https://www.noisebridge.net/api.php?action=feedcontributions&user=Sagannotcarl&feedformat=atomNoisebridge - User contributions [en]2024-03-28T09:28:11ZUser contributionsMediaWiki 1.39.4https://www.noisebridge.net/index.php?title=Wireless_Mesh_Network_Meetup&diff=8415Wireless Mesh Network Meetup2009-11-03T02:10:33Z<p>Sagannotcarl: /* Participants */</p>
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<div>== Wireless mesh networks ==<br />
[http://en.wikipedia.org/wiki/Wireless_mesh_network Wireless mesh networks] are growing in popularity, thanks in part to improved hardware and open-source solutions that are now available. In the US, broadband stimulus funding has recently given a boost to municipal and community wireless networks, including mesh networks.<br />
<br />
== Mesh networking meetup at Noisebridge ==<br />
We're holding a series of workshops at Noisebridge to learn more about mesh networking, and to work on some projects like installing open-source mesh firmware onto proprietary wireless routers. The next meetup is scheduled for:<br />
<br />
Date: Thursday, November 5, 2009, 6pm<br />
<br />
Location: Noisebridge, 2169 Mission St, San Francisco, CA<br />
<br />
== Participants ==<br />
If you'll be attending, please click "edit" and add your name here so we can try to have enough space and chairs for everyone!<br />
<br />
* [[User:mfb | mark B.]] ([http://510pen.org/ 510pen])<br />
* Graham Freeman ([http://cernio.com/cwn/ Cernio Tech Co-op])<br />
* Al B (owns far too many little meraki boxes)<br />
* [[User:Jof | jof]] (interested in AODV and OLSR/RA-OLSR protocols)<br />
* erin (interested in network design and general topic of mesh networking)<br />
* [[User:grantbow | grantbow]] ([http://wiki.laptop.org/go/OLPC_SanFranciscoBayArea OLPC-SF] contributor, [https://wiki.ubuntu.com/CaliforniaTeam Ubuntu] contributor)<br />
* Charles McLaughlin<br />
* [[User: sagannotcarl | Colin Sagan]]<br />
* Erik Hopp<br />
<br />
== Agenda ==<br />
# Intro to mesh networking: Protocols, firmware, hardware<br />
# Build a small mesh network in the noisebridge space<br />
# Current projects: reflashing Meraki routers, improving Open-Mesh router stability<br />
# Open-source management dashboard, captive portal, etc.<br />
<br />
== Previous Meetups ==<br />
* Thursday, October 15, 2009, 6pm<br />
* Thursday, October 1, 2009, 6pm<br />
* Thursday, September 17, 2009, 6pm<br />
<br />
[[Category:Events]] [[Category:Projects]]</div>Sagannotcarlhttps://www.noisebridge.net/index.php?title=Identity&diff=738Identity2008-07-02T17:42:08Z<p>Sagannotcarl: /* Current version */ adding a link to the vector version of the logo</p>
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<div>Our logo was designed by the [http://quilted.org/ Quilted] cooperative.<br />
<br />
= Current version =<br />
<br />
[https://www.noisebridge.net/index.php/Image:Logo_hires.png Logo_hires.png] is cropped from the version [[User:Sagannotcarl|Sagannotcarl]] published on the Quilted site:<br />
[http://clients.quilted.org/noisebridge/Noisebridge_circuit_v2.tif Tif file], [http://clients.quilted.org/noisebridge/Noisebridge_circuit_v2.ai Illustrator file]<br />
<br />
= Suggestions =<br />
<br />
While the color and concept is nice, the circuit is kind of ungrammatical. The little bumps on the top and bottom are used to emphasize that two wires are crossing over one another and not connecting --- but there's no other wire there for them to pass over.<br />
<br />
A simple way to fix this would be to add a vertical line through the middle of the logo all the way to the edge of the circle; that would render the circuit grammatically correct, although it still wouldn't be a circuit that did anything useful, except perhaps convert a little sound into heat.<br />
<br />
A perhaps cleverer idea would be to incorporate a "bridge" circuit into the logo. A bridge is a square with a diagonal, with things connected to the corners of the square not on the diagonal, and it's the simplest circuit that can't be decomposed into series and parallel subcomponents. A bridge rectifier with a speaker on the diagonal would be both a nice illustration of the name, and also might have interesting nonlinear audio effects (as an output stage, not as a noise generator itself) if you actually built it.<br />
<br />
[[User:Kragen|Kragen]] 16:19, 26 November 2007 (PST)<br />
<br />
= a bridge =<br />
<br />
After some IRC discussion, I'm uploading a photo of a pencil sketch of a [http://physics.kenyon.edu/EarlyApparatus/Electrical_Measurements/Wheatstone_Bridge/Wheatstone_Bridge.html Wheatstone bridge] with an AC power source and a speaker in place of the galvanometer.<br />
<br />
[[User:Kragen|Kragen]] 17:04, 26 November 2007 (PST)<br />
<br />
= pencil sketch =<br />
<br />
[[Image:Wheatstone-pencil.jpg]] [[User:Kragen|Kragen]] 17:17, 26 November 2007 (PST)<br />
<br />
= High res art from Quilted =<br />
<br />
[[Image:Noisebridge_circuit_v2_sm.jpg]]<br />
<br />
So I couldn't upload it here, but it's available from the Quilted site.[http://clients.quilted.org/noisebridge/Noisebridge_circuit_v2.tif]<br />
<br />
I didn't have time to incorporate all the good ideas above, so I threw an extra line in to appease the electronics crowd. This could definitely use some work to include the other ideas though.<br />
<br />
--[[User:Sagannotcarl|Sagannotcarl]] 19:29, 6 February 2008 (PST)<br />
<br />
<br />
= A Few Ideas =<br />
Got to playing with InkScape a bit today, and made a few noisebridge-themed things to consider.<br />
<br />
The circuit in the first is an audio signal going through a bridge rectifier to a speaker, which I haven't built (yet), but which would have the effect of kicking the fundamental frequency up an octave and distorting everything. The wheatstone circuit above would fit this layout too. This one had the interesting unintended side effect of being shaped like a cartoon rocket. The other two are just pseudo-oscilloscope buttons showing noise, keeping to the shape and color scheme of the current logo with a simpler theme. I uploaded these as pngs for easy web viewing, but if anyone wants the svgs to play around with let me know.<br />
<br />
[[Image:Nb_head1_bridge500.png]]<br />
<br />
[[Image:Nb_logo2_blackred_osc_250.png]]<br />
<br />
[[Image:Nb_logo_redblack_osc_250.png]]<br />
<br />
<br />
--[[User:Noahbalmer|Noahbalmer]] 14:13, 12 May 2008 (PDT)</div>Sagannotcarlhttps://www.noisebridge.net/index.php?title=User:Sagannotcarl&diff=475User:Sagannotcarl2008-02-07T03:33:23Z<p>Sagannotcarl: </p>
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<div>My name is Colin. <br />
<br />
My work is [http://quilted.org Quilted].<br />
<br />
I helped with the [[CI|logo]].</div>Sagannotcarlhttps://www.noisebridge.net/index.php?title=User:Sagannotcarl&diff=474User:Sagannotcarl2008-02-07T03:31:01Z<p>Sagannotcarl: New page: My name is Colin. My work is [http://quilted.org Quilted]. I helped with the logo.</p>
<hr />
<div>My name is Colin. <br />
<br />
My work is [http://quilted.org Quilted].<br />
<br />
I helped with the logo.</div>Sagannotcarlhttps://www.noisebridge.net/index.php?title=Identity&diff=473Identity2008-02-07T03:29:18Z<p>Sagannotcarl: </p>
<hr />
<div>Our logo was designed by the [http://quilted.org/ Quilted] cooperative.<br />
<br />
= Suggestions =<br />
<br />
While the color and concept is nice, the circuit is kind of ungrammatical. The little bumps on the top and bottom are used to emphasize that two wires are crossing over one another and not connecting --- but there's no other wire there for them to pass over.<br />
<br />
A simple way to fix this would be to add a vertical line through the middle of the logo all the way to the edge of the circle; that would render the circuit grammatically correct, although it still wouldn't be a circuit that did anything useful, except perhaps convert a little sound into heat.<br />
<br />
A perhaps cleverer idea would be to incorporate a "bridge" circuit into the logo. A bridge is a square with a diagonal, with things connected to the corners of the square not on the diagonal, and it's the simplest circuit that can't be decomposed into series and parallel subcomponents. A bridge rectifier with a speaker on the diagonal would be both a nice illustration of the name, and also might have interesting nonlinear audio effects (as an output stage, not as a noise generator itself) if you actually built it.<br />
<br />
[[User:Kragen|Kragen]] 16:19, 26 November 2007 (PST)<br />
<br />
= a bridge =<br />
<br />
After some IRC discussion, I'm uploading a photo of a pencil sketch of a [http://physics.kenyon.edu/EarlyApparatus/Electrical_Measurements/Wheatstone_Bridge/Wheatstone_Bridge.html Wheatstone bridge] with an AC power source and a speaker in place of the galvanometer.<br />
<br />
[[User:Kragen|Kragen]] 17:04, 26 November 2007 (PST)<br />
<br />
= pencil sketch =<br />
<br />
[[Image:Wheatstone-pencil.jpg]] [[User:Kragen|Kragen]] 17:17, 26 November 2007 (PST)<br />
<br />
= High res art =<br />
<br />
[[Image:Noisebridge_circuit_v2_sm.jpg]]<br />
<br />
So I couldn't upload it here, but it's available from the Quilted site.[http://clients.quilted.org/noisebridge/Noisebridge_circuit_v2.tif]<br />
<br />
I didn't have time to incorporate all the good ideas above, so I threw an extra line in to appease the electronics crowd. This could definitely use some work to include the other ideas though.<br />
<br />
--[[User:Sagannotcarl|Sagannotcarl]] 19:29, 6 February 2008 (PST)</div>Sagannotcarlhttps://www.noisebridge.net/index.php?title=File:Noisebridge_circuit_v2_sm.jpg&diff=472File:Noisebridge circuit v2 sm.jpg2008-02-07T03:24:43Z<p>Sagannotcarl: Low res version of what is available for download</p>
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<div>Low res version of what is available for download</div>Sagannotcarl