highaltitude.log.20180217

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[01:55] <SpacenearUS> New vehicle on the map: 03M2513116 - 12https://tracker.habhub.org/#!qm=All&q=M2513116
[02:00] <Darkside> whoops
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[03:18] <Ian_> Is that indicative of a launch failure?
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[04:11] <Darkside> Ian_: no, its indicitive of me forgetting i had an automatic rx station running when i turned on a recovered radiosonde
[04:12] <Ian_> Ah, it explains the oops. Thought it was a Met Office faux pas :)
[04:12] <Ian_> Many thanks
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[04:30] <trickv> I'm trying to get a URL on tracker.habhub.org for my flight that was a few days ago...
[04:31] <trickv> I can get the track for Dave's tracker BUZZ at this URL: https://tracker.habhub.org/#!mt=roadmap&mz=10&qm=All&f=BUZZ&q=BUZZ
[04:31] <trickv> But when I change the URL to my tracker, SAM, I get "no vehicles": https://tracker.habhub.org/#!mt=roadmap&mz=10&qm=All&f=SAM&q=SAM
[04:31] <trickv> Am I missing something obvious?
[04:41] <Darkside> i suspect 'All' is not actually 'All'
[04:41] <Darkside> if you made a flight document you should be able to export the telemetry data using http://habitat.habhub.org/ept/
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[06:01] <SpacenearUS> New position from 03U3S22 after 0318 hours silence - 12https://tracker.habhub.org/#!qm=All&q=U3S22
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[06:35] <SpacenearUS> New vehicle on the map: 03DB5SB-11 - 12https://tracker.habhub.org/#!qm=All&q=DB5SB-11
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[09:35] <daveake> trickv: I think you left some AA cells here ... 2 alkaline and a pack of Lithiums
[09:43] <PE2BZ> Lora to space and back https://store.outernet.is/blogs/the-official-outernet-blog/world-record
[09:44] <russss> interesting
[09:44] <SpacenearUS> New position from 03FOOL1 after 0314 hours silence - 12https://tracker.habhub.org/#!qm=All&q=FOOL1
[09:57] <bertrik> cool stuff :)
[10:02] <PE2BZ> Somebody missing a solar powered radiosonde ?
[10:02] <PE2BZ> http://wkow.images.worldnow.com/images/16099926_G.jpg?auto=webp&disable=upscale&width=800
[10:02] <PE2BZ> http://www.wkow.com/story/37520679/2018/02/Friday/deputies-discover-weather-balloon-that-veered-off-course-in-waupaca-county
[10:03] <russss> that's sizeable
[10:04] <PE2BZ> off course it went off course
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[11:18] <SpacenearUS> New vehicle on the map: 03M4543361 - 12https://tracker.habhub.org/#!qm=All&q=M4543361
[11:20] <SpacenearUS> New vehicle on the map: 03M4413141 - 12https://tracker.habhub.org/#!qm=All&q=M4413141
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[12:18] <SpacenearUS> New vehicle on the map: 03HB9HFJ-11 - 12https://tracker.habhub.org/#!qm=All&q=HB9HFJ-11
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[13:54] <SpacenearUS> New position from 03HIRF-6 after 0313 hours silence - 12https://tracker.habhub.org/#!qm=All&q=HIRF-6
[14:06] <SpacenearUS> New position from 03HIRFW-6 after 0314 hours silence - 12https://tracker.habhub.org/#!qm=All&q=HIRFW-6
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[16:17] <SpacenearUS> New vehicle on the map: 03KA7NSR-8 - 12https://tracker.habhub.org/#!qm=All&q=KA7NSR-8
[16:29] Action: SpeedEvil idly wonders on scaling laws for high altitude ornithopters.
[16:31] <SpacenearUS> New vehicle on the map: 03KA7NSR-9 - 12https://tracker.habhub.org/#!qm=All&q=KA7NSR-9
[16:32] <SpeedEvil> https://en.wikipedia.org/wiki/Entomopter - hmm
[16:48] <SpeedEvil> http://angel-strike.com/entomopter/NIAC_Final_Report_10-31-02.pdf holy crap.
[16:52] <SpeedEvil> https://i.imgur.com/YHitsKQ.jpg
[16:56] <Ian_> :) Laurenceb will experiment/enthuse with it and daveake will make it work to fly back to the launch area . . .
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[18:06] <Kryczek> Upu: Hi! Have you by any chance heard of complete system freezes on RPi3 with the GPS Expansion Board and when connecting to WiFi? The console print outs were scrolling too fast on HDMI so I bought a USB to GPIO serial adapter, which required removing the GPS Expansion Board, and now I can't get the RPi3 to crash heh :)
[18:21] Nick change: _Matthias -> Matthias
[18:35] <SpacenearUS> New vehicle on the map: 03HF3M - 12https://tracker.habhub.org/#!qm=All&q=HF3M
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[21:43] <SpeedEvil> Kryczek: first general question would be 'what is your power supply', and are there any indications of issues ith it
[21:49] <Kryczek> SpeedEvil: thank you :) I tried with all my strongest power supplies (ranging from 2A down to 1.2A) and a USB powerbank capable of 1.5A per port, to no effect
[21:52] <Kryczek> SpeedEvil: since I wrote that message earlier, I put the GPS Expansion Board back on to verify that it (or some software related to it) was the culprit, but I cannot get it to crash with that either
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[21:53] <Kryczek> So I have given up for today as I am seriously sleep deprived (which might be the reason) and I hope maybe the RPi3 was just overheating underneath the GPS board with the case closed
[21:58] <SpeedEvil> Good luck.
[22:04] <Kryczek> SpeedEvil: thank you :)
[22:06] <Ian_> Without anyextra boards, I have had a particular RPi3 lock up on me, but that was while running the IRC channel, gmail and Watching lots of YouTubes videos.
[22:09] <Ian_> characterised by the clock on the gui becoming wildly out of real time and a symptom of this is the large chip behind the micro usb + HDMI connectors was as hot as hell. Symptom, not cause.
[22:11] <mfa298> the Pi3 shouldn't crash if it gets hot, it will slow down the clock speed to it can stay under 80C
[22:11] <SpeedEvil> https://www.ebay.co.uk/itm/Infrared-Induction-Flying-Flash-Disco-Colorful-LED-Ball-Helicopter-Kids-Toy-SK/282664224847 is more fun than it should be.
[22:11] <Ian_> When in the stalled(?) state I wouldn't want to keep my finger on it for more than a few seconds.
[22:12] <mfa298> although I'd go with SpeedEvil's first question - check the PSU, 1.5A might be too low for a Pi3 with stuff plugged in. usually a good 2.5A supply is suggested
[22:12] <mfa298> well 80C is quite hot for fingers but just ok for the Pi3 SoC
[22:17] <SpeedEvil> I think the above could get to 2km, with a mildly upgraded battery, and removing the case. (don't do that)
[22:24] <Kryczek> mfa298: I measured the current draw with all my scripts running and the highest it spiked was 1100mA :)
[22:25] <Kryczek> Ian_: very interesting, thanks; I do suspect some kind of race condition / runaway loop between the various parts of network management so that might explain it
[22:28] <Ian_> Often, coincidentally, activity on the IRC channel can cause my YouTube watching to give a little glitch. Not all RPi3 are the same, but the size of the SD cards isn't the same either.
[22:30] <Kryczek> SpeedEvil: haha yeah I think bigclivedotcom did a teardown of it
[22:30] <Kryczek> looks like a fun toy indeed
[22:30] <SpeedEvil> yeah
[22:31] <mfa298> Kryczek: it might be worth checking to see if the Pi has detected undervolt conditions.
[22:32] <Kryczek> mfa298: only if you already know it off the top of your head: how do I do that? :)
[22:32] <mfa298> sudo vcgencmd get_throttled
[22:33] <mfa298> should be 0 normally, I forget all the bit meanings if it's not 0
[22:34] <SpacenearUS> New vehicle on the map: 03PL_01 - 12https://tracker.habhub.org/#!qm=All&q=PL_01
[22:36] <mfa298> also the red power led should be solid, if that blinks that;s a sign of problems
[22:38] <mfa298> the bits are listed in https://retropie.org.uk/forum/topic/2295/runcommand-warning-if-voltage-temperature-throttling or https://www.raspberrypi.org/forums/viewtopic.php?f=63&t=147781&start=50#p972790
[22:42] <Kryczek> mfa298: it's just 0x0 :| but I guess that status gets cleared on boot?
[22:43] <mfa298> it'll certainly clear on a power cylce, not sure about on reboot (if you leave it powered)
[22:43] <Kryczek> my problem is (was?) that it would boot fine, run fine, and then as soon as I turn my smartphone WiFi hotspot on for example, I would see on my phone that a device is associating, and the RPi would lock up
[22:44] <Kryczek> as in completely lock up: I configured the power LED to act as a heartbeat, and even that would freeze
[22:45] <mfa298> that doesn't sounds right, I don't think you can configure the power led (red) to do anythign (at least on the Pi3) - you can do stuff with the act led (green)
[22:46] <Kryczek> echo netfilter-wlan0 > /sys/class/leds/led0/trigger
[22:46] <Kryczek> echo heartbeat > /sys/class/leds/led1/trigger
[22:47] <Kryczek> it was already freezing before I configured that so this shouldn't freeze your RPi3 if you want to try it :)
[22:48] <mfa298> I had thought on the pi3 the power detection stuff was connected to a gpio you couldn't control (unless that's something they've changed in later firmware)
[22:51] <Kryczek> ah maybe
[22:51] <Kryczek> I've bought previous RPi's as soon as they came out until the Pi3 which I eventually bought just a couple of weeks ago
[22:52] <Kryczek> I was hoping the freezes might be fixed with a firmware update so I noticed that originally it had one from October 2017, and now I have the very latest but both were freezing
[23:17] <SpacenearUS> New vehicle on the map: 03N1133859 - 12https://tracker.habhub.org/#!qm=All&q=N1133859
[23:19] <SpacenearUS> New vehicle on the map: 03M4543015 - 12https://tracker.habhub.org/#!qm=All&q=M4543015
[23:26] <SpacenearUS> New vehicle on the map: 03M4343558 - 12https://tracker.habhub.org/#!qm=All&q=M4343558
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[23:28] <SpacenearUS> New vehicle on the map: 03N1950242 - 12https://tracker.habhub.org/#!qm=All&q=N1950242
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[23:40] <SpacenearUS> New vehicle on the map: 03N1630401 - 12https://tracker.habhub.org/#!qm=All&q=N1630401
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[23:53] <SpacenearUS> New position from 03BSS13 after 035 days silence - 12https://tracker.habhub.org/#!qm=All&q=BSS13
[23:54] <SpacenearUS> New vehicle on the map: 03Vk4tec_chase - 12https://tracker.habhub.org/#!qm=All&q=Vk4tec_chase
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[00:00] --- Sun Feb 18 2018