sudo-discuss January 2017

sudo-discuss@sudoroom.org

34 participants
53 discussions

Part time javascript coder needed for sensor-based science education project

by Marc Juul

Coder needed for NSF-funded sensor-based science education project called InSPECT. The project focuses on using sensors and controllers for plant biology experiments. We're looking to hire someone part-time to work on programming (mainly in Javascript). Pay is $60/hour, All the software will be open source. Contact manylabs.org if interested.

9 years

Re: [sudo-discuss] Door hacking

by Jake

> I'll see what I can manage. Do you have a datasheet for the latch > release scheme you're using? i don't understand. you just flip the pin high for a few seconds like it does in the code and it unlatches the door. i guess you probably mean the motor controller shield, which is listed on line 12 of the code: https://www.arduino.cc/en/Main/ArduinoMotorShieldR3 but we won't be using that anymore, so the latch function will be very simple, just flipping a pin to undo the latch. the complicated part will be driving the three-phase permanent-magnet motor that I just rigged up, which will be the front-door opener for the omni: http://spaz.org/~jake/pix/omnidoormotor1.png http://i.imgur.com/FUp1dvu.jpg basically i will be controlling about 6 pins to drive that motor, and monitoring 2 pins which will tell me quadrature of its position for that purpose. and another output pin will control the latch. this is a diagram of a similar motor, except it shows three hall-effect sensors and i think our motor might only have two, is that possible? I need to look. http://www.avdweb.nl/Article_files/Solarbike/Motor-controller/4-Pole-brushl… this is the chip in the motor controller that I will be using, i worked on it last night and am half-done wiring it up: http://www.intersil.com/en/products/space-and-harsh-environment/harsh-envir… there are three of those, to control two three-phase permanent-magnet motors, because each motor needs three I-bridges. Since we only need one motor to move the door, i'll just use one of the ones on the second side for the latch solenoid. here are pictures of what i was doing last night: http://spaz.org/~jake/pix/2017-01/doormotor.html all you need to do is get the RFID code that Henner wrote to compile in arduino, and i can do the rest. what do you think of that? i look forward to working with you on this, i think it will be more fun and rewarding than some of the stuff we were doing before, since we'll actually be getting the door to open and close from software. the other thing is that there's more of a deadline on this project, since we're apparently able to get in trouble for not being ADA compliant. -jake

9 years

National Parks Climate Change report - should we save this on the sudoroom website?

by Romy Ilano

https://www.nps.gov/subjects/climatechange/culturalresourcesstrategy.htm we live in interesting times =/ ============================= Romy Ilano romy(a)snowyla.com

9 years

Bitcoin and Blockchain

by Maureen Muldavin

I'm currently trying to learn about bitcoin and blockchain as quickly as possible. I'd love to buy anyone who knows about these topics dinner. Maureen Sent from my iPhone

9 years

Fwd: [sudo-info] Undelivered Mail Returned to Sender

by danarauz＠gmail.com

hmm... ---------- Forwarded message ---------- From: *Mail Delivery System* <MAILER-DAEMON(a)sudoroom.org> Date: Monday, January 23, 2017 Subject: [sudo-info] Undelivered Mail Returned to Sender To: wordpress(a)sudoroom.org This is the mail system at host sudoroom.org. I'm sorry to have to inform you that your message could not be delivered to one or more recipients. It's attached below. For further assistance, please send mail to postmaster. If you do so, please include this problem report. You can delete your own text from the attached returned message. The mail system <cap1(a)stopcheater.com <javascript:;>>: Host or domain name not found. Name service error for name=stopcheater.com type=MX: Host not found, try again -- Daniel Signal: 415.336.9143 <https://whispersystems.org/> - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Help open a people-powered common space in Oakland, California! https://omnicommons.org/donate - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

9 years

Video shooting in CCL Monday

by Patrik D'haeseleer

Hi all, Just a quick heads-up that there will be a video crew shooting some footage in CCL this Monday. So please try to keep any noise to a minimum, especially within CCL / Sudo. We've scheduled the actual shooting to be mostly in the morning and early afternoon, so hopefully it won't interfere with other activities in the space. Thanks! Patrik

9 years

help build a motorized front-door opener for omni commons

by Jake

note: this email goes to four lists. Please reply only to the Access and Building lists to avoid clogging Omni and Sudo lists with this thread. I just want to bump this thread and see if anyone is available to work on the physical aspects of the door opener I describe below, and as shown in this diagram: http://spaz.org/~jake/pix/omnidoormotor1.png I am willing to do the electronics part of it and make it work with our existing system, but I would like others to help with the building of a bracket to hold the motor in place over the door, and the woodwork and nuts&bolts of making the 2x2 stick with steel cable attached to it. -jake On Tue, 17 Jan 2017, Jake wrote: > the wheelchair motor that Robb wanted to use for a projection screen > raise/lower thing is something else. > > The motor I want to use for the front door opener is this one: > > http://imgur.com/gallery/MLuT7 > > it's in sudoroom in a milk crate. Robb and I remove the wheel and the tire, > and now it's ready for the motor to be mounted on a bracket that will hold it > in the right place, which is slightly higher than the top of the door, and > basically 2' south of the door's hinges. > > then, a 2x2 of wood will attach to the top corner of the door with a hinge, > and > it will have a cord of this rubber-wrapped steel cable (which I have) go from > one end of the 2x2 to the other, taking a couple of turns around the motor > wheel. It will look like this: > > http://spaz.org/~jake/pix/omnidoormotor1.png > > as you can see from this diagram, when the motor turns its wheel clockwise > (as > viewed from above) the 2x2 stick will be pushed in the direction that opens > the > door. If it's not clear, the rubber-wrapped steel cable (shown in red/black > stripes) is attached to the 2x2 stick at both ends, but it makes a couple of > turns around the wheel of the motor on its way. > > anyway, i chose this motor because when it's not being energized with > electricity, it's free-moving which means it won't interfere with regular > door > movement. But when we activate it, it will be strong enough to open or close > the door as we tell it to do. > > The issues you mention about battery backup are not a problem. We already > have > a battery backup for the front door card (and soon RFID) access system, and > this motorized thing will be battery-backed as well. > > I am willing to do the electrical part of this project, and I have already > acquired the rubber-coated steel cable and motor, but I ask that other people > take care of mounting the motor on a suitable frame above the door and help > make the 2x2 stick on a hinge which will attach to the door. > > I will be at sudoroom tomorrow night (tuesday night at 7) in case anyone > wants > to meet with me about this. > > -jake > > On Mon, 16 Jan 2017, David Keenan wrote: > >> I remember hearing about that wheelchair motor -- if it's the same one, >> last I heard Robb had wanted to use it to raise/lower a projection screen >> for the stage..? So I didn't think of it for this project, but if we can >> use it and save ourselves some money, that's great! >> >> I realize you may have already considered this aspect but as a DIY opener >> will also need to comply with code requirements, do you think you can >> design a system measurably compliant with: >> >> - opening / closing force (<5lb) and speed (max. *N* seconds to close) >> requirements throughout the swing, during automatic operation and manual >> operation per ANSI/BHMA A156.19 for low-energy-operated doors, ICC A117.1, >> ADA and whatever may be found in CBC? >> >> - req'd UPS / backup battery power for opener, for *N* many operations >> (need to look it up) >> >> - compliant location of upper and lower door actuators (buttons), assume >> this will be no issue >> >> If it's helpful, here is a decent article I found that glosses the subject >> of codes for low-energy openers: >> http://www.constructionspecifier.com/understanding-new-accessibility-requir… >> <http://www.constructionspecifier.com/understanding-new-accessibility-requir…> >> >> Given the above, and I realize I only now just brought this up to you, but >> I guess my only concern about any DIY implementation is, if you / access >> group has the time to implement it relatively soon..? E.g., do you think it >> might be possible to complete in the next 2-3 weeks or so..? >> >> I realize perhaps that is an unfair question to ask before you've really >> started hacking on it, but I'm also trying to be realistic and pragmatic >> wrt to how busy everyone is and the understandably extended timelines of >> volunteer labor in general that comprises the bulk of omni efforts -- >> >> If after reviewing the door req's, you think a DIY system is doable in the >> next 2-3 wks, let me know how / when I can help hack on this and I will >> follow up with you and access control group directly -- and perhaps we can >> set a date to meet up about it? >> >> Best, >> David >> >> On Mon, Jan 16, 2017 at 12:20 AM, Maureen Muldavin <muldavin.m(a)gmail.com> >> wrote: >> >>> If you are working on RFID cards any possibility that the entrance to >>> sudo/ccl could get a card reader? Been wanting access control for >>> awhile. >>> >>> On Sun, Jan 15, 2017 at 11:46 PM, Jake <jake(a)spaz.org> wrote: >>>> i brought in a wheelchair motor a while ago that I think could be made >>> into >>>> a >>>> power door-opener pretty well. >>>> >>>> I can work on a proof-of-concept for that and then be able to show you >>> what >>>> I >>>> mean, and then we can see if it will be good enough for our needs as >>> opposed >>>> to >>>> spending $2800 on a "proper" door opener. >>>> >>>> as for the RFID cards, Alex and I have been working on implementing the >>> card >>>> reader thing for a little while and I think I can add it to the front >>> door >>>> pretty relatively easily.., and I guess i'll do that first, rather than >>>> trying >>>> to do a storage closet first? >>>> >>>> as always, if anyone wants to participate in this process they should >>>> definitely jump in, otherwise it's subject to my chaotic schedule. >>>> >>>> technical questions about making this happen should be sent to the access >>>> list >>>> and possibly the sudoroom list, but probably not the building list as it >>>> will >>>> be a major distraction if we get into the weeds of microcontroller boards >>>> and >>>> door server code... >>>> >>>> also, yes I do have the box of RFID stuff you ordered and i've been >>> working >>>> on >>>> it~ >>>> >>>> -jake >>>> >>>> On Sun, 15 Jan 2017, David Keenan wrote: >>>> >>>>> Hi Jake / access control folks - >>>>> >>>>> So now that our front door is publicly labelled as accessible, we need >>> to >>>>> install an automatic door opener & remote button (kickplate & >>> hand-height >>>>> or a long bar) to make it legal. >>>>> >>>>> Reason I bring this up to you guys is, the opener system will need to >>>>> integrate into our existing/future access control somehow. The quote I >>> got >>>>> is $2800 (50% parts, 50% labor) for a package including the Open Sesame >>>>> Model 233 (brochure >>>>> <http://www.opensesamedoor.com/index_htm_files/open_sesame_brochure.pdf >>>> , >>>>> spec >>>>> sheet <http://www.opensesamedoor.com/index_htm_files/specs_model233.pdf >>>> ), >>>>> >>>>> made in San Leandro. >>>>> >>>>> Also, some of us met last week re: sketching out Omni's accessibility >>>>> plan, >>>>> and Yar suggested this might be a good time to also implement RFID >>> system >>>>> for the front door, if that was possible? In part because, proximity to >>> an >>>>> RFID fob is more accessible than a card swipe which (after thinking >>> about >>>>> it) I realized requires a pincing motion that is likely not ADA... >>> because >>>>> of the excessive door opening pressure and iffy slope on the front >>>>> landing, >>>>> we need an RFID & auto-opener. >>>>> >>>>> So -- I'm not sure if any more work has been done on the RFID systems I >>>>> put >>>>> in sudo a little while ago (stashed in under-stair storage area), might >>> it >>>>> be possible to integrate these into the door opener? I note in the >>>>> brochure >>>>> they offer a keypad access option - perhaps an opportunity for 2-factor >>>>> authentication like Marc had talked about? Anyhow what do you guys >>> think? >>>>> >>>>> I apologize for not helping y'all more with a better access control >>> system >>>>> (helping spaces post-ghostship consumed my bandwidth), but as there is >>> now >>>>> renewed pressure I want to help as I can. Would installing a trial >>>>> RFID/throw on the Omni Office for example still be helpful towards >>> getting >>>>> this nailed down? Lmk >>>>> >>>>> Fwiw - I see the opener as pressing at this point not just 'cause its >>> long >>>>> overdue, but because every day our front door is labelled as accessible >>>>> when it's technically not, is actually a not-insignificant liability >>> issue >>>>> (accessibility lawsuit). Plus of course, we are still under scrutiny by >>>>> the >>>>> city, nimby neighbors trying to call us out for bogus reasons, etc etc. >>>>> And >>>>> per building code the front door must be made fully accessible before >>> any >>>>> other accessibility work starts on the rest of the building - at some >>>>> point >>>>> an inspector's gonna notice since they all go through that door..anyhow. >>>>> >>>>> Let me know how myself & those of us working on accessibility might be >>>>> able >>>>> to help - >>>>> >>>>> Best, >>>>> David >>>>> >>>> >>> >> > _______________________________________________ > access mailing list > access(a)lists.sudoroom.org > https://sudoroom.org/lists/listinfo/access >

9 years

looking for a notary comfortable with tech

by johanna faust

and by "comfortable with tech" i mean, uses a computer. seriously. a little familiarity goes a long way. feel free to reply privately, thank you. ff

9 years

Party tonight?

by Charley Sheets

There isn't one on the calendar at https://sudoroom.org/calendar/ Is anyone planning to show up tonight? I need to leave soon if I'm going to get there at a reasonable time (coming from Santa Clara). Perfectly willing to provide mac and cheese again tonight, but I don't want to go if no one will be there. -- Charley Sheets

9 years

Re: [sudo-discuss] Wanted: Activists to fight Trump - full time pay plus benefits and expenses

by Yousuf J Fahimuddin

Nice try Dom Tullipso. Date: Tue, 17 Jan 2017 17:25:44 -0800 > From: Autonomous <autonomous666(a)gmail.com> > > As a Demand Protest operative you will receive a monthly retainer of $2,500 > on top of our standard per-event pay of $50/hr, as long as you participate > in at least 6 events a year. We are extremely flexible and can work with > almost any existing work schedule. Full-time operatives receive health, > vision and dental insurance for families, flexible vacations, and paid > trainings. Travel expenses are always paid. > > http://sf.backpage.com/MiscJobs/get-paid-fighting-against-trump/48800067 > > Q: Who funds this? >

9 years

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sudo-discuss January 2017