[Space] Meeting Notes 2010.04.06
Brian Choate
brian.choate at gmail.com
Wed Apr 7 22:25:41 UTC 2010
For the wifi base I have ready to go:
SSID: space-bridge
WPA2: space-bridge
I will have an RTSP clients available on the system I am bringing to run
the projector. If we have internet out to the world I might be able to
bounce the feed off one of my servers.
I have a 5v voltage regulator, plenty of 9v batter clips, and other
components to make a 9v powered power-supply for you if we want to go
that way .
B.
Chris Paget wrote:
> Yes indeedy, video is ready to go - give me an SSID, a WPA2 key, and 5V
> and I'll give you 640x480x15fps :) It has a somewhat clunky but totally
> usable web client to view the video, or it also supports RTSP if anyone
> wants to do something more clever with it.
>
> What time tomorrow are we meeting at NASA?
>
> Cheers!
>
> Chris
>
>
> On 04/07/2010 02:01 PM, Christopher Lincoln wrote:
>
>> Sweet! then we can check everything Thursday when we get there for set
>> up. ^_^
>>
>> time-lapsing the photos would be cool. Hopefully the balloon will not
>> move much and our pictures will be stable.
>>
>> Christopher
>>
>>
>> On Wed, Apr 7, 2010 at 1:18 PM, Christie Dudley <longobord at gmail.com
>> <mailto:longobord at gmail.com>> wrote:
>>
>> You know, that thought hadn't occurred to me but it makes perfect
>> sense to have the traditional "payload" on the table. It should be
>> pretty easy to deal with batteries and charging of things we have in
>> our hands.
>>
>> One thing that would be a neat to do with the camera we usually send
>> up there is to create a time-lapse of the event. It would be a cool
>> promotional thing for us and them after the fact.
>>
>> Chris got the webcam/single board computer/wifi working completely,
>> but it needs a 5V power supply. I have a battery for my phone that
>> provides 5V on USB that we can use, but we haven't done measurements
>> on how long it would last. If other folks have these it might be
>> nice to be able to swap this out.
>>
>> We will be at Moffet tomorrow to set up and get this all going. I'm
>> sure we can figure something out then.
>>
>> Christie
>> _______
>> "We also briefly discussed having officers replaced by very small
>> shell scripts." -- Noisebridge meeting notes 2008-06-17
>>
>> The outer bounds is only the beginning.
>> http://www.flickr.com/photos/genriel/sets/72157623376093724/
>>
>>
>> On Wed, Apr 7, 2010 at 10:54 AM, Blake Barrett
>> <Blake at blakebarrett.net <mailto:Blake at blakebarrett.net>> wrote:
>>
>> I agree with Brian. The payload would better serve us on the
>> ground where it can be shown and handled. We also shouldn't have
>> any trouble tracking our display balloon as it will be in
>> persistent low-altitude geosynchronous orbit ;-)
>> I like the idea of being able to show people that amazing things
>> can be done with readily available parts/components; having
>> those things available to handle just reinforces that message to
>> the kids and attendees who we are presenting to.
>> We are showing/displaying at the education fair, not performing
>> a live launch.
>> Just my $(1/50).
>>
>> Blake
>>
>>
>> On Wed, Apr 7, 2010 at 10:38 AM, Brian Choate
>> <brian.choate at gmail.com <mailto:brian.choate at gmail.com>> wrote:
>>
>> We will have the usb set up ready to go in case the wireless
>> does not
>> work out. The USB gear we are using is designed for working
>> up to 64',
>> so it will work just fine for what we need. We also
>> calculated the
>> weight into our planning.
>>
>> It doesn't make much sense to send the normal payload up
>> (i.e. - g1's,
>> radios, gps, etc...). Those pieces would be far better as
>> part of the
>> table top display.
>>
>> B.
>>
>>
>> Christie Dudley wrote:
>> > I REALLY think we should skip the USB and as much of our
>> effort as
>> > possible should be put into getting wifi working. I think
>> Chris
>> > stayed home from the meeting to work on this, so it's not
>> being
>> > forgotten. It won't take much effort to get this built
>> and working,
>> > considering he has a device that pretty much does that
>> already.
>> >
>> > Has anyone tried to make a USB connection work through
>> what you're
>> > talking about? The thought of running USB that far gives
>> me protocol
>> > nightmares. It wasn't meant to run that far and you're
>> going to run
>> > into frustrating glitchy behavior because of spurious and
>> > unpredictable timeouts. The weight of the cables will not be
>> > inconsiderable and the connectors won't stay well
>> connected. In order
>> > to get it up to the height we were talking about, you'd
>> need to have 3
>> > hubs - 4 segments.
>> >
>> > The alternative would be to mount the payload lower, but
>> with only 1
>> > hub, you're going to only get about 30 feet (the protocol
>> limitation
>> > you mention is 16.4'), and you just won't get the cool
>> video coverage
>> > of being at height.
>> >
>> > I have the package tracker at work. I put it in my bag
>> when we pulled
>> > it out of the payload.
>> >
>> > I'm more than a little concerned about battery life over
>> the course of
>> > the event. We ordinarily plan for 5 hour flights. This
>> thing is
>> > going to be going for 2 days, >12 hours continuously on
>> Saturday. Do
>> > we have spare batteries for everything, or is there some
>> scheme we can
>> > come up with to get them and install them if necessary?
>> >
>> > I foresee Friday night, us wanting to pull the payload
>> down and get
>> > everything on chargers so we have full life for Saturday,
>> at the very
>> > least. I think I still have a spare G1 battery and we
>> could swap the
>> > battery for the second radio (it is NOT a walkie talkie.
>> Ahem.) for
>> > the one we have on the payload mid-day. I'm curious about
>> the camera
>> > batteries, though.
>> >
>> > I know Chris was talking about getting a single board
>> computer with
>> > built in wifi working. We should probably just toss in a
>> router to
>> > our kit so we can communicate to it. We should keep in
>> mind we might
>> > need on-site reconfiguration capabilities so we can work
>> with any wifi
>> > they may be providing.
>> >
>> > Meredith, do you know if they will be providing wireless
>> that we will
>> > be expected to use, or do we need to bring our own? I
>> think it'd be a
>> > lot better if given the choice, we use our own. It's much
>> easier to
>> > configure and test that way. Also the distance is short
>> enough that
>> > I'm not overly concerned with getting a good signal if
>> we're able to
>> > be more or less directly beneath it, although I think
>> Chris and I
>> > should test whatever setup we come up with just in case.
>> >
>> > Christie
>> > _______
>> > "We also briefly discussed having officers replaced by
>> very small
>> > shell scripts." -- Noisebridge meeting notes 2008-06-17
>> >
>> > The outer bounds is only the beginning.
>> > http://www.flickr.com/photos/genriel/sets/72157623376093724/
>> >
>> >
>> > On Wed, Apr 7, 2010 at 12:16 AM, Christopher Lincoln
>> > <cclinco at gmail.com <mailto:cclinco at gmail.com>
>> <mailto:cclinco at gmail.com <mailto:cclinco at gmail.com>>> wrote:
>> >
>> > as we are getting short on time, set up happens on
>> Thursday, we
>> > decided to work with the simplest plan. If we are
>> able to get the
>> > wireless webcams to work, great, if not, we will have
>> the USB bulk
>> > extenders as a back up.
>> >
>> > Christopher
>> >
>> >
>> >
>> >
>> > On Wed, Apr 7, 2010 at 12:05 AM, Chris Paget
>> > <ivegotta at tombom.co.uk <mailto:ivegotta at tombom.co.uk>
>> <mailto:ivegotta at tombom.co.uk
>> <mailto:ivegotta at tombom.co.uk>>> wrote:
>> >
>> > Wait, what happened to the wifi plan? I've got a
>> nice little
>> > wireless
>> > webcam here that only needs 2 wires to give it 5V
>> and it'll
>> > give you
>> > live video over wifi. I thought someone else was
>> bringing an
>> > access
>> > point for my wifi stream to land at - what's with
>> the USB bulk
>> > extenders?
>> >
>> > Cheers!
>> >
>> > Chris
>> >
>> >
>> > On 04/06/2010 11:57 PM, Christopher Lincoln wrote:
>> > > Spacebridge Meeting notes 2010.04.06
>> > >
>> > > Yuri's Night
>> > > - Balloon (bring clean (and spare) and tampered
>> one)
>> > > - paracord 300 feet (Brian is pickign that up)
>> > > - Helium (2 tanks, Nils)
>> > > - Nils will drop off teh helium tanks on thursday
>> > > - Nils will bring his 7 gallon jug will water
>> > >
>> > > Payload
>> > > - Styro bin (.7 lb)
>> > > - 300 ft paracord (.8 lb) (Brian)
>> > > - 6 pin M to 4 pin M USB adapter
>> > > - 3x 15' feet of USB repeater cable (1 lb per
>> 15 ft) (Brian)
>> > > - 1 spare USB hub ( to bridge the 5 meter limit
>> for USB)
>> > [40 grams each]
>> > > - 1 canons for after the fact pictures [.4 lbs
>> each]
>> > > - USB cam [30 grams]
>> > > - noisebridge banner
>> > >
>> > > Display table
>> > > - payload bus
>> > > - parachute
>> > > - G1
>> > > - Opentracker
>> > > - GPS antenna
>> > > - Cable harness
>> > > - Dipole antenna
>> > > - Package tracker (if found)
>> > > - walky talky
>> > > - A700 camera (Blake)
>> > > - paracord (Brian)
>> > >
>> > > Auxiliary
>> > > - Zipties (Brian)
>> > > - 12' x 12' Tarp (Brian)
>> > > - Latex gloves (Brian)
>> > > - Gaff tape (Brian)
>> > > - Powerstrip (provided)
>> > > - Table (provided)
>> > > - 22" LCD Monitor (Albert)
>> > > - laptop x2 (Christopher for projector w/
>> slideshow, Brian
>> > for webcam feed)
>> > > - projector screen (Christopher)
>> > > - projector
>> > > - USB drive with images (Christopher)
>> > >
>> > > DO:
>> > > - Email NASA to get names on setup list(Chris)
>> > >
>> > >
>> > >
>> > >
>> > > We are missing a cardboard box full of stuff
>> that was
>> > present at the
>> > > last launch
>> > > What we know is missing
>> > > - G1
>> > > - Package tracker
>> > > - balloon
>> > > - ziptie bag
>> > >
>> > >
>> > >
>> > >
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>>
>> --
>> Blake
>> blake at blakebarrett.net <mailto:blake at blakebarrett.net>
>> 1 559 455 7855
>>
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