunar_Lander> and when I checked I also got two barosensors
[20:28] <Lunar_Lander> but on these I ordered and they calculated only one
[20:28] <Lunar_Lander> strange
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[20:33] <Lunar_Lander> daveake_: what was onboard of Cloud 1? the camera, the Lassen IQ (IIRC), NTX2 of course
[20:33] <Lunar_Lander> and more things?
[20:35] <daveake_> Camera, video, Arduino, Jupiter 11 GPS, NTX2, SMS tracker
[20:35] <Lunar_Lander> ah
[20:35] <Lunar_Lander> so the onboard computer just took GPS data and sent them on over the radio
[20:36] <Lunar_Lander> because the description of the movie says "measuring equipment"
[20:36] <daveake_> Oh, and DS18B20 x 2, SCP1000, SD card for logging
[20:36] <Lunar_Lander> ah
[20:36] <Lunar_Lander> is the one thousand a pressure sensor?
[20:36] <daveake_> Yes
[20:37] <Lunar_Lander> cool
[20:37] <daveake_> and temp
[20:37] <daveake_> Used it in Buzz too
[20:37] <Lunar_Lander> yeah
[20:37] <Lunar_Lander> does it work good?
[20:37] <Lunar_Lander> and is it from Bosch?
[20:37] <daveake_> Yes. No.
[20:37] <Lunar_Lander> because the BMP085 is also a combined one
[20:37] <Lunar_Lander> ah
[20:38] <daveake_> I've ordered a BMP085 for my pico payload
[20:38] <Lunar_Lander> did you use a "normal" SD or that OpenLog?
[20:38] <Lunar_Lander> ah
[20:39] <daveake_> Just an SD card with an Arduino FAT library
[20:40] <Lunar_Lander> ah
[20:40] <Lunar_Lander> I think the problem is that arduino doesn't work with SDHC
[20:40] <Lunar_Lander> and old cards get rare
[20:41] <Upu> http://www.batc.tv/ch_live.php?ch=5
[20:41] <Upu> select 2E0UPU
[20:41] <Upu> and watch fsphil remotely program a AVR
[20:41] <Upu> all done over ipv6 for added geek cred
[20:41] <Lunar_Lander> Upu I just mentioned that in #sparkfun
[20:41] <Lunar_Lander> xD
[20:41] <Lunar_Lander> (20:40:45) Akaishi: after we get Cookie Over IP done burritos will have to be next
[20:41] <Lunar_Lander> (20:41:04) Lunar_Lander: isn't it this summer that they'll introduce IPv6?
[20:41] <Lunar_Lander> (20:41:14) Lunar_Lander: then they can introduce that too Akaishi
[20:41] <Lunar_Lander> (20:41:45) Akaishi: people will have a burritoport address to go with their IPv6
[20:42] <Upu> yes
[20:42] <Upu> June ipv6 day and not turning it off
[20:42] <Lunar_Lander> yea
[20:43] <Lunar_Lander> do people have to do something?
[20:43] <Upu> yeah switch it on
[20:43] <Lunar_Lander> or will everything be done automatically
[20:43] <Lunar_Lander> oh ok
[20:43] <daveake_> Lunar_Lander I have several old cards that came with old cameras :)
[20:43] <Upu> likely a lot of consumer equipment won't support it
[20:43] <Lunar_Lander> so I won't have internet from June on if I don't take action?
[20:43] <fsphil> I've been using ipv6 on and off for a fair few years
[20:43] <Lunar_Lander> it's like digital TV!
[20:43] <Lunar_Lander> they'll turn that off in April here
[20:43] <chris_99> whats the blue board Upu?
[20:44] <Upu> the machine fsphil is remoted into is totally ipv6
[20:44] <Lunar_Lander> the analogue TV I mean
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[20:47] <Upu> hey chris_99 thats Swift
[20:48] <Upu> a board designed to switch to APRS over Europe
[20:48] <chris_99> ooh cool
[20:50] <daveake_> Can the APRS part be legally tested in the UK somehow?
[20:50] <Upu> ok the ground
[20:51] <daveake_> Cool
[20:51] <daveake_> Otherwise it would be a bit of a risk :)
[20:51] <Upu> ah well it has an NTX 2 on there too
[20:51] <Upu> you still watching feed ?
[20:51] <daveake_> no, but I can fix that ...
[20:52] <daveake_> ok
[20:52] <Upu> ok read
[20:52] <Upu> rear
[20:52] <Upu> NTX2 for normal 50 baud
[20:52] <daveake_> yep
[20:52] <Lunar_Lander> oh no
[20:53] <Upu> front HX1 for APRS
[20:53] <daveake_> ok
[20:53] <Lunar_Lander> the PCB Service of Everyday Practical Electronics doesn't have the Thunderstorm Monitor anymore
[20:53] <Upu> don't have 2 NTX2 modules to show both in place
[20:54] <daveake_> Nicely present :)
[20:54] <daveake_> ed
[20:55] <daveake_> ooh pink
[20:55] <fsphil> lol
[20:57] <Upu> pink LEDS :)
[20:58] <Upu> sparkfun box for the people in #sparkfun :)
[20:58] <daveake_> I knew my payload was missing something
[20:59] <Upu> the power LED won't be lit for flights
[20:59] <Upu> waste of power
[20:59] <Lunar_Lander> yea
[21:03] <cuddykid> Lunar_Lander: in response to your question a few days ago :P about the external temp sensor failing: I believe that I destroyed it in someway when soldering it. Seem's to be the most plausible explanation. Checked code and there didn't seem to be any bugs
[21:03] <cuddykid> swapped the old sensors out for new ones and running with new code for the next flight :D
[21:04] <Lunar_Lander> :) sounds good
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[21:07] <Laurenceb_> http://www.sequoia.co.uk/components/category.php?d=2&c=23&f=&p=&fmt=grid
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[21:12] <Lunar_Lander> hello NigeyS
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[21:54] Nick change: SAIDias -> W0OTM
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[22:06] <Laurenceb_> http://www.sequoia.co.uk/components/product.php?d=2&c=23&f=157&p=1292&fmt=grid
[22:07] Action: SpeedEvil keeps meaning to make a guarded hot-box.
[22:08] <SpeedEvil> hmm
[22:08] <SpeedEvil> It senses the delta between the stirpes?
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[22:38] <Laurenceb_> i think it senses the delta through the film
[22:38] <Laurenceb_> using loads of thin film thermocouples in series
[22:39] <Laurenceb_> i think ill right them tomorrow and see if anyone as sequoia can provide enlightenment
[22:50] <navrac_> anyone used an arduino pro mini with softwareserial?
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[23:02] <Laurenceb_> http://www.newportus.com/ppt/HFS.html
[23:03] <Laurenceb_> arggg the units
[23:03] <Laurenceb_> µV/Btu/Ft2-Hr
[23:03] <Laurenceb_> what the helll
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[23:09] <Laurenceb_> those sequoia sensors are from here: http://www.captecentreprise.com/prod01.htm
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[00:00] --- Tue Jan 24 2012