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Today's Topics:
1. Re: Robogames (Patrik D'haeseleer)
2. Re: oscilloscope, power supply, signal generator "donation" (Jake)
3. Re: oscilloscope, power supply, signal generator "donation"
(Anthony Di Franco)
4. Re: oscilloscope, power supply, signal generator "donation" (Zach)
5. Re: Robogames (Cere Misc)
6. dell server racks? (robb)
7. Re: dell server racks? (Jake)
8. Re: dell server racks? (robb)
9. Re: dell server racks? (Morgan Allen)
10. Schedule change and update from last meeting/hacknight and
(Marc Juul)
11. Re: dell server racks? (danarauz@gmail.com)
12. Re: dell server racks? (Marc Juul)
13. vending machine homing switch mystery solved (Jake)
14. Re: vending machine homing switch mystery solved (Mitch Altman)
15. Re: Schedule change and update from last meeting/hacknight
and (Jenny Ryan)
16. Re: vending machine homing switch mystery solved (Jake)
17. Re: vending machine homing switch mystery solved (Mitch Altman)
----------------------------------------------------------------------
Message: 1
Date: Fri, 8 Apr 2016 00:19:17 -0700
From: "Patrik D'haeseleer" <patrikd@gmail.com>
To: Tracy Jacobs <kinetical@comcast.net>
Cc: Sudo room <sudo-discuss@lists.sudoroom.org>
Subject: Re: [sudo-discuss] Robogames
Message-ID:
<CAKOjizPyC85-NLv35CUaoKaV8qiSWr7JjT7+ki3pucHCYhqeyA@mail.gmail.com>
Content-Type: text/plain; charset="utf-8"
Yeah, both days are fun. You sometimes get some of the more spectacular
displays of destruction on Saturday. And by Sunday, many of the bots have
some amount of damage accumulated, or might be more focused on making it
into the finals than on putting up a show.
Either way, really entertaining both days. And some top-notch driving and
engineering skills on display.
Patrik
On Thu, Apr 7, 2016 at 11:30 PM, Tracy Jacobs <kinetical@comcast.net> wrote:
> Either one, it’s always good. You should go if you haven’t been! Tracy
> On Apr 7, 2016, at 9:47 PM, Adam <adam@aperture.systems> wrote:
>
> > I'm not sure what day is the best one to go. If it's structured like
> > FRC matches, day 1 may not be too spectacular.
> > - - - - Begin automatically generated footer - - - -
> >
> > Director of Research, Aperture Systems: http://aperture.systems
> > Weblog: http://www.adammunich.com
> > Cell: +1-650-452-0554, M-F 10a - 8p PST
> >
> > Note: To protect against computer viruses, e-mail programs may prevent
> > sending or receiving certain types of file attachments. Check your
> > e-mail security settings to determine how attachments are handled.
> >
> > Confidentiality Notice: This electronic mail transmission is intended
> > for the use of the individual or entity to which it is addressed and
> > may contain confidential and/or proprietary information belonging to
> > the sender. If you are not the intended recipient, you are hereby
> > notified that any disclosure, use, copying, distribution, or the
> > taking of any action in reliance on the contents of this information
> > is strictly prohibited. If you have received this transmission in
> > error, please notify the sender immediately by e-mail and delete the
> > original message. Thank you for your cooperation.
> >
> >
> > On Thu, Apr 7, 2016 at 9:45 PM, Tracy Jacobs <kinetical@comcast.net>
> wrote:
> >> Is it in Livermore this year?
> >> I’d recommend it, I have been many times, normally as a participant.
> They have a robotic art section of the competition too!
> >>
> >> Tracy
> >> On Apr 7, 2016, at 7:58 PM, Adam <adam@aperture.systems> wrote:
> >>
> >>> Is this weekend in livermore.
> >>>
> >>> I'm considering going. Tickets are $30/day, but it may be worth it to
> >>> see robots get smashed and go through varied challenges.
> >>>
> >>> Anyone else?
> >>>
> >>>
> >>>
> >>> - - - - Begin automatically generated footer - - - -
> >>>
> >>> Director of Research, Aperture Systems: http://aperture.systems
> >>> Weblog: http://www.adammunich.com
> >>> Cell: +1-650-452-0554, M-F 10a - 8p PST
> >>>
> >>> Note: To protect against computer viruses, e-mail programs may prevent
> >>> sending or receiving certain types of file attachments. Check your
> >>> e-mail security settings to determine how attachments are handled.
> >>>
> >>> Confidentiality Notice: This electronic mail transmission is intended
> >>> for the use of the individual or entity to which it is addressed and
> >>> may contain confidential and/or proprietary information belonging to
> >>> the sender. If you are not the intended recipient, you are hereby
> >>> notified that any disclosure, use, copying, distribution, or the
> >>> taking of any action in reliance on the contents of this information
> >>> is strictly prohibited. If you have received this transmission in
> >>> error, please notify the sender immediately by e-mail and delete the
> >>> original message. Thank you for your cooperation.
> >>> _______________________________________________
> >>> sudo-discuss mailing list
> >>> sudo-discuss@lists.sudoroom.org
> >>> https://sudoroom.org/lists/listinfo/sudo-discuss
> >>
>
> _______________________________________________
> sudo-discuss mailing list
> sudo-discuss@lists.sudoroom.org
> https://sudoroom.org/lists/listinfo/sudo-discuss
>
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Message: 2
Date: Fri, 8 Apr 2016 14:24:43 -0500 (CDT)
From: Jake <jake@spaz.org>
To: Anthony Di Franco <di.franco@gmail.com>
Cc: Zach T <organic_unity@yahoo.com>, sudo-discuss@lists.sudoroom.org,
jacobmowbray@gmail.com
Subject: Re: [sudo-discuss] oscilloscope, power supply, signal
generator "donation"
Message-ID: <alpine.BSF.2.20.1604081423340.91568@pe710.spaz.org>
Content-Type: text/plain; charset="utf-8"; Format="flowed"
Thanks Anthony!
Why not the oscilloscope? Not enough room? Perhaps Jacob can pick it up,
I think he was going to pick it all up himself originally.
That oscilloscope apparently has some 16-line digital analyzer built in,
could be really awesome.
-jake
On Fri, 8 Apr 2016, Anthony Di Franco wrote:
> I got everything except the oscilloscope,[IMAGE]
>
> It's on the back bench.
>
> On Thu, Apr 7, 2016, 13:53 Jake <jake@spaz.org> wrote:
> Zach wants to donate these nice pieces of test equipment to sudoroom:
>
> http://imgur.com/wZuPmi2
> http://imgur.com/LTSFfOe
> http://imgur.com/oQQsfgc
>
> and Jacob M. has volunteered to go pick them up (although he doesn't have
> a car and they're in SF)
>
> Does anyone with a car want to go to SF to pick them up?
>
> but Zach wants to know that he can get them back whenever he wants.
>
> Zach, Sudoroom can't guarantee the safety of your equipment that is left
> there. But I can say that my LeCroy 9150 and Sorensen DCR-2025B and lots
> of other good stuff are there and i'm not worried about them, and you
> shouldn't worry either. If you ever need to come get these things back
> you can do so. We appreciate you letting us use them in the meantime.
>
> -jake
> _______________________________________________
> sudo-discuss mailing list
> sudo-discuss@lists.sudoroom.org
> https://sudoroom.org/lists/listinfo/sudo-discuss
>
>
>
------------------------------
Message: 3
Date: Fri, 08 Apr 2016 19:43:11 +0000
From: Anthony Di Franco <di.franco@gmail.com>
To: Jake <jake@spaz.org>
Cc: Zach T <organic_unity@yahoo.com>, sudo-discuss@lists.sudoroom.org,
jacobmowbray@gmail.com
Subject: Re: [sudo-discuss] oscilloscope, power supply, signal
generator "donation"
Message-ID:
<CAOJkv1pSLETV_W9SmKYS5ztTMujvLYyMT7Op2QBMuRHMeh6bxQ@mail.gmail.com>
Content-Type: text/plain; charset="utf-8"
Indeed, no room this time. I could maybe grab it tonight if Jacob doesn't,
but despite my XXL milk crates there are still size / fragility concerns.
On Fri, Apr 8, 2016, 12:24 Jake <jake@spaz.org> wrote:
> Thanks Anthony!
>
> Why not the oscilloscope? Not enough room? Perhaps Jacob can pick it up,
> I think he was going to pick it all up himself originally.
>
> That oscilloscope apparently has some 16-line digital analyzer built in,
> could be really awesome.
>
> -jake
>
> On Fri, 8 Apr 2016, Anthony Di Franco wrote:
>
> > I got everything except the oscilloscope,[IMAGE]
> >
> > It's on the back bench.
> >
> > On Thu, Apr 7, 2016, 13:53 Jake <jake@spaz.org> wrote:
> > Zach wants to donate these nice pieces of test equipment to
> sudoroom:
> >
> > http://imgur.com/wZuPmi2
> > http://imgur.com/LTSFfOe
> > http://imgur.com/oQQsfgc
> >
> > and Jacob M. has volunteered to go pick them up (although he
> doesn't have
> > a car and they're in SF)
> >
> > Does anyone with a car want to go to SF to pick them up?
> >
> > but Zach wants to know that he can get them back whenever he wants.
> >
> > Zach, Sudoroom can't guarantee the safety of your equipment that
> is left
> > there. But I can say that my LeCroy 9150 and Sorensen DCR-2025B
> and lots
> > of other good stuff are there and i'm not worried about them, and
> you
> > shouldn't worry either. If you ever need to come get these things
> back
> > you can do so. We appreciate you letting us use them in the
> meantime.
> >
> > -jake
> > _______________________________________________
> > sudo-discuss mailing list
> > sudo-discuss@lists.sudoroom.org
> > https://sudoroom.org/lists/listinfo/sudo-discuss
> >
> >
> >
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Message: 4
Date: Fri, 8 Apr 2016 19:44:43 +0000 (UTC)
From: Zach <organic_unity@yahoo.com>
To: Anthony Di Franco <di.franco@gmail.com>, Jake <jake@spaz.org>
Cc: Zach T <organic_unity@yahoo.com>, sudo-discuss@lists.sudoroom.org,
jacobmowbray@gmail.com
Subject: Re: [sudo-discuss] oscilloscope, power supply, signal
generator "donation"
Message-ID:
<2087650916.1910735.1460144684001.JavaMail.yahoo@mail.yahoo.com>
Content-Type: text/plain; charset=UTF-8
Im going to hold on to the scope for now. Have fun with the bench supply and other gear.
-Zach
--------------------------------------------
On Fri, 4/8/16, Jake <jake@spaz.org> wrote:
Subject: Re: [sudo-discuss] oscilloscope, power supply, signal generator "donation"
To: "Anthony Di Franco" <di.franco@gmail.com>
Cc: sudo-discuss@lists.sudoroom.org, "Zach T" <organic_unity@yahoo.com>, jacobmowbray@gmail.com
Date: Friday, April 8, 2016, 12:24 PM
Thanks Anthony!
Why not the oscilloscope?
Not enough room? Perhaps Jacob can pick it up,
I think he was going to pick it all up himself
originally.
That
oscilloscope apparently has some 16-line digital analyzer
built in,
could be really awesome.
-jake
On Fri, 8 Apr 2016, Anthony Di Franco wrote:
> I got everything except
the oscilloscope,[IMAGE]
>
>
It's on the back bench.
>
> On Thu, Apr 7, 2016, 13:53 Jake <jake@spaz.org>
wrote:
> Zach wants to
donate these nice pieces of test equipment to sudoroom:
>
> http://imgur.com/wZuPmi2
> http://imgur.com/LTSFfOe
> http://imgur.com/oQQsfgc
>
>
and Jacob M. has volunteered to go pick them
up (although he doesn't have
>
a car and they're in SF)
>
>
Does anyone with a car want to go to SF to
pick them up?
>
>
but Zach wants to know that he can get them
back whenever he wants.
>
> Zach, Sudoroom
can't guarantee the safety of your equipment that is
left
> there. But I
can say that my LeCroy 9150 and Sorensen DCR-2025B and
lots
> of other good
stuff are there and i'm not worried about them, and
you
> shouldn't
worry either. If you ever need to come get these things
back
> you can do
so. We appreciate you letting us use them in the
meantime.
>
>
-jake
>
_______________________________________________
> sudo-discuss mailing
list
> sudo-discuss@lists.sudoroom.org
> https://sudoroom.org/lists/listinfo/sudo-discuss
>
>
>
------------------------------
Message: 5
Date: Fri, 8 Apr 2016 13:31:16 -0700
From: Cere Misc <cere.misc@gmail.com>
To: "Patrik D'haeseleer" <patrikd@gmail.com>
Cc: Sudo room <sudo-discuss@lists.sudoroom.org>
Subject: Re: [sudo-discuss] Robogames
Message-ID:
<CAKtSE-tw3DPgD3FudEjSaw0PSg=NqG+GP2wW==ukX=zhT9b+fQ@mail.gmail.com>
Content-Type: text/plain; charset="utf-8"
The stupid in me is really tempted to go to this given that it's actually
possible to get there via mass transit.
On Thu, Apr 7, 2016 at 10:04 PM, Patrik D'haeseleer <patrikd@gmail.com>
wrote:
> It's at the Pleasanton fairgrounds this year. Always tons of fun, if you
> enjoy watching heavy machines beat the crap out of each other :-)
>
> Patrik
>
> On Thu, Apr 7, 2016 at 9:45 PM, Tracy Jacobs <kinetical@comcast.net>
> wrote:
>
>> Is it in Livermore this year?
>> I’d recommend it, I have been many times, normally as a participant.
>> They have a robotic art section of the competition too!
>>
>> Tracy
>> On Apr 7, 2016, at 7:58 PM, Adam <adam@aperture.systems> wrote:
>>
>> > Is this weekend in livermore.
>> >
>> > I'm considering going. Tickets are $30/day, but it may be worth it to
>> > see robots get smashed and go through varied challenges.
>> >
>> > Anyone else?
>> >
>> >
>> >
>> > - - - - Begin automatically generated footer - - - -
>> >
>> > Director of Research, Aperture Systems: http://aperture.systems
>> > Weblog: http://www.adammunich.com
>> > Cell: +1-650-452-0554, M-F 10a - 8p PST
>> >
>> > Note: To protect against computer viruses, e-mail programs may prevent
>> > sending or receiving certain types of file attachments. Check your
>> > e-mail security settings to determine how attachments are handled.
>> >
>> > Confidentiality Notice: This electronic mail transmission is intended
>> > for the use of the individual or entity to which it is addressed and
>> > may contain confidential and/or proprietary information belonging to
>> > the sender. If you are not the intended recipient, you are hereby
>> > notified that any disclosure, use, copying, distribution, or the
>> > taking of any action in reliance on the contents of this information
>> > is strictly prohibited. If you have received this transmission in
>> > error, please notify the sender immediately by e-mail and delete the
>> > original message. Thank you for your cooperation.
>> > _______________________________________________
>> > sudo-discuss mailing list
>> > sudo-discuss@lists.sudoroom.org
>> > https://sudoroom.org/lists/listinfo/sudo-discuss
>>
>> _______________________________________________
>> sudo-discuss mailing list
>> sudo-discuss@lists.sudoroom.org
>> https://sudoroom.org/lists/listinfo/sudo-discuss
>>
>
>
> _______________________________________________
> sudo-discuss mailing list
> sudo-discuss@lists.sudoroom.org
> https://sudoroom.org/lists/listinfo/sudo-discuss
>
>
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Message: 6
Date: Fri, 8 Apr 2016 16:23:17 -0700
From: robb <sf99er@gmail.com>
To: Sudo-discuss <sudo-discuss@lists.sudoroom.org>
Subject: [sudo-discuss] dell server racks?
Message-ID:
<CAGwQJQBPEJmfeNuLJnkoATHyACrOYgpzcSHfm7Kk8NRJZvw0Bw@mail.gmail.com>
Content-Type: text/plain; charset="utf-8"
guy came to sudo asking if we want any dell server racks.
he. claims they are nicer than the ones we have.
he has 10
cheers
~r
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Message: 7
Date: Fri, 8 Apr 2016 18:31:09 -0500 (CDT)
From: Jake <jake@spaz.org>
To: robb <sf99er@gmail.com>
Cc: Sudo-discuss <sudo-discuss@lists.sudoroom.org>
Subject: Re: [sudo-discuss] dell server racks?
Message-ID: <alpine.BSF.2.20.1604081830580.91568@pe710.spaz.org>
Content-Type: text/plain; charset=US-ASCII; format=flowed
nooooooo
On Fri, 8 Apr 2016, robb wrote:
> guy came to sudo asking if we want any dell server racks.
> he. claims they are nicer than the ones we have.
> he has 10
> cheers
> ~r
>
>
------------------------------
Message: 8
Date: Fri, 8 Apr 2016 16:41:46 -0700
From: robb <sf99er@gmail.com>
To: Jake <jake@spaz.org>
Cc: Sudo-discuss <sudo-discuss@lists.sudoroom.org>
Subject: Re: [sudo-discuss] dell server racks?
Message-ID:
<CAGwQJQCD5nVH3+rT2DoPQUTCRMeOoRXfJAoMhZOBF4TmvN4muQ@mail.gmail.com>
Content-Type: text/plain; charset="utf-8"
thx for the speedy response, jake!
how many do we want?
;)
On Fri, Apr 8, 2016 at 4:31 PM, Jake <jake@spaz.org> wrote:
> nooooooo
>
>
> On Fri, 8 Apr 2016, robb wrote:
>
> guy came to sudo asking if we want any dell server racks.
>> he. claims they are nicer than the ones we have.
>> he has 10
>> cheers
>> ~r
>>
>>
>>
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Message: 9
Date: Fri, 8 Apr 2016 17:48:31 -0700
From: Morgan Allen <morganrallen@gmail.com>
To: robb <sf99er@gmail.com>
Cc: Sudo-discuss <sudo-discuss@lists.sudoroom.org>
Subject: Re: [sudo-discuss] dell server racks?
Message-ID:
<CALArMGRSEbQsDxSTwQctHuBUHKmA8a+Kc7HBwwqLjmWKJ3JzFw@mail.gmail.com>
Content-Type: text/plain; charset="utf-8"
Free after labor.
On Fri, Apr 8, 2016 at 4:41 PM, robb <sf99er@gmail.com> wrote:
> thx for the speedy response, jake!
> how many do we want?
> ;)
>
> On Fri, Apr 8, 2016 at 4:31 PM, Jake <jake@spaz.org> wrote:
>
>> nooooooo
>>
>>
>> On Fri, 8 Apr 2016, robb wrote:
>>
>> guy came to sudo asking if we want any dell server racks.
>>> he. claims they are nicer than the ones we have.
>>> he has 10
>>> cheers
>>> ~r
>>>
>>>
>>>
>
> _______________________________________________
> sudo-discuss mailing list
> sudo-discuss@lists.sudoroom.org
> https://sudoroom.org/lists/listinfo/sudo-discuss
>
>
--
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Message: 10
Date: Fri, 8 Apr 2016 18:26:14 -0700
From: Marc Juul <juul@labitat.dk>
To: sudo-discuss <sudo-discuss@lists.sudoroom.org>
Subject: [sudo-discuss] Schedule change and update from last
meeting/hacknight and
Message-ID:
<CAL4ejvQiz9-YZyx39kyAO+AVtmQJnBQ6UY-v-206qmwRghudMg@mail.gmail.com>
Content-Type: text/plain; charset="utf-8"
Unless someone complains I'm dropping the Thursday evening events for now.
That means that we have one weekly meeting only: Tuesday at 7:30 pm.
Last meeting I was planning to prototype a 12v power cable. A couple of new
meshers showed up though. I'm sure these won't be people who show up once
and then never again since one is already an active sudo'er and the other
is a ccl'er. I ended up intro-ing them to the mesh. One of them should be
able to tie intro existing mesh connections in west oakland but needed
approval from housemates, the other person has a view of lake merritt and
he took a home node and picostation extender back with him :)
Next Tuesday I want to try to solder those cables and we need to design a
sticker that annotates what each port on the home node is used for so we
don't have to manually make little notes/stickers every time.
--
marc/juul
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Message: 11
Date: Fri, 8 Apr 2016 19:40:22 -0700
From: "danarauz@gmail.com" <danarauz@gmail.com>
To: Morgan Allen <morganrallen@gmail.com>
Cc: robb <sf99er@gmail.com>, Sudo-discuss
<sudo-discuss@lists.sudoroom.org>
Subject: Re: [sudo-discuss] dell server racks?
Message-ID:
<CAPMS6zY-w25r3JxpyYhBjUbcYdryTKK2yLki157CZxh6AwChuA@mail.gmail.com>
Content-Type: text/plain; charset="utf-8"
Last time I checked the servers that were donated to sudo were low end
servers and also had not rails. Then from a difference source, we got some
rails to try out, but not sure how much luck are we going to have. -----So,
perhaps wouldn't hurt to ask model is he wanting to donate.
On Fri, Apr 8, 2016 at 5:48 PM, Morgan Allen <morganrallen@gmail.com> wrote:
> Free after labor.
>
> On Fri, Apr 8, 2016 at 4:41 PM, robb <sf99er@gmail.com> wrote:
>
>> thx for the speedy response, jake!
>> how many do we want?
>> ;)
>>
>> On Fri, Apr 8, 2016 at 4:31 PM, Jake <jake@spaz.org> wrote:
>>
>>> nooooooo
>>>
>>>
>>> On Fri, 8 Apr 2016, robb wrote:
>>>
>>> guy came to sudo asking if we want any dell server racks.
>>>> he. claims they are nicer than the ones we have.
>>>> he has 10
>>>> cheers
>>>> ~r
>>>>
>>>>
>>>>
>>
>> _______________________________________________
>> sudo-discuss mailing list
>> sudo-discuss@lists.sudoroom.org
>> https://sudoroom.org/lists/listinfo/sudo-discuss
>>
>>
>
>
> --
>
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> -----END PGP PUBLIC KEY BLOCK-----
>
> _______________________________________________
> sudo-discuss mailing list
> sudo-discuss@lists.sudoroom.org
> https://sudoroom.org/lists/listinfo/sudo-discuss
>
>
--
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
- - - - - - - - - - - -
Help open a people-powered common space in Oakland, California!
https://omnicommons.org/donate
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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Message: 12
Date: Fri, 8 Apr 2016 19:59:31 -0700
From: Marc Juul <juul@labitat.dk>
To: robb <sf99er@gmail.com>
Cc: Sudo-discuss <sudo-discuss@lists.sudoroom.org>
Subject: Re: [sudo-discuss] dell server racks?
Message-ID:
<CAL4ejvSJ59x9Rko+WFq15iqMfeOF1vAXMV3q+LsAnK6Ox=X-yA@mail.gmail.com>
Content-Type: text/plain; charset="utf-8"
On Friday, April 8, 2016, robb <sf99er@gmail.com> wrote:
> thx for the speedy response, jake!
> how many do we want?
>
exactly 0
>
> ;)
>
> On Fri, Apr 8, 2016 at 4:31 PM, Jake <jake@spaz.org
> <javascript:_e(%7B%7D,'cvml','jake@spaz.org');>> wrote:
>
>> nooooooo
>>
>>
>> On Fri, 8 Apr 2016, robb wrote:
>>
>> guy came to sudo asking if we want any dell server racks.
>>> he. claims they are nicer than the ones we have.
>>> he has 10
>>> cheers
>>> ~r
>>>
>>>
>>>
>
:
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Message: 13
Date: Sat, 9 Apr 2016 17:42:06 -0500 (CDT)
From: Jake <jake@spaz.org>
To: sudo-discuss@lists.sudoroom.org, Adam Munich
<adam@aperture.systems>, Zach T <organic_unity@yahoo.com>,
emmaselephants33@gmail.com, echoudhry@gmail.com
Subject: [sudo-discuss] vending machine homing switch mystery solved
Message-ID: <alpine.BSF.2.20.1604091631030.91568@pe710.spaz.org>
Content-Type: text/plain; format=flowed; charset=US-ASCII
so i've been working on the black sudoroom vending machine (vending1):
https://sudoroom.org/wiki/hack-o-mat
which had previously been hacked by students at UC Berkeley (i think)
I believe it's a Snacktron like Emma and Ed's machine.
(unlike our brown vending machine which is a snackshop II)
pictures of their machine can be seen here:
http://spaz.org/~jake/pix/vend/
they had ripped out the original control unit, and wired it up with a
bunch of reed relays and an arduino. The motors of the vending machine
are wired as a grid of rows and columns, so the controller needs to be
able to enable a single row and column in order to power one product
motor.
But it also needs to be able to detect when the product motor has rotated
a full turn, and is back at the "home" position where it needs to stop.
There's a "home" sensor on the back of the motor, but the way it's wired
was a mystery for a while. Here's some pictures of the homing circuit:
http://spaz.org/~jake/pix/vend/IMG_20160401_015211.jpg
http://spaz.org/~jake/pix/vend/IMG_20160401_015700.jpg
as you can see, the only difference between the button being pressed or
not pressed, is that the 420nF capacitor is in parallel with the motor or
not. Since the whole thing is in series with a diode (to protect against
trying to turn a motor backwards) we were stumped as to how to detect
whether a motor was homed or not.
Thanks to Zach who donated some test equipment including this awesome
signal generator (along with a nice power supply and bench multimeter):
http://imgur.com/LTSFfOe
I was able to connect an AC waveform in series with a 12VDC supply to one
of the motors, and figure out how to detect whether the home switch is
closed or not. Basically, you make a 31KHz (or similar frequency)
squarewave in series with the power supply, and watch the current through
the motor. If the button is open and the capacitor is not in-circuit, the
motor's inductance absorbs the AC and the current draw is relatively
smooth. But when the motor arrives at the home position (when you need to
stop delivering product!) the capacitor gets switched in, and now you'll
see a lot of the AC on the current path of the system.
Here is a video showing the voltage across a 22-ohm series resistor while
the motor is rotating with 12VDC:
https://www.youtube.com/watch?v=xHIGDw5HRCg
apparently it takes that motor about 11 seconds to dispense a product and
finish returning to home position, assuming the product weighs nothing.
by the way, you'll notice that i'm using the old analog oscilloscope.
Unfortunately the LeCroy 9510 has started crashing, basically
bluescreening. It probably needs to be opened up and cleaned, as it got
wet after a fire before it was donated to sudoroom.
Or maybe someone wants to donate a nicer oscilloscope to sudoroom?
anyway, now I know how to detect the motor homing signal, and I just need
to wire up this machine to its arduino to detect the signal and dispense
product more accurately. If anyone wants to help, please let me know.
by the way, if you are wondering how the UC students detected when the
motors were finished dispensing product, the answer is absurd:
they put a laser beam across the path where product would fall when
dispensed, and they watched for the laser beam to be interrupted.
did it work? I don't know. probably the semester ended and they got
their grade and moved on, and then they donated the vending machine to us.
-jake
------------------------------
Message: 14
Date: Sat, 9 Apr 2016 16:34:40 -0700
From: Mitch Altman <maltman23@hotmail.com>
To: Jake Spaz <jake@spaz.org>, Sudo-Discuss
<sudo-discuss@lists.sudoroom.org>, Adam Munich
<adam@aperture.systems>, "Zach ." <organic_unity@yahoo.com>,
"emmaselephants33@gmail.com" <emmaselephants33@gmail.com>,
"echoudhry@gmail.com" <echoudhry@gmail.com>
Subject: Re: [sudo-discuss] vending machine homing switch mystery
solved
Message-ID: <BAY172-W1432581CBAC41C0D0BF22EB8920@phx.gbl>
Content-Type: text/plain; charset="iso-8859-1"
That is a bizarre way of detecting "home". Since there's a switch, wouldn't it be easier to just connect the switch directly to the Arduino to detect "home"?
-----------------
> Date: Sat, 9 Apr 2016 17:42:06 -0500
> From: jake@spaz.org
> To: sudo-discuss@lists.sudoroom.org; adam@aperture.systems; organic_unity@yahoo.com; emmaselephants33@gmail.com; echoudhry@gmail.com
> Subject: [sudo-discuss] vending machine homing switch mystery solved
>
> so i've been working on the black sudoroom vending machine (vending1):
>
> https://sudoroom.org/wiki/hack-o-mat
>
> which had previously been hacked by students at UC Berkeley (i think)
>
> I believe it's a Snacktron like Emma and Ed's machine.
> (unlike our brown vending machine which is a snackshop II)
> pictures of their machine can be seen here:
> http://spaz.org/~jake/pix/vend/
>
> they had ripped out the original control unit, and wired it up with a
> bunch of reed relays and an arduino. The motors of the vending machine
> are wired as a grid of rows and columns, so the controller needs to be
> able to enable a single row and column in order to power one product
> motor.
>
> But it also needs to be able to detect when the product motor has rotated
> a full turn, and is back at the "home" position where it needs to stop.
> There's a "home" sensor on the back of the motor, but the way it's wired
> was a mystery for a while. Here's some pictures of the homing circuit:
>
> http://spaz.org/~jake/pix/vend/IMG_20160401_015211.jpg
> http://spaz.org/~jake/pix/vend/IMG_20160401_015700.jpg
>
> as you can see, the only difference between the button being pressed or
> not pressed, is that the 420nF capacitor is in parallel with the motor or
> not. Since the whole thing is in series with a diode (to protect against
> trying to turn a motor backwards) we were stumped as to how to detect
> whether a motor was homed or not.
>
> Thanks to Zach who donated some test equipment including this awesome
> signal generator (along with a nice power supply and bench multimeter):
> http://imgur.com/LTSFfOe
>
> I was able to connect an AC waveform in series with a 12VDC supply to one
> of the motors, and figure out how to detect whether the home switch is
> closed or not. Basically, you make a 31KHz (or similar frequency)
> squarewave in series with the power supply, and watch the current through
> the motor. If the button is open and the capacitor is not in-circuit, the
> motor's inductance absorbs the AC and the current draw is relatively
> smooth. But when the motor arrives at the home position (when you need to
> stop delivering product!) the capacitor gets switched in, and now you'll
> see a lot of the AC on the current path of the system.
>
> Here is a video showing the voltage across a 22-ohm series resistor while
> the motor is rotating with 12VDC:
>
> https://www.youtube.com/watch?v=xHIGDw5HRCg
>
> apparently it takes that motor about 11 seconds to dispense a product and
> finish returning to home position, assuming the product weighs nothing.
>
> by the way, you'll notice that i'm using the old analog oscilloscope.
> Unfortunately the LeCroy 9510 has started crashing, basically
> bluescreening. It probably needs to be opened up and cleaned, as it got
> wet after a fire before it was donated to sudoroom.
>
> Or maybe someone wants to donate a nicer oscilloscope to sudoroom?
>
> anyway, now I know how to detect the motor homing signal, and I just need
> to wire up this machine to its arduino to detect the signal and dispense
> product more accurately. If anyone wants to help, please let me know.
>
> by the way, if you are wondering how the UC students detected when the
> motors were finished dispensing product, the answer is absurd:
>
> they put a laser beam across the path where product would fall when
> dispensed, and they watched for the laser beam to be interrupted.
>
> did it work? I don't know. probably the semester ended and they got
> their grade and moved on, and then they donated the vending machine to us.
>
> -jake
> _______________________________________________
> sudo-discuss mailing list
> sudo-discuss@lists.sudoroom.org
> https://sudoroom.org/lists/listinfo/sudo-discuss
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------------------------------
Message: 15
Date: Sat, 9 Apr 2016 16:53:13 -0700
From: Jenny Ryan <tunabananas@gmail.com>
To: Marc Juul <juul@labitat.dk>, "mesh@lists.sudoroom.org"
<mesh@lists.sudoroom.org>
Cc: sudo-discuss <sudo-discuss@lists.sudoroom.org>
Subject: Re: [sudo-discuss] Schedule change and update from last
meeting/hacknight and
Message-ID:
<CAF0yFe7-TYiPdtg3d4Y_A_8ytQsh1P4PbP=wo9k85HF6Ar=dNw@mail.gmail.com>
Content-Type: text/plain; charset="utf-8"
This was meant for the mesh list, cc'd!
Jenny
Help open a people-powered common space in Oakland, California!
https://omnicommons.org/donate
`~`~`~`~`~`~`~`~`~`~`~`~`~`~`~`~`~`~`
"Technology is the campfire around which we tell our stories."
-Laurie Anderson
"Storytelling reveals meaning without committing the error of defining it."
-Hannah Arendt
"To define is to kill. To suggest is to create."
-Stéphane Mallarmé
~`~`~`~`~`~`~`~`~`~`~`~`~`~`~`~`~`~`
On Fri, Apr 8, 2016 at 6:26 PM, Marc Juul <juul@labitat.dk> wrote:
> Unless someone complains I'm dropping the Thursday evening events for now.
>
> That means that we have one weekly meeting only: Tuesday at 7:30 pm.
>
> Last meeting I was planning to prototype a 12v power cable. A couple of
> new meshers showed up though. I'm sure these won't be people who show up
> once and then never again since one is already an active sudo'er and the
> other is a ccl'er. I ended up intro-ing them to the mesh. One of them
> should be able to tie intro existing mesh connections in west oakland but
> needed approval from housemates, the other person has a view of lake
> merritt and he took a home node and picostation extender back with him :)
>
> Next Tuesday I want to try to solder those cables and we need to design a
> sticker that annotates what each port on the home node is used for so we
> don't have to manually make little notes/stickers every time.
>
> --
> marc/juul
>
> _______________________________________________
> sudo-discuss mailing list
> sudo-discuss@lists.sudoroom.org
> https://sudoroom.org/lists/listinfo/sudo-discuss
>
>
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------------------------------
Message: 16
Date: Sat, 9 Apr 2016 18:57:16 -0500 (CDT)
From: Jake <jake@spaz.org>
To: Mitch Altman <maltman23@hotmail.com>
Cc: "echoudhry@gmail.com" <echoudhry@gmail.com>,
"emmaselephants33@gmail.com" <emmaselephants33@gmail.com>, "Zach ."
<organic_unity@yahoo.com>, Sudo-Discuss
<sudo-discuss@lists.sudoroom.org>
Subject: Re: [sudo-discuss] vending machine homing switch mystery
solved
Message-ID: <alpine.BSF.2.20.1604091852090.91568@pe710.spaz.org>
Content-Type: text/plain; charset="iso-8859-1"; Format="flowed"
mitch there are 42 motors, arranged in a row/column grid
this way there are no extra wires. you have to be able to detect the
"home" state of each product independantly!
the other vending machine, a "snackshop II" uses a totally different
system. AC power is wired to all the motors through their homing switch,
so they will automatically turn until they are at "home" position.
Then there is a single wire from each motor to the appropriate button on
the front of the vending machine, and when the meatbag presses the button
of the product they want, current flows through the money-counting circuit
(and through diodes corresponding to the 5-bit value of nickels to charge
for the product!) and if the mortal has paid for its food, the circuit is
closed and the motor runs despite its Home position - but only for long
enough for the motor to leave "home" and then the home switch runs the
motor until it gets home again - after the user has been served.
we use this charlieplexed optocoupled-triac board for that machine:
https://github.com/sudoroom/hackomat
-jake
On Sat, 9 Apr 2016, Mitch Altman wrote:
> That is a bizarre way of detecting "home". Since there's a switch, wouldn't it be easier to just connect the switch directly to the Arduino to detect "home"?
>
>
> -----------------
> > Date: Sat, 9 Apr 2016 17:42:06 -0500
> > From: jake@spaz.org
> > To: sudo-discuss@lists.sudoroom.org; adam@aperture.systems; organic_unity@yahoo.com; emmaselephants33@gmail.com; echoudhry@gmail.com
> > Subject: [sudo-discuss] vending machine homing switch mystery solved
> >
> > so i've been working on the black sudoroom vending machine (vending1):
> >
> > https://sudoroom.org/wiki/hack-o-mat
> >
> > which had previously been hacked by students at UC Berkeley (i think)
> >
> > I believe it's a Snacktron like Emma and Ed's machine.
> > (unlike our brown vending machine which is a snackshop II)
> > pictures of their machine can be seen here:
> > http://spaz.org/~jake/pix/vend/
> >
> > they had ripped out the original control unit, and wired it up with a
> > bunch of reed relays and an arduino. The motors of the vending machine
> > are wired as a grid of rows and columns, so the controller needs to be
> > able to enable a single row and column in order to power one product
> > motor.
> >
> > But it also needs to be able to detect when the product motor has rotated
> > a full turn, and is back at the "home" position where it needs to stop.
> > There's a "home" sensor on the back of the motor, but the way it's wired
> > was a mystery for a while. Here's some pictures of the homing circuit:
> >
> > http://spaz.org/~jake/pix/vend/IMG_20160401_015211.jpg
> > http://spaz.org/~jake/pix/vend/IMG_20160401_015700.jpg
> >
> > as you can see, the only difference between the button being pressed or
> > not pressed, is that the 420nF capacitor is in parallel with the motor or
> > not. Since the whole thing is in series with a diode (to protect against
> > trying to turn a motor backwards) we were stumped as to how to detect
> > whether a motor was homed or not.
> >
> > Thanks to Zach who donated some test equipment including this awesome
> > signal generator (along with a nice power supply and bench multimeter):
> > http://imgur.com/LTSFfOe
> >
> > I was able to connect an AC waveform in series with a 12VDC supply to one
> > of the motors, and figure out how to detect whether the home switch is
> > closed or not. Basically, you make a 31KHz (or similar frequency)
> > squarewave in series with the power supply, and watch the current through
> > the motor. If the button is open and the capacitor is not in-circuit, the
> > motor's inductance absorbs the AC and the current draw is relatively
> > smooth. But when the motor arrives at the home position (when you need to
> > stop delivering product!) the capacitor gets switched in, and now you'll
> > see a lot of the AC on the current path of the system.
> >
> > Here is a video showing the voltage across a 22-ohm series resistor while
> > the motor is rotating with 12VDC:
> >
> > https://www.youtube.com/watch?v=xHIGDw5HRCg
> >
> > apparently it takes that motor about 11 seconds to dispense a product and
> > finish returning to home position, assuming the product weighs nothing.
> >
> > by the way, you'll notice that i'm using the old analog oscilloscope.
> > Unfortunately the LeCroy 9510 has started crashing, basically
> > bluescreening. It probably needs to be opened up and cleaned, as it got
> > wet after a fire before it was donated to sudoroom.
> >
> > Or maybe someone wants to donate a nicer oscilloscope to sudoroom?
> >
> > anyway, now I know how to detect the motor homing signal, and I just need
> > to wire up this machine to its arduino to detect the signal and dispense
> > product more accurately. If anyone wants to help, please let me know.
> >
> > by the way, if you are wondering how the UC students detected when the
> > motors were finished dispensing product, the answer is absurd:
> >
> > they put a laser beam across the path where product would fall when
> > dispensed, and they watched for the laser beam to be interrupted.
> >
> > did it work? I don't know. probably the semester ended and they got
> > their grade and moved on, and then they donated the vending machine to us.
> >
> > -jake
> > _______________________________________________
> > sudo-discuss mailing list
> > sudo-discuss@lists.sudoroom.org
> > https://sudoroom.org/lists/listinfo/sudo-discuss
>
>
------------------------------
Message: 17
Date: Sun, 10 Apr 2016 03:34:02 -0700
From: Mitch Altman <maltman23@hotmail.com>
To: <jake@spaz.org>
Cc: echoudhry@gmail.com, emmaselephants33@gmail.com,
organic_unity@yahoo.com, sudo-discuss@lists.sudoroom.org
Subject: Re: [sudo-discuss] vending machine homing switch mystery
solved
Message-ID: <BAY172-W428E335356AFAF2218DC4AB8930@phx.gbl>
Content-Type: text/plain; charset="iso-8859-1"
Crazy design! I don't know if I could have figured that out. Cool that you did!
> Date: Sat, 9 Apr 2016 18:57:16 -0500
> From: jake@spaz.org
> To: maltman23@hotmail.com
> CC: sudo-discuss@lists.sudoroom.org; adam@aperture.systems; organic_unity@yahoo.com; emmaselephants33@gmail.com; echoudhry@gmail.com
> Subject: RE: [sudo-discuss] vending machine homing switch mystery solved
>
> mitch there are 42 motors, arranged in a row/column grid
>
> this way there are no extra wires. you have to be able to detect the
> "home" state of each product independantly!
>
> the other vending machine, a "snackshop II" uses a totally different
> system. AC power is wired to all the motors through their homing switch,
> so they will automatically turn until they are at "home" position.
>
> Then there is a single wire from each motor to the appropriate button on
> the front of the vending machine, and when the meatbag presses the button
> of the product they want, current flows through the money-counting circuit
> (and through diodes corresponding to the 5-bit value of nickels to charge
> for the product!) and if the mortal has paid for its food, the circuit is
> closed and the motor runs despite its Home position - but only for long
> enough for the motor to leave "home" and then the home switch runs the
> motor until it gets home again - after the user has been served.
>
> we use this charlieplexed optocoupled-triac board for that machine:
>
> https://github.com/sudoroom/hackomat
>
> -jake
>
> On Sat, 9 Apr 2016, Mitch Altman wrote:
>
> > That is a bizarre way of detecting "home". Since there's a switch, wouldn't it be easier to just connect the switch directly to the Arduino to detect "home"?
> >
> >
> > -----------------
> > > Date: Sat, 9 Apr 2016 17:42:06 -0500
> > > From: jake@spaz.org
> > > To: sudo-discuss@lists.sudoroom.org; adam@aperture.systems; organic_unity@yahoo.com; emmaselephants33@gmail.com; echoudhry@gmail.com
> > > Subject: [sudo-discuss] vending machine homing switch mystery solved
> > >
> > > so i've been working on the black sudoroom vending machine (vending1):
> > >
> > > https://sudoroom.org/wiki/hack-o-mat
> > >
> > > which had previously been hacked by students at UC Berkeley (i think)
> > >
> > > I believe it's a Snacktron like Emma and Ed's machine.
> > > (unlike our brown vending machine which is a snackshop II)
> > > pictures of their machine can be seen here:
> > > http://spaz.org/~jake/pix/vend/
> > >
> > > they had ripped out the original control unit, and wired it up with a
> > > bunch of reed relays and an arduino. The motors of the vending machine
> > > are wired as a grid of rows and columns, so the controller needs to be
> > > able to enable a single row and column in order to power one product
> > > motor.
> > >
> > > But it also needs to be able to detect when the product motor has rotated
> > > a full turn, and is back at the "home" position where it needs to stop.
> > > There's a "home" sensor on the back of the motor, but the way it's wired
> > > was a mystery for a while. Here's some pictures of the homing circuit:
> > >
> > > http://spaz.org/~jake/pix/vend/IMG_20160401_015211.jpg
> > > http://spaz.org/~jake/pix/vend/IMG_20160401_015700.jpg
> > >
> > > as you can see, the only difference between the button being pressed or
> > > not pressed, is that the 420nF capacitor is in parallel with the motor or
> > > not. Since the whole thing is in series with a diode (to protect against
> > > trying to turn a motor backwards) we were stumped as to how to detect
> > > whether a motor was homed or not.
> > >
> > > Thanks to Zach who donated some test equipment including this awesome
> > > signal generator (along with a nice power supply and bench multimeter):
> > > http://imgur.com/LTSFfOe
> > >
> > > I was able to connect an AC waveform in series with a 12VDC supply to one
> > > of the motors, and figure out how to detect whether the home switch is
> > > closed or not. Basically, you make a 31KHz (or similar frequency)
> > > squarewave in series with the power supply, and watch the current through
> > > the motor. If the button is open and the capacitor is not in-circuit, the
> > > motor's inductance absorbs the AC and the current draw is relatively
> > > smooth. But when the motor arrives at the home position (when you need to
> > > stop delivering product!) the capacitor gets switched in, and now you'll
> > > see a lot of the AC on the current path of the system.
> > >
> > > Here is a video showing the voltage across a 22-ohm series resistor while
> > > the motor is rotating with 12VDC:
> > >
> > > https://www.youtube.com/watch?v=xHIGDw5HRCg
> > >
> > > apparently it takes that motor about 11 seconds to dispense a product and
> > > finish returning to home position, assuming the product weighs nothing.
> > >
> > > by the way, you'll notice that i'm using the old analog oscilloscope.
> > > Unfortunately the LeCroy 9510 has started crashing, basically
> > > bluescreening. It probably needs to be opened up and cleaned, as it got
> > > wet after a fire before it was donated to sudoroom.
> > >
> > > Or maybe someone wants to donate a nicer oscilloscope to sudoroom?
> > >
> > > anyway, now I know how to detect the motor homing signal, and I just need
> > > to wire up this machine to its arduino to detect the signal and dispense
> > > product more accurately. If anyone wants to help, please let me know.
> > >
> > > by the way, if you are wondering how the UC students detected when the
> > > motors were finished dispensing product, the answer is absurd:
> > >
> > > they put a laser beam across the path where product would fall when
> > > dispensed, and they watched for the laser beam to be interrupted.
> > >
> > > did it work? I don't know. probably the semester ended and they got
> > > their grade and moved on, and then they donated the vending machine to us.
> > >
> > > -jake
> > > _______________________________________________
> > > sudo-discuss mailing list
> > > sudo-discuss@lists.sudoroom.org
> > > https://sudoroom.org/lists/listinfo/sudo-discuss
> >
> >
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