[00:06] Wild-Wing (~chatzilla@c-24-34-60-55.hsd1.ma.comcast.net) joined #highaltitude. [00:06] Wild-Wing (~chatzilla@c-24-34-60-55.hsd1.ma.comcast.net) left irc: Client Quit [00:08] Wild-Wing (~chatzilla@c-24-34-60-55.hsd1.ma.comcast.net) joined #highaltitude. [00:08] Wild-Wing (~chatzilla@c-24-34-60-55.hsd1.ma.comcast.net) left irc: Client Quit [00:08] SpeedEvil (~user@tor/regular/SpeedEvil) left irc: Quit: Leaving. [00:08] SpeedEvil (1000@tor/regular/SpeedEvil) joined #highaltitude. [00:09] Wild-Wing (~chatzilla@c-24-34-60-55.hsd1.ma.comcast.net) joined #highaltitude. [00:11] Wild-Wing (~chatzilla@c-24-34-60-55.hsd1.ma.comcast.net) left irc: Remote host closed the connection [00:55] juxta|console (~juxta@ppp203-122-193-94.static.internode.on.net) left irc: Quit: Leaving. [00:59] juxta (Bogaurd@ppp203-122-193-94.static.internode.on.net) joined #highaltitude. [01:04] sup juxta [01:04] sup Darkside [01:04] how's the report going? [01:07] getting there [01:07] just realised i'm going to need to go make some more measurements of a few things [01:32] shenki: there? [01:40] jiffe98 (~jiffe98@209.159.247.189) joined #highaltitude. [01:42] jasonb (~jasonb@12.201.129.162) left irc: Ping timeout: 265 seconds [01:44] Darkside: yes [01:44] look to your left [01:45] eh [01:46] heh [01:46] TURN LEFT [01:52] Gnea (~gnea@unaffiliated/gnea) left irc: Ping timeout: 276 seconds [02:16] juxta: projecthorus.org is loading very slowly [02:17] and/or not at all [02:18] bradluyster (~bradluyst@69.64.6.67) left irc: Quit: Leaving [02:26] Jasperw (~jasperw@93.89.81.29) left irc: Quit: Leaving. [02:27] Gnea (~gnea@unaffiliated/gnea) joined #highaltitude. [02:44] shenki: ima boppin [02:45] Darkside: lunch time? [02:46] im heading over to DJs [02:51] hmmm [02:51] getting that way [02:51] i want to finish this section first [02:51] i'm almost done with the amplifier section [03:39] Simon-MPFH (~simon@phantom.mpfh.co.uk) left irc: Quit: Leaving [04:02] natrium42 (~natrium@CPE000625d867e2-CM0014045885be.cpe.net.cable.rogers.com) joined #highaltitude. [04:07] Gnea (~gnea@unaffiliated/gnea) left irc: Ping timeout: 272 seconds [04:09] Gnea (~gnea@unaffiliated/gnea) joined #highaltitude. [04:10] slothearn (~euclid@pool-98-111-116-30.hrbgpa.fios.verizon.net) joined #highaltitude. [04:54] Gnea (~gnea@unaffiliated/gnea) left irc: Ping timeout: 252 seconds [05:28] Upu (~Upu@ubn.upuaut.net) joined #highaltitude. [06:16] Simon-MPFH (~simon@phantom.mpfh.co.uk) joined #highaltitude. [06:20] SpikeUK (~chatzilla@2001:470:92f1:0:297f:f563:80c1:f37a) joined #highaltitude. [06:24] natrium42 (~natrium@CPE000625d867e2-CM0014045885be.cpe.net.cable.rogers.com) left irc: Quit: Leaving [06:34] m1x10 (m1x10@ppp089210172094.dsl.hol.gr) joined #highaltitude. [06:34] Hi all [06:36] Backup recovery module - still up and running for 12:30 hrs with simple alkalines :) [06:38] they might not work so well when they get cold [06:38] kd0mto (~dago@ics129-198.icsincorporated.com) joined #highaltitude. [06:38] Ill be using lithums then. [06:39] yup [06:39] energizer lithiums work really well [06:39] I just dont buy lithiums for the tests. Are expensive. So use cheap alk [06:40] be careful with the lithiums tho, they have a higher open circuit voltage than alkalines [06:40] its possible to blow things up [06:43] I wonder what capcacity and what voltage have the coin cells [07:12] kd0mto (~dago@ics129-198.icsincorporated.com) left irc: Quit: bed time, long days ahead of me. [07:22] kd0mto (~dago@ics129-198.icsincorporated.com) joined #highaltitude. 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[08:23] jasonb (~jasonb@adsl-66-124-73-250.dsl.sntc01.pacbell.net) joined #highaltitude. [08:26] jasonb (~jasonb@adsl-66-124-73-250.dsl.sntc01.pacbell.net) left irc: Remote host closed the connection [08:29] GW8RAK_ (~chatzilla@host86-154-166-38.range86-154.btcentralplus.com) joined #highaltitude. [08:29] jasonb (~jasonb@adsl-66-124-73-250.dsl.sntc01.pacbell.net) joined #highaltitude. [08:32] GW8RAK (~chatzilla@host86-154-166-38.range86-154.btcentralplus.com) left irc: Ping timeout: 245 seconds [08:32] Nick change: GW8RAK_ -> GW8RAK [08:38] m1x10 (m1x10@ppp089210172094.dsl.hol.gr) left irc: Quit: If you run, you only gonna die tired [08:57] WillD_ (c2498332@gateway/web/freenode/ip.194.73.131.50) joined #highaltitude. [09:12] jiffe99 (~jiffe98@209.159.247.189) joined #highaltitude. [09:16] jiffe98 (~jiffe98@209.159.247.189) left irc: Ping timeout: 272 seconds [09:24] GW8RAK (~chatzilla@host86-154-166-38.range86-154.btcentralplus.com) left irc: Ping timeout: 245 seconds [09:24] GW8RAK (~chatzilla@host86-154-166-38.range86-154.btcentralplus.com) joined #highaltitude. [09:34] m1x10 (m1x10@ppp089210172094.dsl.hol.gr) joined #highaltitude. [09:35] Laurenceb_ (~laurence@vlsi1.eee.nottingham.ac.uk) joined #highaltitude. [09:37] m1x10 (m1x10@ppp089210172094.dsl.hol.gr) left irc: Client Quit [09:37] m1x10 (m1x10@ppp089210172094.dsl.hol.gr) joined #highaltitude. [09:38] GW8RAK (~chatzilla@host86-154-166-38.range86-154.btcentralplus.com) left irc: Ping timeout: 245 seconds [09:38] GW8RAK (~chatzilla@host86-154-166-38.range86-154.btcentralplus.com) joined #highaltitude. [09:57] juxta: ping [10:01] Darkside [10:01] mm [10:01] have you got your nick registered? [10:01] yes [10:01] I just found memoserv [10:01] I will try to send a msg to u [10:01] ok? [10:01] uhmm ok [10:02] let me know [10:02] got it? [10:07] m1x10 (m1x10@ppp089210172094.dsl.hol.gr) left irc: Quit: If you run you only gonna die tired [10:10] m1x10 (m1x10@ppp089210172094.dsl.hol.gr) joined #highaltitude. [10:16] ping Darkside [10:17] oh [10:17] hmm [10:17] haha cool [10:17] yeo [10:17] yep [10:17] just had to look at my server tab to see the message [10:19] ok thats nice [10:19] feature [10:19] heh [10:20] GW8RAK (~chatzilla@host86-154-166-38.range86-154.btcentralplus.com) left irc: Ping timeout: 245 seconds [10:20] GW8RAK (~chatzilla@host86-154-166-38.range86-154.btcentralplus.com) joined #highaltitude. [10:24] lol [10:25] it also gives a report that you've red my msg [10:25] [13:17] -MemoServ- Darkside has read your memo, which was sent at Oct 21 10:02:26 2010 [10:25] lol [10:30] Jorgie (74fa13d1@gateway/web/freenode/ip.116.250.19.209) joined #highaltitude. [10:45] Jorgie (74fa13d1@gateway/web/freenode/ip.116.250.19.209) left irc: Ping timeout: 265 seconds [10:51] GW8RAK (~chatzilla@host86-154-166-38.range86-154.btcentralplus.com) left irc: Ping timeout: 252 seconds [10:51] GW8RAK (~chatzilla@host86-154-166-38.range86-154.btcentralplus.com) joined #highaltitude. [10:54] SpeedEvil: this looks like the easiest way to do data over usb [10:57] ? [10:59] erm http://www.pjrc.com/teensy/rawhid.html [11:00] thought id pasted the link lol [11:02] up to 64KBytes/sec througput [11:10] or 30khz or so bandwidth [11:12] http://www.pjrc.com/teensy/usb_serial.html [11:12] thats more like it - 1.1Mbyte/sec [11:13] What's the max jitter-free rate with no fifo though [11:15] but - yes - looks nteresting [11:16] Simon-MPFH (~simon@phantom.mpfh.co.uk) left irc: Quit: Leaving [11:20] Umm - is the 'teensy USB board' art $18 all I need for that? [11:20] Looks very interesting [11:25] yes [11:25] it has bootloader [11:25] looks like some of the usb function block - need to avoid that happening [11:35] juxta|console (~juxta@ppp203-122-193-94.static.internode.on.net) joined #highaltitude. [11:44] hey juxta|console [11:44] do you have the kml for horus 8? [11:50] hey Darkside [11:50] haven't gotten around to it yet [11:50] i do have a big dumpof data I can give you [11:50] but it'squite noisy and will need some filtering [11:51] hrmm [11:51] i just wanted something i could put on a map easily :P [11:51] hold on [11:52] pretty pictures for the report, you know [11:52] i maye have a rough one [11:52] may* [11:52] i have a screengrab from spacenear.us [11:52] but i'd like something better [12:14] GW8RAK (~chatzilla@host86-154-166-38.range86-154.btcentralplus.com) left irc: Read error: Connection reset by peer [12:30] DarkCow (~DarkCow@5ad9ea05.bb.sky.com) left irc: Ping timeout: 240 seconds [13:07] oh wow http://www.kjmagnetics.com/proddetail.asp?prod=AY0X030-C&cat=168 [13:08] 1.1T circular halbach array [13:08] SpeedEvil: ^ perfect for a mini MRI [13:09] neat [13:10] That's over a tiny volume though [13:14] well cubic inch [13:14] http://www.kjmagnetics.com/blog/index.php/2010/06/30/hard-drive-destruction/#more-410 [13:14] square inch by 1/8th" it looked like [13:27] https://www.llnl.gov/str/Post.html [13:28] Action: SpeedEvil sighs at busses. [13:28] Came 2 min early, and I missed it. [13:29] yeah [13:29] I've been going on about that forever. [13:30] http://www.askmar.com/Inductrack/2006-10-27%20ECCO%20Conceptual%20Design.pdf [13:30] http://www.askmar.com/Inductrack/inductrack.html [13:31] I really want http://www.skytran.net/phpsite/home/Home%20Intro.php implementing the above [13:31] a packet-switched hyper-light point-point rail system capable of being strung on light-poles. [13:34] crazy [13:35] I also love the concept of horse-drawn passive maglev. [13:35] Just because. [13:35] lmao [13:48] Action: SpeedEvil leaves for bus again. [14:35] jasonb (~jasonb@adsl-66-124-73-250.dsl.sntc01.pacbell.net) left irc: Ping timeout: 240 seconds [14:42] Hi, I just found pololu.com online store. Are they good? [14:46] davejay (c744140f@gateway/web/freenode/ip.199.68.20.15) joined #highaltitude. [14:55] WillD_ (c2498332@gateway/web/freenode/ip.194.73.131.50) left irc: Quit: Page closed [15:00] doughecka2 (~Tad@69.64.6.70) joined #highaltitude. [15:00] doughecka (~Tad@74-143-13-162.static.insightbb.com) left irc: Read error: Connection reset by peer [15:00] doughecka (~Tad@74-143-13-162.static.insightbb.com) joined #highaltitude. [15:05] doughecka2 (~Tad@69.64.6.70) left irc: Ping timeout: 252 seconds [15:06] davejay (c744140f@gateway/web/freenode/ip.199.68.20.15) left irc: Quit: Page closed [15:21] Simon-MPFH (~simon@phantom.mpfh.co.uk) joined #highaltitude. [15:31] juxta|console (~juxta@ppp203-122-193-94.static.internode.on.net) left irc: Quit: Leaving. [15:38] juxta (Bogaurd@ppp203-122-193-94.static.internode.on.net) left irc: Ping timeout: 265 seconds [15:48] jan_bangna (~jandetlef@ppp-124-121-230-40.revip2.asianet.co.th) joined #highaltitude. [15:49] Laurenceb_ (~laurence@vlsi1.eee.nottingham.ac.uk) left irc: Ping timeout: 240 seconds [15:54] jasonb (~jasonb@12.201.129.162) joined #highaltitude. [16:22] StrayVoltage (Tvilling@unaffiliated/twiner) left irc: Ping timeout: 240 seconds [16:36] m1x10 (m1x10@ppp089210172094.dsl.hol.gr) left irc: Ping timeout: 240 seconds [16:40] m1x10 (m1x10@ppp089210163176.dsl.hol.gr) joined #highaltitude. [16:40] stilldavid (~dave@68-64-214-18.static.forethought.net) left irc: Remote host closed the connection [16:43] stilldavid (~dave@68-64-214-18.static.forethought.net) joined #highaltitude. [16:45] fsphil (~phil@2001:8b0:34:1:21f:c6ff:fe44:b25b) joined #highaltitude. [16:47] SpikeUK (~chatzilla@2001:470:92f1:0:297f:f563:80c1:f37a) left irc: Ping timeout: 276 seconds [17:13] LazyLeopard (~irc-clien@chocky.demon.co.uk) joined #highaltitude. [17:20] Gnea (~gnea@unaffiliated/gnea) joined #highaltitude. [17:28] jcoxon (~jcoxon@cpc1-lanc4-0-0-cust720.3-3.cable.virginmedia.com) joined #highaltitude. [17:29] jan_bangna (~jandetlef@ppp-124-121-230-40.revip2.asianet.co.th) left irc: Quit: jan_bangna [17:35] jcoxon (~jcoxon@cpc1-lanc4-0-0-cust720.3-3.cable.virginmedia.com) left irc: Ping timeout: 240 seconds [17:35] jan_bangna (~jandetlef@ppp-124-121-230-40.revip2.asianet.co.th) joined #highaltitude. [17:38] DarkCow (~DarkCow@5ad65fe4.bb.sky.com) joined #highaltitude. [17:41] jcoxon (~jcoxon@cpc1-lanc4-0-0-cust720.3-3.cable.virginmedia.com) joined #highaltitude. [17:44] anyone up for a floater launch next week? [17:46] jcoxon: yo [17:46] funny you happened to be online on the one occassion that I am too [17:46] hehe [17:47] hows tricks [17:48] Simon-MPFH (~simon@phantom.mpfh.co.uk) left irc: Quit: Leaving [17:48] Gnea (~gnea@unaffiliated/gnea) left irc: Ping timeout: 276 seconds [17:48] very good thanks [17:48] happy personal life :) [17:48] oh really [17:50] oh sounds like fun, I can certainly try tracking [17:50] i don't really have that much time... [17:50] MrCraig (~Craig@host86-166-79-248.range86-166.btcentralplus.com) joined #highaltitude. [17:51] but could do wednesday evening/night [17:52] any particular target? or just see what happens? [17:52] well to test the flight computer [18:02] StrayVoltage (Tvilling@c4383BF51.static.bluecom.no) joined #highaltitude. [18:02] StrayVoltage (Tvilling@c4383BF51.static.bluecom.no) left irc: Changing host [18:02] StrayVoltage (Tvilling@unaffiliated/twiner) joined #highaltitude. [18:06] Twin2k (Tvilling@c4383BF51.static.bluecom.no) joined #highaltitude. [18:07] kd0mto (~dago@m70-m78-m79-1.nat.iastate.edu) joined #highaltitude. [18:07] StrayVoltage (Tvilling@unaffiliated/twiner) left irc: Ping timeout: 264 seconds [18:08] natrium42 (~akarpenk@scspc243.cs.uwaterloo.ca) joined #highaltitude. [18:10] if it doesn't work out i'll postpone to a weekend soon [18:12] Guest5898753 (~smealum@85-171-205-215.rev.numericable.fr) joined #highaltitude. [18:13] hello guest from france [18:13] hehe, evening natrium42 [18:14] hi jcoxon [18:15] r3dw0rm (ada02df1@gateway/web/freenode/ip.173.160.45.241) joined #highaltitude. [18:15] jcoxon: Got a day in mind? [18:16] wednesday evening perhaps [18:17] fsphil: sparkfun got my jpeg cam !!! [18:17] http://www.sparkfun.com/commerce/product_info.php?products_id=10061 [18:18] ooh nice, out of stock though :) [18:18] yes, got raped in a day :) [18:18] its the RS232 type though [18:18] Laurenceb (~laurence@host86-142-83-50.range86-142.btcentralplus.com) joined #highaltitude. [18:18] hi [18:18] yo [18:20] LazyLeopard, that said the forcast isn't great though its ridiculously far away [18:23] I should be able to manage tracking on Wednesday. [18:24] MrCraig (~Craig@host86-166-79-248.range86-166.btcentralplus.com) left irc: Quit: Leaving [18:24] epicetus (pattm@static-71-174-73-53.bstnma.fios.verizon.net) left #highaltitude. [18:33] http://antwrp.gsfc.nasa.gov/apod/ap101018.html [18:33] that is enough to heat earth for a couple of decades :) [18:34] natrium42 (~akarpenk@scspc243.cs.uwaterloo.ca) left irc: Quit: Leaving [18:37] jan_bangna (~jandetlef@ppp-124-121-230-40.revip2.asianet.co.th) left irc: Quit: jan_bangna [18:54] lol [18:54] http://antwrp.gsfc.nasa.gov/apod/ap060522.html [19:07] Gnea (~gnea@unaffiliated/gnea) joined #highaltitude. [19:07] natrium42 (~natrium@CPE000625d867e2-CM0014045885be.cpe.net.cable.rogers.com) joined #highaltitude. [19:08] jcoxon (~jcoxon@cpc1-lanc4-0-0-cust720.3-3.cable.virginmedia.com) left irc: Quit: This computer has gone to sleep [19:10] WillD_ (519d8977@gateway/web/freenode/ip.81.157.137.119) joined #highaltitude. [19:14] Gnea (~gnea@unaffiliated/gnea) left irc: Ping timeout: 240 seconds [19:24] WillD_ (519d8977@gateway/web/freenode/ip.81.157.137.119) left irc: Quit: Page closed [19:25] SpeedEvil: i was looking at usb on atmega - its not exactly a magic bullet [19:26] looks like you can send 64byte packets with the DPRAM, but theres a USBtick ISR that gets called every ms [19:26] thats needed to setup the packet [19:26] its rather annoying as i require jittle free register sampling over spi [19:26] *jitter [19:27] yeah. [19:27] It looks interesting for some things I was thinking of [19:27] i guess i could use an interrupt for the sampling [19:27] I need a several channel logger for a solar probe [19:27] and let it nest inside the usb isr [19:28] but theres still opportunity for jitter as interrupts can be serviced during entery to another ISR [19:28] or the stack gets messed up [19:28] Unless you can code it in registers [19:28] and dedicate some [19:29] yeah - lots of tricky asm [19:30] gues i could setup the sampling on timer=x, and inside the sampling isr wait until timer = x+2 or something [19:30] WillD_ (~will@host81-157-137-119.range81-157.btcentralplus.com) joined #highaltitude. [19:30] removing the opportunity for any jitter [19:31] or yeah asm the usb and sampling isrs [19:31] so registers dont conflict [19:32] How long does the USB interrupt take, and can it itself take the jutter though? [19:32] aiui it can take a bit of jitter, i forget how much [19:32] jerry507_mac (~jerry507@jsmac.student.iastate.edu) joined #highaltitude. [19:33] its a few us to run, the sampling takes similar time [19:33] Action: Laurenceb wonders if theres a way to instruct gcc to avoid register conflicts between two blocks of code [19:33] I'm pondering more solar research. Several panels in a fixed orientation, to log irradiance over a year [19:33] jcoxon (~jcoxon@cpc1-lanc4-0-0-cust720.3-3.cable.virginmedia.com) joined #highaltitude. [19:33] Prior to pondering actual installation [19:34] MrCraig (~Craig@host86-166-79-248.range86-166.btcentralplus.com) joined #highaltitude. [19:34] or just use the online solar irradiation untility thingy [19:35] Yes. [19:35] i suspect 64Kbytes/sec should be possible, but i doubt anything more without jitter [19:35] There are a couple of wrinkles I'm wondering about. [19:35] thats enough for 30khz bandwidth which is pretty respectable i guess [19:35] order of mag more than ham kit [19:35] For example, how much can I gain with simple mirrors. [19:35] Or white reflectors. [19:36] yeah - iirc the solar irradiace calculator has diffuse light and clouds etc etc [19:36] you could try emailing the developers as well [19:37] True. [19:37] OTOH - test panels give some limited actual RL experience. [19:37] it even uses a DEM for shading FFS [19:37] pretty impressive [19:37] yeah - I saw that. [19:37] I assume it's running off SRTM [19:37] it might just be some EU funded DEM project [19:38] but AIUI theres no such data in the public domain [19:38] For example - how do encapsulated panels vs unencapsulated ones work at various concentrations. [19:38] STRM [19:38] http://en.wikipedia.org/wiki/SRTM [19:38] 90m outside US, 30m inside [19:38] apart from about a steradian at each pole [19:40] Action: Laurenceb is writing a properly documented cc1020 library [19:40] not fun [19:40] The world will thank you for it! [19:40] heh [19:40] You will get girls and money showered on you! [19:40] Or maybe not. [19:40] But meh. [19:41] *sigh* people have still not adopted my custard creame and jammie dodgers barter system. [19:42] Gnea (~gnea@unaffiliated/gnea) joined #highaltitude. [19:42] Sounds like a good idea to me. [19:42] :-) [19:56] MrCraig (~Craig@host86-166-79-248.range86-166.btcentralplus.com) left irc: Ping timeout: 245 seconds [19:57] MrCraig (~Craig@host86-161-119-39.range86-161.btcentralplus.com) joined #highaltitude. 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[20:40] Guest5898753 (~smealum@85-171-205-215.rev.numericable.fr) left irc: [20:42] jerry507_mac (~jerry507@jsmac.student.iastate.edu) left irc: Ping timeout: 264 seconds [20:44] kd0mto (~dago@m70-m78-m79-1.nat.iastate.edu) left irc: Quit: Time to regroup. [20:49] jerry507_mac (~jerry507@jsmac.student.iastate.edu) joined #highaltitude. [21:04] MrCraig (~Craig@host86-161-119-39.range86-161.btcentralplus.com) left irc: Ping timeout: 240 seconds [21:10] m1x10 (m1x10@ppp089210163176.dsl.hol.gr) left irc: Quit: If you run you only gonna die tired [21:18] Jasperw (~jasperw@93.89.81.29) joined #highaltitude. [21:49] hehe my temp sensor/ resistance heater is maintaining my ntx2 at 25 degs yet outside my window [21:53] :) [21:53] Congrats. [21:53] now, the freezer! [21:54] pah had to retune [21:54] damn [21:55] but haven't actually implemented PID yet [21:56] PID? [21:56] also need to add another temp sensor to compare to environment [21:56] PID controller [21:56] or pelvic inflamatory disease - your choice really [21:56] MrCraig (~MrCraig@host86-173-15-25.range86-173.btcentralplus.com) joined #highaltitude. [21:57] ;\ [21:57] MrCraig (MrCraig@host86-173-15-25.range86-173.btcentralplus.com) left #highaltitude. [21:59] jcoxon: is it a full PID controller? [21:59] s/is it/will it be/ [22:00] i was going to use the PID lib for arduino [22:00] didn't know there was one [22:00] unsurprising really I guess [22:00] http://www.arduino.cc/playground/Code/PIDLibrary [22:01] squirrel2 (~chatzilla@constantine.chu.cam.ac.uk) joined #highaltitude. [22:01] nice [22:01] looks quite neat [22:02] "Unless you know what it's for, don't use D (D_Param=0)" [22:02] hehe [22:02] yeah not too sure about tuning it - still reading about that [22:03] http://www.bbc.co.uk/podcasts/series/maths [22:03] interesting [22:03] A brief history of mathematics. [22:03] start with Ki=Di=0, the adjust Pi until you get near what you want but with steady state error [22:03] then increase Pi until you eliminate that error in a reasonable time [22:04] you don't really need the differential term unless you really have to make sure it is critically damped, as it were [22:04] hence the instruction thing saying don't worry too much about Di [22:04] eek sounds complicated [22:05] certainly a job for another day [22:05] you're just trying to keep something at a constant temp? [22:05] yup [22:05] the ntx2 crystal [22:05] certainly possible with just the P term [22:05] so start with that (set I and D to 0) [22:08] and make sure it doesnt overshoot [22:09] you'll probably find that it gets closer and closer to the target temp but never quite reaches it (steady state error), which is what the integral term solves [22:09] so you say "i want 25C" from a start temp of 15C, and it gets to about 23-24C and stays there [22:09] I-term will stop that happening :) [22:09] thats no problem really [22:10] its not like we are aiming for a temp - more stability [22:10] also you won't have step changes in temp [22:10] so I'd bet that just a P-controller will do you fine :) [22:12] :-) [22:13] in someways just reducing the drift rate so that the afc can keep up will be an good thing [22:13] so set I_param and D_param to 0 and fiddle with P_param until you get a useful response from the control system [22:16] jonsowman: applying knowledge acquired in a lab? I'm pretty sure that's against the rules [22:21] thanks for the help jonsowman [22:21] night all [22:21] jcoxon (~jcoxon@cpc1-lanc4-0-0-cust720.3-3.cable.virginmedia.com) left irc: Quit: Leaving [22:25] SpeedEvil (1000@tor/regular/SpeedEvil) left irc: Ping timeout: 252 seconds [22:30] squirrel2 (~chatzilla@constantine.chu.cam.ac.uk) left irc: Quit: ChatZilla 0.9.86-rdmsoft [XULRunner 1.9.0.17/2009122204] [22:35] http://pastebin.com/AXeaykP5 [22:35] Randomskk: heh [22:35] ^everything cc1020 nicely documented now [22:35] Laurenceb: nice, good stuff [22:35] SpeedEvil (~user@tor/regular/SpeedEvil) joined #highaltitude. [22:36] most nicked from other peoples projects, but ive reorganised it and made it use avr registers/delay functions [22:36] like here http://www.sics.se/~adam/contiki/docs-uipv6/a01899.html [22:38] also http://svn.jonathanwagner.net/cape/CAPE1/Communications/Software/Code/trunk/libs/CC1020/ [22:39] but it appears to follow all the Ti guidelines to the letter [22:39] :) [22:39] appears to = its so disorganised with little clauses in app notes etc i cant follow it all [22:40] theres some example code from Ti for avr but its a mess [22:40] the cape project is pretty cool [22:41] Ax.25 with a cc1020, using a very small frequency shift [22:41] oh yeah and its from a picosat XD [22:48] zeusbot joined #highaltitude. [22:48] cya all [22:49] griffonbot (~griffonbo@nessie.habhub.org) joined #highaltitude. 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