<div dir="ltr"><div><div>for you, jake<br></div>for me, it's just begun<br></div>~r<br><div><div><div><div class="gmail_extra"><br><div class="gmail_quote">On Sun, Apr 10, 2016 at 3:34 AM, <span dir="ltr"><<a href="mailto:sudo-discuss-request@lists.sudoroom.org" target="_blank">sudo-discuss-request@lists.sudoroom.org</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Send sudo-discuss mailing list submissions to<br>
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Today's Topics:<br>
<br>
1. Re: Robogames (Patrik D'haeseleer)<br>
2. Re: oscilloscope, power supply, signal generator "donation" (Jake)<br>
3. Re: oscilloscope, power supply, signal generator "donation"<br>
(Anthony Di Franco)<br>
4. Re: oscilloscope, power supply, signal generator "donation" (Zach)<br>
5. Re: Robogames (Cere Misc)<br>
6. dell server racks? (robb)<br>
7. Re: dell server racks? (Jake)<br>
8. Re: dell server racks? (robb)<br>
9. Re: dell server racks? (Morgan Allen)<br>
10. Schedule change and update from last meeting/hacknight and<br>
(Marc Juul)<br>
11. Re: dell server racks? (<a href="mailto:danarauz@gmail.com">danarauz@gmail.com</a>)<br>
12. Re: dell server racks? (Marc Juul)<br>
13. vending machine homing switch mystery solved (Jake)<br>
14. Re: vending machine homing switch mystery solved (Mitch Altman)<br>
15. Re: Schedule change and update from last meeting/hacknight<br>
and (Jenny Ryan)<br>
16. Re: vending machine homing switch mystery solved (Jake)<br>
17. Re: vending machine homing switch mystery solved (Mitch Altman)<br>
<br>
<br>
----------------------------------------------------------------------<br>
<br>
Message: 1<br>
Date: Fri, 8 Apr 2016 00:19:17 -0700<br>
From: "Patrik D'haeseleer" <<a href="mailto:patrikd@gmail.com">patrikd@gmail.com</a>><br>
To: Tracy Jacobs <<a href="mailto:kinetical@comcast.net">kinetical@comcast.net</a>><br>
Cc: Sudo room <<a href="mailto:sudo-discuss@lists.sudoroom.org">sudo-discuss@lists.sudoroom.org</a>><br>
Subject: Re: [sudo-discuss] Robogames<br>
Message-ID:<br>
<<a href="mailto:CAKOjizPyC85-NLv35CUaoKaV8qiSWr7JjT7%2Bki3pucHCYhqeyA@mail.gmail.com">CAKOjizPyC85-NLv35CUaoKaV8qiSWr7JjT7+ki3pucHCYhqeyA@mail.gmail.com</a>><br>
Content-Type: text/plain; charset="utf-8"<br>
<br>
Yeah, both days are fun. You sometimes get some of the more spectacular<br>
displays of destruction on Saturday. And by Sunday, many of the bots have<br>
some amount of damage accumulated, or might be more focused on making it<br>
into the finals than on putting up a show.<br>
<br>
Either way, really entertaining both days. And some top-notch driving and<br>
engineering skills on display.<br>
<br>
Patrik<br>
<br>
On Thu, Apr 7, 2016 at 11:30 PM, Tracy Jacobs <<a href="mailto:kinetical@comcast.net">kinetical@comcast.net</a>> wrote:<br>
<br>
> Either one, it’s always good. You should go if you haven’t been! Tracy<br>
> On Apr 7, 2016, at 9:47 PM, Adam <adam@aperture.systems> wrote:<br>
><br>
> > I'm not sure what day is the best one to go. If it's structured like<br>
> > FRC matches, day 1 may not be too spectacular.<br>
> > - - - - Begin automatically generated footer - - - -<br>
> ><br>
> > Director of Research, Aperture Systems: <a href="http://aperture.systems" rel="noreferrer" target="_blank">http://aperture.systems</a><br>
> > Weblog: <a href="http://www.adammunich.com" rel="noreferrer" target="_blank">http://www.adammunich.com</a><br>
> > Cell: <a href="tel:%2B1-650-452-0554" value="+16504520554">+1-650-452-0554</a>, M-F 10a - 8p PST<br>
> ><br>
> > Note: To protect against computer viruses, e-mail programs may prevent<br>
> > sending or receiving certain types of file attachments. Check your<br>
> > e-mail security settings to determine how attachments are handled.<br>
> ><br>
> > Confidentiality Notice: This electronic mail transmission is intended<br>
> > for the use of the individual or entity to which it is addressed and<br>
> > may contain confidential and/or proprietary information belonging to<br>
> > the sender. If you are not the intended recipient, you are hereby<br>
> > notified that any disclosure, use, copying, distribution, or the<br>
> > taking of any action in reliance on the contents of this information<br>
> > is strictly prohibited. If you have received this transmission in<br>
> > error, please notify the sender immediately by e-mail and delete the<br>
> > original message. Thank you for your cooperation.<br>
> ><br>
> ><br>
> > On Thu, Apr 7, 2016 at 9:45 PM, Tracy Jacobs <<a href="mailto:kinetical@comcast.net">kinetical@comcast.net</a>><br>
> wrote:<br>
> >> Is it in Livermore this year?<br>
> >> I’d recommend it, I have been many times, normally as a participant.<br>
> They have a robotic art section of the competition too!<br>
> >><br>
> >> Tracy<br>
> >> On Apr 7, 2016, at 7:58 PM, Adam <adam@aperture.systems> wrote:<br>
> >><br>
> >>> Is this weekend in livermore.<br>
> >>><br>
> >>> I'm considering going. Tickets are $30/day, but it may be worth it to<br>
> >>> see robots get smashed and go through varied challenges.<br>
> >>><br>
> >>> Anyone else?<br>
> >>><br>
> >>><br>
> >>><br>
> >>> - - - - Begin automatically generated footer - - - -<br>
> >>><br>
> >>> Director of Research, Aperture Systems: <a href="http://aperture.systems" rel="noreferrer" target="_blank">http://aperture.systems</a><br>
> >>> Weblog: <a href="http://www.adammunich.com" rel="noreferrer" target="_blank">http://www.adammunich.com</a><br>
> >>> Cell: <a href="tel:%2B1-650-452-0554" value="+16504520554">+1-650-452-0554</a>, M-F 10a - 8p PST<br>
> >>><br>
> >>> Note: To protect against computer viruses, e-mail programs may prevent<br>
> >>> sending or receiving certain types of file attachments. Check your<br>
> >>> e-mail security settings to determine how attachments are handled.<br>
> >>><br>
> >>> Confidentiality Notice: This electronic mail transmission is intended<br>
> >>> for the use of the individual or entity to which it is addressed and<br>
> >>> may contain confidential and/or proprietary information belonging to<br>
> >>> the sender. If you are not the intended recipient, you are hereby<br>
> >>> notified that any disclosure, use, copying, distribution, or the<br>
> >>> taking of any action in reliance on the contents of this information<br>
> >>> is strictly prohibited. If you have received this transmission in<br>
> >>> error, please notify the sender immediately by e-mail and delete the<br>
> >>> original message. Thank you for your cooperation.<br>
> >>> _______________________________________________<br>
> >>> sudo-discuss mailing list<br>
> >>> <a href="mailto:sudo-discuss@lists.sudoroom.org">sudo-discuss@lists.sudoroom.org</a><br>
> >>> <a href="https://sudoroom.org/lists/listinfo/sudo-discuss" rel="noreferrer" target="_blank">https://sudoroom.org/lists/listinfo/sudo-discuss</a><br>
> >><br>
><br>
> _______________________________________________<br>
> sudo-discuss mailing list<br>
> <a href="mailto:sudo-discuss@lists.sudoroom.org">sudo-discuss@lists.sudoroom.org</a><br>
> <a href="https://sudoroom.org/lists/listinfo/sudo-discuss" rel="noreferrer" target="_blank">https://sudoroom.org/lists/listinfo/sudo-discuss</a><br>
><br>
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------------------------------<br>
<br>
Message: 2<br>
Date: Fri, 8 Apr 2016 14:24:43 -0500 (CDT)<br>
From: Jake <<a href="mailto:jake@spaz.org">jake@spaz.org</a>><br>
To: Anthony Di Franco <<a href="mailto:di.franco@gmail.com">di.franco@gmail.com</a>><br>
Cc: Zach T <<a href="mailto:organic_unity@yahoo.com">organic_unity@yahoo.com</a>>, <a href="mailto:sudo-discuss@lists.sudoroom.org">sudo-discuss@lists.sudoroom.org</a>,<br>
<a href="mailto:jacobmowbray@gmail.com">jacobmowbray@gmail.com</a><br>
Subject: Re: [sudo-discuss] oscilloscope, power supply, signal<br>
generator "donation"<br>
Message-ID: <<a href="mailto:alpine.BSF.2.20.1604081423340.91568@pe710.spaz.org">alpine.BSF.2.20.1604081423340.91568@pe710.spaz.org</a>><br>
Content-Type: text/plain; charset="utf-8"; Format="flowed"<br>
<br>
Thanks Anthony!<br>
<br>
Why not the oscilloscope? Not enough room? Perhaps Jacob can pick it up,<br>
I think he was going to pick it all up himself originally.<br>
<br>
That oscilloscope apparently has some 16-line digital analyzer built in,<br>
could be really awesome.<br>
<br>
-jake<br>
<br>
On Fri, 8 Apr 2016, Anthony Di Franco wrote:<br>
<br>
> I got everything except the oscilloscope,[IMAGE]<br>
><br>
> It's on the back bench.<br>
><br>
> On Thu, Apr 7, 2016, 13:53 Jake <<a href="mailto:jake@spaz.org">jake@spaz.org</a>> wrote:<br>
> Zach wants to donate these nice pieces of test equipment to sudoroom:<br>
><br>
> <a href="http://imgur.com/wZuPmi2" rel="noreferrer" target="_blank">http://imgur.com/wZuPmi2</a><br>
> <a href="http://imgur.com/LTSFfOe" rel="noreferrer" target="_blank">http://imgur.com/LTSFfOe</a><br>
> <a href="http://imgur.com/oQQsfgc" rel="noreferrer" target="_blank">http://imgur.com/oQQsfgc</a><br>
><br>
> and Jacob M. has volunteered to go pick them up (although he doesn't have<br>
> a car and they're in SF)<br>
><br>
> Does anyone with a car want to go to SF to pick them up?<br>
><br>
> but Zach wants to know that he can get them back whenever he wants.<br>
><br>
> Zach, Sudoroom can't guarantee the safety of your equipment that is left<br>
> there. But I can say that my LeCroy 9150 and Sorensen DCR-2025B and lots<br>
> of other good stuff are there and i'm not worried about them, and you<br>
> shouldn't worry either. If you ever need to come get these things back<br>
> you can do so. We appreciate you letting us use them in the meantime.<br>
><br>
> -jake<br>
> _______________________________________________<br>
> sudo-discuss mailing list<br>
> <a href="mailto:sudo-discuss@lists.sudoroom.org">sudo-discuss@lists.sudoroom.org</a><br>
> <a href="https://sudoroom.org/lists/listinfo/sudo-discuss" rel="noreferrer" target="_blank">https://sudoroom.org/lists/listinfo/sudo-discuss</a><br>
><br>
><br>
><br>
<br>
------------------------------<br>
<br>
Message: 3<br>
Date: Fri, 08 Apr 2016 19:43:11 +0000<br>
From: Anthony Di Franco <<a href="mailto:di.franco@gmail.com">di.franco@gmail.com</a>><br>
To: Jake <<a href="mailto:jake@spaz.org">jake@spaz.org</a>><br>
Cc: Zach T <<a href="mailto:organic_unity@yahoo.com">organic_unity@yahoo.com</a>>, <a href="mailto:sudo-discuss@lists.sudoroom.org">sudo-discuss@lists.sudoroom.org</a>,<br>
<a href="mailto:jacobmowbray@gmail.com">jacobmowbray@gmail.com</a><br>
Subject: Re: [sudo-discuss] oscilloscope, power supply, signal<br>
generator "donation"<br>
Message-ID:<br>
<<a href="mailto:CAOJkv1pSLETV_W9SmKYS5ztTMujvLYyMT7Op2QBMuRHMeh6bxQ@mail.gmail.com">CAOJkv1pSLETV_W9SmKYS5ztTMujvLYyMT7Op2QBMuRHMeh6bxQ@mail.gmail.com</a>><br>
Content-Type: text/plain; charset="utf-8"<br>
<br>
Indeed, no room this time. I could maybe grab it tonight if Jacob doesn't,<br>
but despite my XXL milk crates there are still size / fragility concerns.<br>
<br>
On Fri, Apr 8, 2016, 12:24 Jake <<a href="mailto:jake@spaz.org">jake@spaz.org</a>> wrote:<br>
<br>
> Thanks Anthony!<br>
><br>
> Why not the oscilloscope? Not enough room? Perhaps Jacob can pick it up,<br>
> I think he was going to pick it all up himself originally.<br>
><br>
> That oscilloscope apparently has some 16-line digital analyzer built in,<br>
> could be really awesome.<br>
><br>
> -jake<br>
><br>
> On Fri, 8 Apr 2016, Anthony Di Franco wrote:<br>
><br>
> > I got everything except the oscilloscope,[IMAGE]<br>
> ><br>
> > It's on the back bench.<br>
> ><br>
> > On Thu, Apr 7, 2016, 13:53 Jake <<a href="mailto:jake@spaz.org">jake@spaz.org</a>> wrote:<br>
> > Zach wants to donate these nice pieces of test equipment to<br>
> sudoroom:<br>
> ><br>
> > <a href="http://imgur.com/wZuPmi2" rel="noreferrer" target="_blank">http://imgur.com/wZuPmi2</a><br>
> > <a href="http://imgur.com/LTSFfOe" rel="noreferrer" target="_blank">http://imgur.com/LTSFfOe</a><br>
> > <a href="http://imgur.com/oQQsfgc" rel="noreferrer" target="_blank">http://imgur.com/oQQsfgc</a><br>
> ><br>
> > and Jacob M. has volunteered to go pick them up (although he<br>
> doesn't have<br>
> > a car and they're in SF)<br>
> ><br>
> > Does anyone with a car want to go to SF to pick them up?<br>
> ><br>
> > but Zach wants to know that he can get them back whenever he wants.<br>
> ><br>
> > Zach, Sudoroom can't guarantee the safety of your equipment that<br>
> is left<br>
> > there. But I can say that my LeCroy 9150 and Sorensen DCR-2025B<br>
> and lots<br>
> > of other good stuff are there and i'm not worried about them, and<br>
> you<br>
> > shouldn't worry either. If you ever need to come get these things<br>
> back<br>
> > you can do so. We appreciate you letting us use them in the<br>
> meantime.<br>
> ><br>
> > -jake<br>
> > _______________________________________________<br>
> > sudo-discuss mailing list<br>
> > <a href="mailto:sudo-discuss@lists.sudoroom.org">sudo-discuss@lists.sudoroom.org</a><br>
> > <a href="https://sudoroom.org/lists/listinfo/sudo-discuss" rel="noreferrer" target="_blank">https://sudoroom.org/lists/listinfo/sudo-discuss</a><br>
> ><br>
> ><br>
> ><br>
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<br>
Message: 4<br>
Date: Fri, 8 Apr 2016 19:44:43 +0000 (UTC)<br>
From: Zach <<a href="mailto:organic_unity@yahoo.com">organic_unity@yahoo.com</a>><br>
To: Anthony Di Franco <<a href="mailto:di.franco@gmail.com">di.franco@gmail.com</a>>, Jake <<a href="mailto:jake@spaz.org">jake@spaz.org</a>><br>
Cc: Zach T <<a href="mailto:organic_unity@yahoo.com">organic_unity@yahoo.com</a>>, <a href="mailto:sudo-discuss@lists.sudoroom.org">sudo-discuss@lists.sudoroom.org</a>,<br>
<a href="mailto:jacobmowbray@gmail.com">jacobmowbray@gmail.com</a><br>
Subject: Re: [sudo-discuss] oscilloscope, power supply, signal<br>
generator "donation"<br>
Message-ID:<br>
<<a href="mailto:2087650916.1910735.1460144684001.JavaMail.yahoo@mail.yahoo.com">2087650916.1910735.1460144684001.JavaMail.yahoo@mail.yahoo.com</a>><br>
Content-Type: text/plain; charset=UTF-8<br>
<br>
Im going to hold on to the scope for now. Have fun with the bench supply and other gear.<br>
-Zach<br>
--------------------------------------------<br>
On Fri, 4/8/16, Jake <<a href="mailto:jake@spaz.org">jake@spaz.org</a>> wrote:<br>
<br>
Subject: Re: [sudo-discuss] oscilloscope, power supply, signal generator "donation"<br>
To: "Anthony Di Franco" <<a href="mailto:di.franco@gmail.com">di.franco@gmail.com</a>><br>
Cc: <a href="mailto:sudo-discuss@lists.sudoroom.org">sudo-discuss@lists.sudoroom.org</a>, "Zach T" <<a href="mailto:organic_unity@yahoo.com">organic_unity@yahoo.com</a>>, <a href="mailto:jacobmowbray@gmail.com">jacobmowbray@gmail.com</a><br>
Date: Friday, April 8, 2016, 12:24 PM<br>
<br>
Thanks Anthony!<br>
<br>
Why not the oscilloscope? <br>
Not enough room? Perhaps Jacob can pick it up,<br>
I think he was going to pick it all up himself<br>
originally.<br>
<br>
That<br>
oscilloscope apparently has some 16-line digital analyzer<br>
built in,<br>
could be really awesome.<br>
<br>
-jake<br>
<br>
On Fri, 8 Apr 2016, Anthony Di Franco wrote:<br>
<br>
> I got everything except<br>
the oscilloscope,[IMAGE]<br>
><br>
><br>
It's on the back bench.<br>
><br>
> On Thu, Apr 7, 2016, 13:53 Jake <<a href="mailto:jake@spaz.org">jake@spaz.org</a>><br>
wrote:<br>
> Zach wants to<br>
donate these nice pieces of test equipment to sudoroom:<br>
><br>
> <a href="http://imgur.com/wZuPmi2" rel="noreferrer" target="_blank">http://imgur.com/wZuPmi2</a><br>
> <a href="http://imgur.com/LTSFfOe" rel="noreferrer" target="_blank">http://imgur.com/LTSFfOe</a><br>
> <a href="http://imgur.com/oQQsfgc" rel="noreferrer" target="_blank">http://imgur.com/oQQsfgc</a><br>
><br>
> <br>
and Jacob M. has volunteered to go pick them<br>
up (although he doesn't have<br>
> <br>
a car and they're in SF)<br>
><br>
> <br>
Does anyone with a car want to go to SF to<br>
pick them up?<br>
><br>
> <br>
but Zach wants to know that he can get them<br>
back whenever he wants.<br>
><br>
> Zach, Sudoroom<br>
can't guarantee the safety of your equipment that is<br>
left<br>
> there. But I<br>
can say that my LeCroy 9150 and Sorensen DCR-2025B and<br>
lots<br>
> of other good<br>
stuff are there and i'm not worried about them, and<br>
you<br>
> shouldn't<br>
worry either. If you ever need to come get these things<br>
back<br>
> you can do<br>
so. We appreciate you letting us use them in the<br>
meantime.<br>
><br>
> <br>
-jake<br>
> <br>
_______________________________________________<br>
> sudo-discuss mailing<br>
list<br>
> <a href="mailto:sudo-discuss@lists.sudoroom.org">sudo-discuss@lists.sudoroom.org</a><br>
> <a href="https://sudoroom.org/lists/listinfo/sudo-discuss" rel="noreferrer" target="_blank">https://sudoroom.org/lists/listinfo/sudo-discuss</a><br>
><br>
><br>
><br>
<br>
<br>
------------------------------<br>
<br>
Message: 5<br>
Date: Fri, 8 Apr 2016 13:31:16 -0700<br>
From: Cere Misc <<a href="mailto:cere.misc@gmail.com">cere.misc@gmail.com</a>><br>
To: "Patrik D'haeseleer" <<a href="mailto:patrikd@gmail.com">patrikd@gmail.com</a>><br>
Cc: Sudo room <<a href="mailto:sudo-discuss@lists.sudoroom.org">sudo-discuss@lists.sudoroom.org</a>><br>
Subject: Re: [sudo-discuss] Robogames<br>
Message-ID:<br>
<CAKtSE-tw3DPgD3FudEjSaw0PSg=NqG+GP2wW==ukX=<a href="mailto:zhT9b%2BfQ@mail.gmail.com">zhT9b+fQ@mail.gmail.com</a>><br>
Content-Type: text/plain; charset="utf-8"<br>
<br>
The stupid in me is really tempted to go to this given that it's actually<br>
possible to get there via mass transit.<br>
<br>
On Thu, Apr 7, 2016 at 10:04 PM, Patrik D'haeseleer <<a href="mailto:patrikd@gmail.com">patrikd@gmail.com</a>><br>
wrote:<br>
<br>
> It's at the Pleasanton fairgrounds this year. Always tons of fun, if you<br>
> enjoy watching heavy machines beat the crap out of each other :-)<br>
><br>
> Patrik<br>
><br>
> On Thu, Apr 7, 2016 at 9:45 PM, Tracy Jacobs <<a href="mailto:kinetical@comcast.net">kinetical@comcast.net</a>><br>
> wrote:<br>
><br>
>> Is it in Livermore this year?<br>
>> I’d recommend it, I have been many times, normally as a participant.<br>
>> They have a robotic art section of the competition too!<br>
>><br>
>> Tracy<br>
>> On Apr 7, 2016, at 7:58 PM, Adam <adam@aperture.systems> wrote:<br>
>><br>
>> > Is this weekend in livermore.<br>
>> ><br>
>> > I'm considering going. Tickets are $30/day, but it may be worth it to<br>
>> > see robots get smashed and go through varied challenges.<br>
>> ><br>
>> > Anyone else?<br>
>> ><br>
>> ><br>
>> ><br>
>> > - - - - Begin automatically generated footer - - - -<br>
>> ><br>
>> > Director of Research, Aperture Systems: <a href="http://aperture.systems" rel="noreferrer" target="_blank">http://aperture.systems</a><br>
>> > Weblog: <a href="http://www.adammunich.com" rel="noreferrer" target="_blank">http://www.adammunich.com</a><br>
>> > Cell: <a href="tel:%2B1-650-452-0554" value="+16504520554">+1-650-452-0554</a>, M-F 10a - 8p PST<br>
>> ><br>
>> > Note: To protect against computer viruses, e-mail programs may prevent<br>
>> > sending or receiving certain types of file attachments. Check your<br>
>> > e-mail security settings to determine how attachments are handled.<br>
>> ><br>
>> > Confidentiality Notice: This electronic mail transmission is intended<br>
>> > for the use of the individual or entity to which it is addressed and<br>
>> > may contain confidential and/or proprietary information belonging to<br>
>> > the sender. If you are not the intended recipient, you are hereby<br>
>> > notified that any disclosure, use, copying, distribution, or the<br>
>> > taking of any action in reliance on the contents of this information<br>
>> > is strictly prohibited. If you have received this transmission in<br>
>> > error, please notify the sender immediately by e-mail and delete the<br>
>> > original message. Thank you for your cooperation.<br>
>> > _______________________________________________<br>
>> > sudo-discuss mailing list<br>
>> > <a href="mailto:sudo-discuss@lists.sudoroom.org">sudo-discuss@lists.sudoroom.org</a><br>
>> > <a href="https://sudoroom.org/lists/listinfo/sudo-discuss" rel="noreferrer" target="_blank">https://sudoroom.org/lists/listinfo/sudo-discuss</a><br>
>><br>
>> _______________________________________________<br>
>> sudo-discuss mailing list<br>
>> <a href="mailto:sudo-discuss@lists.sudoroom.org">sudo-discuss@lists.sudoroom.org</a><br>
>> <a href="https://sudoroom.org/lists/listinfo/sudo-discuss" rel="noreferrer" target="_blank">https://sudoroom.org/lists/listinfo/sudo-discuss</a><br>
>><br>
><br>
><br>
> _______________________________________________<br>
> sudo-discuss mailing list<br>
> <a href="mailto:sudo-discuss@lists.sudoroom.org">sudo-discuss@lists.sudoroom.org</a><br>
> <a href="https://sudoroom.org/lists/listinfo/sudo-discuss" rel="noreferrer" target="_blank">https://sudoroom.org/lists/listinfo/sudo-discuss</a><br>
><br>
><br>
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Message: 6<br>
Date: Fri, 8 Apr 2016 16:23:17 -0700<br>
From: robb <<a href="mailto:sf99er@gmail.com">sf99er@gmail.com</a>><br>
To: Sudo-discuss <<a href="mailto:sudo-discuss@lists.sudoroom.org">sudo-discuss@lists.sudoroom.org</a>><br>
Subject: [sudo-discuss] dell server racks?<br>
Message-ID:<br>
<<a href="mailto:CAGwQJQBPEJmfeNuLJnkoATHyACrOYgpzcSHfm7Kk8NRJZvw0Bw@mail.gmail.com">CAGwQJQBPEJmfeNuLJnkoATHyACrOYgpzcSHfm7Kk8NRJZvw0Bw@mail.gmail.com</a>><br>
Content-Type: text/plain; charset="utf-8"<br>
<br>
guy came to sudo asking if we want any dell server racks.<br>
he. claims they are nicer than the ones we have.<br>
he has 10<br>
cheers<br>
~r<br>
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Message: 7<br>
Date: Fri, 8 Apr 2016 18:31:09 -0500 (CDT)<br>
From: Jake <<a href="mailto:jake@spaz.org">jake@spaz.org</a>><br>
To: robb <<a href="mailto:sf99er@gmail.com">sf99er@gmail.com</a>><br>
Cc: Sudo-discuss <<a href="mailto:sudo-discuss@lists.sudoroom.org">sudo-discuss@lists.sudoroom.org</a>><br>
Subject: Re: [sudo-discuss] dell server racks?<br>
Message-ID: <<a href="mailto:alpine.BSF.2.20.1604081830580.91568@pe710.spaz.org">alpine.BSF.2.20.1604081830580.91568@pe710.spaz.org</a>><br>
Content-Type: text/plain; charset=US-ASCII; format=flowed<br>
<br>
nooooooo<br>
<br>
On Fri, 8 Apr 2016, robb wrote:<br>
<br>
> guy came to sudo asking if we want any dell server racks.<br>
> he. claims they are nicer than the ones we have.<br>
> he has 10<br>
> cheers<br>
> ~r<br>
><br>
><br>
<br>
<br>
------------------------------<br>
<br>
Message: 8<br>
Date: Fri, 8 Apr 2016 16:41:46 -0700<br>
From: robb <<a href="mailto:sf99er@gmail.com">sf99er@gmail.com</a>><br>
To: Jake <<a href="mailto:jake@spaz.org">jake@spaz.org</a>><br>
Cc: Sudo-discuss <<a href="mailto:sudo-discuss@lists.sudoroom.org">sudo-discuss@lists.sudoroom.org</a>><br>
Subject: Re: [sudo-discuss] dell server racks?<br>
Message-ID:<br>
<<a href="mailto:CAGwQJQCD5nVH3%2BrT2DoPQUTCRMeOoRXfJAoMhZOBF4TmvN4muQ@mail.gmail.com">CAGwQJQCD5nVH3+rT2DoPQUTCRMeOoRXfJAoMhZOBF4TmvN4muQ@mail.gmail.com</a>><br>
Content-Type: text/plain; charset="utf-8"<br>
<br>
thx for the speedy response, jake!<br>
how many do we want?<br>
;)<br>
<br>
On Fri, Apr 8, 2016 at 4:31 PM, Jake <<a href="mailto:jake@spaz.org">jake@spaz.org</a>> wrote:<br>
<br>
> nooooooo<br>
><br>
><br>
> On Fri, 8 Apr 2016, robb wrote:<br>
><br>
> guy came to sudo asking if we want any dell server racks.<br>
>> he. claims they are nicer than the ones we have.<br>
>> he has 10<br>
>> cheers<br>
>> ~r<br>
>><br>
>><br>
>><br>
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<br>
Message: 9<br>
Date: Fri, 8 Apr 2016 17:48:31 -0700<br>
From: Morgan Allen <<a href="mailto:morganrallen@gmail.com">morganrallen@gmail.com</a>><br>
To: robb <<a href="mailto:sf99er@gmail.com">sf99er@gmail.com</a>><br>
Cc: Sudo-discuss <<a href="mailto:sudo-discuss@lists.sudoroom.org">sudo-discuss@lists.sudoroom.org</a>><br>
Subject: Re: [sudo-discuss] dell server racks?<br>
Message-ID:<br>
<<a href="mailto:CALArMGRSEbQsDxSTwQctHuBUHKmA8a%2BKc7HBwwqLjmWKJ3JzFw@mail.gmail.com">CALArMGRSEbQsDxSTwQctHuBUHKmA8a+Kc7HBwwqLjmWKJ3JzFw@mail.gmail.com</a>><br>
Content-Type: text/plain; charset="utf-8"<br>
<br>
Free after labor.<br>
<br>
On Fri, Apr 8, 2016 at 4:41 PM, robb <<a href="mailto:sf99er@gmail.com">sf99er@gmail.com</a>> wrote:<br>
<br>
> thx for the speedy response, jake!<br>
> how many do we want?<br>
> ;)<br>
><br>
> On Fri, Apr 8, 2016 at 4:31 PM, Jake <<a href="mailto:jake@spaz.org">jake@spaz.org</a>> wrote:<br>
><br>
>> nooooooo<br>
>><br>
>><br>
>> On Fri, 8 Apr 2016, robb wrote:<br>
>><br>
>> guy came to sudo asking if we want any dell server racks.<br>
>>> he. claims they are nicer than the ones we have.<br>
>>> he has 10<br>
>>> cheers<br>
>>> ~r<br>
>>><br>
>>><br>
>>><br>
><br>
> _______________________________________________<br>
> sudo-discuss mailing list<br>
> <a href="mailto:sudo-discuss@lists.sudoroom.org">sudo-discuss@lists.sudoroom.org</a><br>
> <a href="https://sudoroom.org/lists/listinfo/sudo-discuss" rel="noreferrer" target="_blank">https://sudoroom.org/lists/listinfo/sudo-discuss</a><br>
><br>
><br>
<br>
<br>
--<br>
<br>
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<br>
Message: 10<br>
Date: Fri, 8 Apr 2016 18:26:14 -0700<br>
From: Marc Juul <<a href="mailto:juul@labitat.dk">juul@labitat.dk</a>><br>
To: sudo-discuss <<a href="mailto:sudo-discuss@lists.sudoroom.org">sudo-discuss@lists.sudoroom.org</a>><br>
Subject: [sudo-discuss] Schedule change and update from last<br>
meeting/hacknight and<br>
Message-ID:<br>
<<a href="mailto:CAL4ejvQiz9-YZyx39kyAO%2BAVtmQJnBQ6UY-v-206qmwRghudMg@mail.gmail.com">CAL4ejvQiz9-YZyx39kyAO+AVtmQJnBQ6UY-v-206qmwRghudMg@mail.gmail.com</a>><br>
Content-Type: text/plain; charset="utf-8"<br>
<br>
Unless someone complains I'm dropping the Thursday evening events for now.<br>
<br>
That means that we have one weekly meeting only: Tuesday at 7:30 pm.<br>
<br>
Last meeting I was planning to prototype a 12v power cable. A couple of new<br>
meshers showed up though. I'm sure these won't be people who show up once<br>
and then never again since one is already an active sudo'er and the other<br>
is a ccl'er. I ended up intro-ing them to the mesh. One of them should be<br>
able to tie intro existing mesh connections in west oakland but needed<br>
approval from housemates, the other person has a view of lake merritt and<br>
he took a home node and picostation extender back with him :)<br>
<br>
Next Tuesday I want to try to solder those cables and we need to design a<br>
sticker that annotates what each port on the home node is used for so we<br>
don't have to manually make little notes/stickers every time.<br>
<br>
--<br>
marc/juul<br>
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<br>
Message: 11<br>
Date: Fri, 8 Apr 2016 19:40:22 -0700<br>
From: "<a href="mailto:danarauz@gmail.com">danarauz@gmail.com</a>" <<a href="mailto:danarauz@gmail.com">danarauz@gmail.com</a>><br>
To: Morgan Allen <<a href="mailto:morganrallen@gmail.com">morganrallen@gmail.com</a>><br>
Cc: robb <<a href="mailto:sf99er@gmail.com">sf99er@gmail.com</a>>, Sudo-discuss<br>
<<a href="mailto:sudo-discuss@lists.sudoroom.org">sudo-discuss@lists.sudoroom.org</a>><br>
Subject: Re: [sudo-discuss] dell server racks?<br>
Message-ID:<br>
<<a href="mailto:CAPMS6zY-w25r3JxpyYhBjUbcYdryTKK2yLki157CZxh6AwChuA@mail.gmail.com">CAPMS6zY-w25r3JxpyYhBjUbcYdryTKK2yLki157CZxh6AwChuA@mail.gmail.com</a>><br>
Content-Type: text/plain; charset="utf-8"<br>
<br>
Last time I checked the servers that were donated to sudo were low end<br>
servers and also had not rails. Then from a difference source, we got some<br>
rails to try out, but not sure how much luck are we going to have. -----So,<br>
perhaps wouldn't hurt to ask model is he wanting to donate.<br>
<br>
On Fri, Apr 8, 2016 at 5:48 PM, Morgan Allen <<a href="mailto:morganrallen@gmail.com">morganrallen@gmail.com</a>> wrote:<br>
<br>
> Free after labor.<br>
><br>
> On Fri, Apr 8, 2016 at 4:41 PM, robb <<a href="mailto:sf99er@gmail.com">sf99er@gmail.com</a>> wrote:<br>
><br>
>> thx for the speedy response, jake!<br>
>> how many do we want?<br>
>> ;)<br>
>><br>
>> On Fri, Apr 8, 2016 at 4:31 PM, Jake <<a href="mailto:jake@spaz.org">jake@spaz.org</a>> wrote:<br>
>><br>
>>> nooooooo<br>
>>><br>
>>><br>
>>> On Fri, 8 Apr 2016, robb wrote:<br>
>>><br>
>>> guy came to sudo asking if we want any dell server racks.<br>
>>>> he. claims they are nicer than the ones we have.<br>
>>>> he has 10<br>
>>>> cheers<br>
>>>> ~r<br>
>>>><br>
>>>><br>
>>>><br>
>><br>
>> _______________________________________________<br>
>> sudo-discuss mailing list<br>
>> <a href="mailto:sudo-discuss@lists.sudoroom.org">sudo-discuss@lists.sudoroom.org</a><br>
>> <a href="https://sudoroom.org/lists/listinfo/sudo-discuss" rel="noreferrer" target="_blank">https://sudoroom.org/lists/listinfo/sudo-discuss</a><br>
>><br>
>><br>
><br>
><br>
> --<br>
><br>
> -----BEGIN PGP PUBLIC KEY BLOCK-----<br>
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> -----END PGP PUBLIC KEY BLOCK-----<br>
><br>
> _______________________________________________<br>
> sudo-discuss mailing list<br>
> <a href="mailto:sudo-discuss@lists.sudoroom.org">sudo-discuss@lists.sudoroom.org</a><br>
> <a href="https://sudoroom.org/lists/listinfo/sudo-discuss" rel="noreferrer" target="_blank">https://sudoroom.org/lists/listinfo/sudo-discuss</a><br>
><br>
><br>
<br>
<br>
--<br>
<br>
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -<br>
- - - - - - - - - - - -<br>
Help open a people-powered common space in Oakland, California!<br>
<a href="https://omnicommons.org/donate" rel="noreferrer" target="_blank">https://omnicommons.org/donate</a><br>
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -<br>
- - - - - - - - - - - -<br>
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<br>
Message: 12<br>
Date: Fri, 8 Apr 2016 19:59:31 -0700<br>
From: Marc Juul <<a href="mailto:juul@labitat.dk">juul@labitat.dk</a>><br>
To: robb <<a href="mailto:sf99er@gmail.com">sf99er@gmail.com</a>><br>
Cc: Sudo-discuss <<a href="mailto:sudo-discuss@lists.sudoroom.org">sudo-discuss@lists.sudoroom.org</a>><br>
Subject: Re: [sudo-discuss] dell server racks?<br>
Message-ID:<br>
<CAL4ejvSJ59x9Rko+WFq15iqMfeOF1vAXMV3q+LsAnK6Ox=<a href="mailto:X-yA@mail.gmail.com">X-yA@mail.gmail.com</a>><br>
Content-Type: text/plain; charset="utf-8"<br>
<br>
On Friday, April 8, 2016, robb <<a href="mailto:sf99er@gmail.com">sf99er@gmail.com</a>> wrote:<br>
<br>
> thx for the speedy response, jake!<br>
> how many do we want?<br>
><br>
<br>
exactly 0<br>
<br>
<br>
><br>
> ;)<br>
><br>
> On Fri, Apr 8, 2016 at 4:31 PM, Jake <<a href="mailto:jake@spaz.org">jake@spaz.org</a><br>
> <javascript:_e(%7B%7D,'cvml','<a href="mailto:jake@spaz.org">jake@spaz.org</a>');>> wrote:<br>
><br>
>> nooooooo<br>
>><br>
>><br>
>> On Fri, 8 Apr 2016, robb wrote:<br>
>><br>
>> guy came to sudo asking if we want any dell server racks.<br>
>>> he. claims they are nicer than the ones we have.<br>
>>> he has 10<br>
>>> cheers<br>
>>> ~r<br>
>>><br>
>>><br>
>>><br>
><br>
:<br>
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<br>
Message: 13<br>
Date: Sat, 9 Apr 2016 17:42:06 -0500 (CDT)<br>
From: Jake <<a href="mailto:jake@spaz.org">jake@spaz.org</a>><br>
To: <a href="mailto:sudo-discuss@lists.sudoroom.org">sudo-discuss@lists.sudoroom.org</a>, Adam Munich<br>
<adam@aperture.systems>, Zach T <<a href="mailto:organic_unity@yahoo.com">organic_unity@yahoo.com</a>>,<br>
<a href="mailto:emmaselephants33@gmail.com">emmaselephants33@gmail.com</a>, <a href="mailto:echoudhry@gmail.com">echoudhry@gmail.com</a><br>
Subject: [sudo-discuss] vending machine homing switch mystery solved<br>
Message-ID: <<a href="mailto:alpine.BSF.2.20.1604091631030.91568@pe710.spaz.org">alpine.BSF.2.20.1604091631030.91568@pe710.spaz.org</a>><br>
Content-Type: text/plain; format=flowed; charset=US-ASCII<br>
<br>
so i've been working on the black sudoroom vending machine (vending1):<br>
<br>
<a href="https://sudoroom.org/wiki/hack-o-mat" rel="noreferrer" target="_blank">https://sudoroom.org/wiki/hack-o-mat</a><br>
<br>
which had previously been hacked by students at UC Berkeley (i think)<br>
<br>
I believe it's a Snacktron like Emma and Ed's machine.<br>
(unlike our brown vending machine which is a snackshop II)<br>
pictures of their machine can be seen here:<br>
<a href="http://spaz.org/~jake/pix/vend/" rel="noreferrer" target="_blank">http://spaz.org/~jake/pix/vend/</a><br>
<br>
they had ripped out the original control unit, and wired it up with a<br>
bunch of reed relays and an arduino. The motors of the vending machine<br>
are wired as a grid of rows and columns, so the controller needs to be<br>
able to enable a single row and column in order to power one product<br>
motor.<br>
<br>
But it also needs to be able to detect when the product motor has rotated<br>
a full turn, and is back at the "home" position where it needs to stop.<br>
There's a "home" sensor on the back of the motor, but the way it's wired<br>
was a mystery for a while. Here's some pictures of the homing circuit:<br>
<br>
<a href="http://spaz.org/~jake/pix/vend/IMG_20160401_015211.jpg" rel="noreferrer" target="_blank">http://spaz.org/~jake/pix/vend/IMG_20160401_015211.jpg</a><br>
<a href="http://spaz.org/~jake/pix/vend/IMG_20160401_015700.jpg" rel="noreferrer" target="_blank">http://spaz.org/~jake/pix/vend/IMG_20160401_015700.jpg</a><br>
<br>
as you can see, the only difference between the button being pressed or<br>
not pressed, is that the 420nF capacitor is in parallel with the motor or<br>
not. Since the whole thing is in series with a diode (to protect against<br>
trying to turn a motor backwards) we were stumped as to how to detect<br>
whether a motor was homed or not.<br>
<br>
Thanks to Zach who donated some test equipment including this awesome<br>
signal generator (along with a nice power supply and bench multimeter):<br>
<a href="http://imgur.com/LTSFfOe" rel="noreferrer" target="_blank">http://imgur.com/LTSFfOe</a><br>
<br>
I was able to connect an AC waveform in series with a 12VDC supply to one<br>
of the motors, and figure out how to detect whether the home switch is<br>
closed or not. Basically, you make a 31KHz (or similar frequency)<br>
squarewave in series with the power supply, and watch the current through<br>
the motor. If the button is open and the capacitor is not in-circuit, the<br>
motor's inductance absorbs the AC and the current draw is relatively<br>
smooth. But when the motor arrives at the home position (when you need to<br>
stop delivering product!) the capacitor gets switched in, and now you'll<br>
see a lot of the AC on the current path of the system.<br>
<br>
Here is a video showing the voltage across a 22-ohm series resistor while<br>
the motor is rotating with 12VDC:<br>
<br>
<a href="https://www.youtube.com/watch?v=xHIGDw5HRCg" rel="noreferrer" target="_blank">https://www.youtube.com/watch?v=xHIGDw5HRCg</a><br>
<br>
apparently it takes that motor about 11 seconds to dispense a product and<br>
finish returning to home position, assuming the product weighs nothing.<br>
<br>
by the way, you'll notice that i'm using the old analog oscilloscope.<br>
Unfortunately the LeCroy 9510 has started crashing, basically<br>
bluescreening. It probably needs to be opened up and cleaned, as it got<br>
wet after a fire before it was donated to sudoroom.<br>
<br>
Or maybe someone wants to donate a nicer oscilloscope to sudoroom?<br>
<br>
anyway, now I know how to detect the motor homing signal, and I just need<br>
to wire up this machine to its arduino to detect the signal and dispense<br>
product more accurately. If anyone wants to help, please let me know.<br>
<br>
by the way, if you are wondering how the UC students detected when the<br>
motors were finished dispensing product, the answer is absurd:<br>
<br>
they put a laser beam across the path where product would fall when<br>
dispensed, and they watched for the laser beam to be interrupted.<br>
<br>
did it work? I don't know. probably the semester ended and they got<br>
their grade and moved on, and then they donated the vending machine to us.<br>
<br>
-jake<br>
<br>
<br>
------------------------------<br>
<br>
Message: 14<br>
Date: Sat, 9 Apr 2016 16:34:40 -0700<br>
From: Mitch Altman <<a href="mailto:maltman23@hotmail.com">maltman23@hotmail.com</a>><br>
To: Jake Spaz <<a href="mailto:jake@spaz.org">jake@spaz.org</a>>, Sudo-Discuss<br>
<<a href="mailto:sudo-discuss@lists.sudoroom.org">sudo-discuss@lists.sudoroom.org</a>>, Adam Munich<br>
<adam@aperture.systems>, "Zach ." <<a href="mailto:organic_unity@yahoo.com">organic_unity@yahoo.com</a>>,<br>
"<a href="mailto:emmaselephants33@gmail.com">emmaselephants33@gmail.com</a>" <<a href="mailto:emmaselephants33@gmail.com">emmaselephants33@gmail.com</a>>,<br>
"<a href="mailto:echoudhry@gmail.com">echoudhry@gmail.com</a>" <<a href="mailto:echoudhry@gmail.com">echoudhry@gmail.com</a>><br>
Subject: Re: [sudo-discuss] vending machine homing switch mystery<br>
solved<br>
Message-ID: <BAY172-W1432581CBAC41C0D0BF22EB8920@phx.gbl><br>
Content-Type: text/plain; charset="iso-8859-1"<br>
<br>
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"?<br>
<br>
<br>
-----------------<br>
> Date: Sat, 9 Apr 2016 17:42:06 -0500<br>
> From: <a href="mailto:jake@spaz.org">jake@spaz.org</a><br>
> To: <a href="mailto:sudo-discuss@lists.sudoroom.org">sudo-discuss@lists.sudoroom.org</a>; adam@aperture.systems; <a href="mailto:organic_unity@yahoo.com">organic_unity@yahoo.com</a>; <a href="mailto:emmaselephants33@gmail.com">emmaselephants33@gmail.com</a>; <a href="mailto:echoudhry@gmail.com">echoudhry@gmail.com</a><br>
> Subject: [sudo-discuss] vending machine homing switch mystery solved<br>
><br>
> so i've been working on the black sudoroom vending machine (vending1):<br>
><br>
> <a href="https://sudoroom.org/wiki/hack-o-mat" rel="noreferrer" target="_blank">https://sudoroom.org/wiki/hack-o-mat</a><br>
><br>
> which had previously been hacked by students at UC Berkeley (i think)<br>
><br>
> I believe it's a Snacktron like Emma and Ed's machine.<br>
> (unlike our brown vending machine which is a snackshop II)<br>
> pictures of their machine can be seen here:<br>
> <a href="http://spaz.org/~jake/pix/vend/" rel="noreferrer" target="_blank">http://spaz.org/~jake/pix/vend/</a><br>
><br>
> they had ripped out the original control unit, and wired it up with a<br>
> bunch of reed relays and an arduino. The motors of the vending machine<br>
> are wired as a grid of rows and columns, so the controller needs to be<br>
> able to enable a single row and column in order to power one product<br>
> motor.<br>
><br>
> But it also needs to be able to detect when the product motor has rotated<br>
> a full turn, and is back at the "home" position where it needs to stop.<br>
> There's a "home" sensor on the back of the motor, but the way it's wired<br>
> was a mystery for a while. Here's some pictures of the homing circuit:<br>
><br>
> <a href="http://spaz.org/~jake/pix/vend/IMG_20160401_015211.jpg" rel="noreferrer" target="_blank">http://spaz.org/~jake/pix/vend/IMG_20160401_015211.jpg</a><br>
> <a href="http://spaz.org/~jake/pix/vend/IMG_20160401_015700.jpg" rel="noreferrer" target="_blank">http://spaz.org/~jake/pix/vend/IMG_20160401_015700.jpg</a><br>
><br>
> as you can see, the only difference between the button being pressed or<br>
> not pressed, is that the 420nF capacitor is in parallel with the motor or<br>
> not. Since the whole thing is in series with a diode (to protect against<br>
> trying to turn a motor backwards) we were stumped as to how to detect<br>
> whether a motor was homed or not.<br>
><br>
> Thanks to Zach who donated some test equipment including this awesome<br>
> signal generator (along with a nice power supply and bench multimeter):<br>
> <a href="http://imgur.com/LTSFfOe" rel="noreferrer" target="_blank">http://imgur.com/LTSFfOe</a><br>
><br>
> I was able to connect an AC waveform in series with a 12VDC supply to one<br>
> of the motors, and figure out how to detect whether the home switch is<br>
> closed or not. Basically, you make a 31KHz (or similar frequency)<br>
> squarewave in series with the power supply, and watch the current through<br>
> the motor. If the button is open and the capacitor is not in-circuit, the<br>
> motor's inductance absorbs the AC and the current draw is relatively<br>
> smooth. But when the motor arrives at the home position (when you need to<br>
> stop delivering product!) the capacitor gets switched in, and now you'll<br>
> see a lot of the AC on the current path of the system.<br>
><br>
> Here is a video showing the voltage across a 22-ohm series resistor while<br>
> the motor is rotating with 12VDC:<br>
><br>
> <a href="https://www.youtube.com/watch?v=xHIGDw5HRCg" rel="noreferrer" target="_blank">https://www.youtube.com/watch?v=xHIGDw5HRCg</a><br>
><br>
> apparently it takes that motor about 11 seconds to dispense a product and<br>
> finish returning to home position, assuming the product weighs nothing.<br>
><br>
> by the way, you'll notice that i'm using the old analog oscilloscope.<br>
> Unfortunately the LeCroy 9510 has started crashing, basically<br>
> bluescreening. It probably needs to be opened up and cleaned, as it got<br>
> wet after a fire before it was donated to sudoroom.<br>
><br>
> Or maybe someone wants to donate a nicer oscilloscope to sudoroom?<br>
><br>
> anyway, now I know how to detect the motor homing signal, and I just need<br>
> to wire up this machine to its arduino to detect the signal and dispense<br>
> product more accurately. If anyone wants to help, please let me know.<br>
><br>
> by the way, if you are wondering how the UC students detected when the<br>
> motors were finished dispensing product, the answer is absurd:<br>
><br>
> they put a laser beam across the path where product would fall when<br>
> dispensed, and they watched for the laser beam to be interrupted.<br>
><br>
> did it work? I don't know. probably the semester ended and they got<br>
> their grade and moved on, and then they donated the vending machine to us.<br>
><br>
> -jake<br>
> _______________________________________________<br>
> sudo-discuss mailing list<br>
> <a href="mailto:sudo-discuss@lists.sudoroom.org">sudo-discuss@lists.sudoroom.org</a><br>
> <a href="https://sudoroom.org/lists/listinfo/sudo-discuss" rel="noreferrer" target="_blank">https://sudoroom.org/lists/listinfo/sudo-discuss</a><br>
<br>
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<br>
Message: 15<br>
Date: Sat, 9 Apr 2016 16:53:13 -0700<br>
From: Jenny Ryan <<a href="mailto:tunabananas@gmail.com">tunabananas@gmail.com</a>><br>
To: Marc Juul <<a href="mailto:juul@labitat.dk">juul@labitat.dk</a>>, "<a href="mailto:mesh@lists.sudoroom.org">mesh@lists.sudoroom.org</a>"<br>
<<a href="mailto:mesh@lists.sudoroom.org">mesh@lists.sudoroom.org</a>><br>
Cc: sudo-discuss <<a href="mailto:sudo-discuss@lists.sudoroom.org">sudo-discuss@lists.sudoroom.org</a>><br>
Subject: Re: [sudo-discuss] Schedule change and update from last<br>
meeting/hacknight and<br>
Message-ID:<br>
<CAF0yFe7-TYiPdtg3d4Y_A_8ytQsh1P4PbP=wo9k85HF6Ar=<a href="mailto:dNw@mail.gmail.com">dNw@mail.gmail.com</a>><br>
Content-Type: text/plain; charset="utf-8"<br>
<br>
This was meant for the mesh list, cc'd!<br>
<br>
Jenny<br>
<br>
Help open a people-powered common space in Oakland, California!<br>
<a href="https://omnicommons.org/donate" rel="noreferrer" target="_blank">https://omnicommons.org/donate</a><br>
<br>
`~`~`~`~`~`~`~`~`~`~`~`~`~`~`~`~`~`~`<br>
"Technology is the campfire around which we tell our stories."<br>
-Laurie Anderson<br>
<br>
"Storytelling reveals meaning without committing the error of defining it."<br>
-Hannah Arendt<br>
<br>
"To define is to kill. To suggest is to create."<br>
-Stéphane Mallarmé<br>
~`~`~`~`~`~`~`~`~`~`~`~`~`~`~`~`~`~`<br>
<br>
On Fri, Apr 8, 2016 at 6:26 PM, Marc Juul <<a href="mailto:juul@labitat.dk">juul@labitat.dk</a>> wrote:<br>
<br>
> Unless someone complains I'm dropping the Thursday evening events for now.<br>
><br>
> That means that we have one weekly meeting only: Tuesday at 7:30 pm.<br>
><br>
> Last meeting I was planning to prototype a 12v power cable. A couple of<br>
> new meshers showed up though. I'm sure these won't be people who show up<br>
> once and then never again since one is already an active sudo'er and the<br>
> other is a ccl'er. I ended up intro-ing them to the mesh. One of them<br>
> should be able to tie intro existing mesh connections in west oakland but<br>
> needed approval from housemates, the other person has a view of lake<br>
> merritt and he took a home node and picostation extender back with him :)<br>
><br>
> Next Tuesday I want to try to solder those cables and we need to design a<br>
> sticker that annotates what each port on the home node is used for so we<br>
> don't have to manually make little notes/stickers every time.<br>
><br>
> --<br>
> marc/juul<br>
><br>
> _______________________________________________<br>
> sudo-discuss mailing list<br>
> <a href="mailto:sudo-discuss@lists.sudoroom.org">sudo-discuss@lists.sudoroom.org</a><br>
> <a href="https://sudoroom.org/lists/listinfo/sudo-discuss" rel="noreferrer" target="_blank">https://sudoroom.org/lists/listinfo/sudo-discuss</a><br>
><br>
><br>
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<br>
Message: 16<br>
Date: Sat, 9 Apr 2016 18:57:16 -0500 (CDT)<br>
From: Jake <<a href="mailto:jake@spaz.org">jake@spaz.org</a>><br>
To: Mitch Altman <<a href="mailto:maltman23@hotmail.com">maltman23@hotmail.com</a>><br>
Cc: "<a href="mailto:echoudhry@gmail.com">echoudhry@gmail.com</a>" <<a href="mailto:echoudhry@gmail.com">echoudhry@gmail.com</a>>,<br>
"<a href="mailto:emmaselephants33@gmail.com">emmaselephants33@gmail.com</a>" <<a href="mailto:emmaselephants33@gmail.com">emmaselephants33@gmail.com</a>>, "Zach ."<br>
<<a href="mailto:organic_unity@yahoo.com">organic_unity@yahoo.com</a>>, Sudo-Discuss<br>
<<a href="mailto:sudo-discuss@lists.sudoroom.org">sudo-discuss@lists.sudoroom.org</a>><br>
Subject: Re: [sudo-discuss] vending machine homing switch mystery<br>
solved<br>
Message-ID: <<a href="mailto:alpine.BSF.2.20.1604091852090.91568@pe710.spaz.org">alpine.BSF.2.20.1604091852090.91568@pe710.spaz.org</a>><br>
Content-Type: text/plain; charset="iso-8859-1"; Format="flowed"<br>
<br>
mitch there are 42 motors, arranged in a row/column grid<br>
<br>
this way there are no extra wires. you have to be able to detect the<br>
"home" state of each product independantly!<br>
<br>
the other vending machine, a "snackshop II" uses a totally different<br>
system. AC power is wired to all the motors through their homing switch,<br>
so they will automatically turn until they are at "home" position.<br>
<br>
Then there is a single wire from each motor to the appropriate button on<br>
the front of the vending machine, and when the meatbag presses the button<br>
of the product they want, current flows through the money-counting circuit<br>
(and through diodes corresponding to the 5-bit value of nickels to charge<br>
for the product!) and if the mortal has paid for its food, the circuit is<br>
closed and the motor runs despite its Home position - but only for long<br>
enough for the motor to leave "home" and then the home switch runs the<br>
motor until it gets home again - after the user has been served.<br>
<br>
we use this charlieplexed optocoupled-triac board for that machine:<br>
<br>
<a href="https://github.com/sudoroom/hackomat" rel="noreferrer" target="_blank">https://github.com/sudoroom/hackomat</a><br>
<br>
-jake<br>
<br>
On Sat, 9 Apr 2016, Mitch Altman wrote:<br>
<br>
> 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"?<br>
><br>
><br>
> -----------------<br>
> > Date: Sat, 9 Apr 2016 17:42:06 -0500<br>
> > From: <a href="mailto:jake@spaz.org">jake@spaz.org</a><br>
> > To: <a href="mailto:sudo-discuss@lists.sudoroom.org">sudo-discuss@lists.sudoroom.org</a>; adam@aperture.systems; <a href="mailto:organic_unity@yahoo.com">organic_unity@yahoo.com</a>; <a href="mailto:emmaselephants33@gmail.com">emmaselephants33@gmail.com</a>; <a href="mailto:echoudhry@gmail.com">echoudhry@gmail.com</a><br>
> > Subject: [sudo-discuss] vending machine homing switch mystery solved<br>
> ><br>
> > so i've been working on the black sudoroom vending machine (vending1):<br>
> ><br>
> > <a href="https://sudoroom.org/wiki/hack-o-mat" rel="noreferrer" target="_blank">https://sudoroom.org/wiki/hack-o-mat</a><br>
> ><br>
> > which had previously been hacked by students at UC Berkeley (i think)<br>
> ><br>
> > I believe it's a Snacktron like Emma and Ed's machine.<br>
> > (unlike our brown vending machine which is a snackshop II)<br>
> > pictures of their machine can be seen here:<br>
> > <a href="http://spaz.org/~jake/pix/vend/" rel="noreferrer" target="_blank">http://spaz.org/~jake/pix/vend/</a><br>
> ><br>
> > they had ripped out the original control unit, and wired it up with a<br>
> > bunch of reed relays and an arduino. The motors of the vending machine<br>
> > are wired as a grid of rows and columns, so the controller needs to be<br>
> > able to enable a single row and column in order to power one product<br>
> > motor.<br>
> ><br>
> > But it also needs to be able to detect when the product motor has rotated<br>
> > a full turn, and is back at the "home" position where it needs to stop.<br>
> > There's a "home" sensor on the back of the motor, but the way it's wired<br>
> > was a mystery for a while. Here's some pictures of the homing circuit:<br>
> ><br>
> > <a href="http://spaz.org/~jake/pix/vend/IMG_20160401_015211.jpg" rel="noreferrer" target="_blank">http://spaz.org/~jake/pix/vend/IMG_20160401_015211.jpg</a><br>
> > <a href="http://spaz.org/~jake/pix/vend/IMG_20160401_015700.jpg" rel="noreferrer" target="_blank">http://spaz.org/~jake/pix/vend/IMG_20160401_015700.jpg</a><br>
> ><br>
> > as you can see, the only difference between the button being pressed or<br>
> > not pressed, is that the 420nF capacitor is in parallel with the motor or<br>
> > not. Since the whole thing is in series with a diode (to protect against<br>
> > trying to turn a motor backwards) we were stumped as to how to detect<br>
> > whether a motor was homed or not.<br>
> ><br>
> > Thanks to Zach who donated some test equipment including this awesome<br>
> > signal generator (along with a nice power supply and bench multimeter):<br>
> > <a href="http://imgur.com/LTSFfOe" rel="noreferrer" target="_blank">http://imgur.com/LTSFfOe</a><br>
> ><br>
> > I was able to connect an AC waveform in series with a 12VDC supply to one<br>
> > of the motors, and figure out how to detect whether the home switch is<br>
> > closed or not. Basically, you make a 31KHz (or similar frequency)<br>
> > squarewave in series with the power supply, and watch the current through<br>
> > the motor. If the button is open and the capacitor is not in-circuit, the<br>
> > motor's inductance absorbs the AC and the current draw is relatively<br>
> > smooth. But when the motor arrives at the home position (when you need to<br>
> > stop delivering product!) the capacitor gets switched in, and now you'll<br>
> > see a lot of the AC on the current path of the system.<br>
> ><br>
> > Here is a video showing the voltage across a 22-ohm series resistor while<br>
> > the motor is rotating with 12VDC:<br>
> ><br>
> > <a href="https://www.youtube.com/watch?v=xHIGDw5HRCg" rel="noreferrer" target="_blank">https://www.youtube.com/watch?v=xHIGDw5HRCg</a><br>
> ><br>
> > apparently it takes that motor about 11 seconds to dispense a product and<br>
> > finish returning to home position, assuming the product weighs nothing.<br>
> ><br>
> > by the way, you'll notice that i'm using the old analog oscilloscope.<br>
> > Unfortunately the LeCroy 9510 has started crashing, basically<br>
> > bluescreening. It probably needs to be opened up and cleaned, as it got<br>
> > wet after a fire before it was donated to sudoroom.<br>
> ><br>
> > Or maybe someone wants to donate a nicer oscilloscope to sudoroom?<br>
> ><br>
> > anyway, now I know how to detect the motor homing signal, and I just need<br>
> > to wire up this machine to its arduino to detect the signal and dispense<br>
> > product more accurately. If anyone wants to help, please let me know.<br>
> ><br>
> > by the way, if you are wondering how the UC students detected when the<br>
> > motors were finished dispensing product, the answer is absurd:<br>
> ><br>
> > they put a laser beam across the path where product would fall when<br>
> > dispensed, and they watched for the laser beam to be interrupted.<br>
> ><br>
> > did it work? I don't know. probably the semester ended and they got<br>
> > their grade and moved on, and then they donated the vending machine to us.<br>
> ><br>
> > -jake<br>
> > _______________________________________________<br>
> > sudo-discuss mailing list<br>
> > <a href="mailto:sudo-discuss@lists.sudoroom.org">sudo-discuss@lists.sudoroom.org</a><br>
> > <a href="https://sudoroom.org/lists/listinfo/sudo-discuss" rel="noreferrer" target="_blank">https://sudoroom.org/lists/listinfo/sudo-discuss</a><br>
><br>
><br>
<br>
------------------------------<br>
<br>
Message: 17<br>
Date: Sun, 10 Apr 2016 03:34:02 -0700<br>
From: Mitch Altman <<a href="mailto:maltman23@hotmail.com">maltman23@hotmail.com</a>><br>
To: <<a href="mailto:jake@spaz.org">jake@spaz.org</a>><br>
Cc: <a href="mailto:echoudhry@gmail.com">echoudhry@gmail.com</a>, <a href="mailto:emmaselephants33@gmail.com">emmaselephants33@gmail.com</a>,<br>
<a href="mailto:organic_unity@yahoo.com">organic_unity@yahoo.com</a>, <a href="mailto:sudo-discuss@lists.sudoroom.org">sudo-discuss@lists.sudoroom.org</a><br>
Subject: Re: [sudo-discuss] vending machine homing switch mystery<br>
solved<br>
Message-ID: <BAY172-W428E335356AFAF2218DC4AB8930@phx.gbl><br>
Content-Type: text/plain; charset="iso-8859-1"<br>
<br>
Crazy design! I don't know if I could have figured that out. Cool that you did!<br>
<br>
> Date: Sat, 9 Apr 2016 18:57:16 -0500<br>
> From: <a href="mailto:jake@spaz.org">jake@spaz.org</a><br>
> To: <a href="mailto:maltman23@hotmail.com">maltman23@hotmail.com</a><br>
> CC: <a href="mailto:sudo-discuss@lists.sudoroom.org">sudo-discuss@lists.sudoroom.org</a>; adam@aperture.systems; <a href="mailto:organic_unity@yahoo.com">organic_unity@yahoo.com</a>; <a href="mailto:emmaselephants33@gmail.com">emmaselephants33@gmail.com</a>; <a href="mailto:echoudhry@gmail.com">echoudhry@gmail.com</a><br>
> Subject: RE: [sudo-discuss] vending machine homing switch mystery solved<br>
><br>
> mitch there are 42 motors, arranged in a row/column grid<br>
><br>
> this way there are no extra wires. you have to be able to detect the<br>
> "home" state of each product independantly!<br>
><br>
> the other vending machine, a "snackshop II" uses a totally different<br>
> system. AC power is wired to all the motors through their homing switch,<br>
> so they will automatically turn until they are at "home" position.<br>
><br>
> Then there is a single wire from each motor to the appropriate button on<br>
> the front of the vending machine, and when the meatbag presses the button<br>
> of the product they want, current flows through the money-counting circuit<br>
> (and through diodes corresponding to the 5-bit value of nickels to charge<br>
> for the product!) and if the mortal has paid for its food, the circuit is<br>
> closed and the motor runs despite its Home position - but only for long<br>
> enough for the motor to leave "home" and then the home switch runs the<br>
> motor until it gets home again - after the user has been served.<br>
><br>
> we use this charlieplexed optocoupled-triac board for that machine:<br>
><br>
> <a href="https://github.com/sudoroom/hackomat" rel="noreferrer" target="_blank">https://github.com/sudoroom/hackomat</a><br>
><br>
> -jake<br>
><br>
> On Sat, 9 Apr 2016, Mitch Altman wrote:<br>
><br>
> > 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"?<br>
> ><br>
> ><br>
> > -----------------<br>
> > > Date: Sat, 9 Apr 2016 17:42:06 -0500<br>
> > > From: <a href="mailto:jake@spaz.org">jake@spaz.org</a><br>
> > > To: <a href="mailto:sudo-discuss@lists.sudoroom.org">sudo-discuss@lists.sudoroom.org</a>; adam@aperture.systems; <a href="mailto:organic_unity@yahoo.com">organic_unity@yahoo.com</a>; <a href="mailto:emmaselephants33@gmail.com">emmaselephants33@gmail.com</a>; <a href="mailto:echoudhry@gmail.com">echoudhry@gmail.com</a><br>
> > > Subject: [sudo-discuss] vending machine homing switch mystery solved<br>
> > ><br>
> > > so i've been working on the black sudoroom vending machine (vending1):<br>
> > ><br>
> > > <a href="https://sudoroom.org/wiki/hack-o-mat" rel="noreferrer" target="_blank">https://sudoroom.org/wiki/hack-o-mat</a><br>
> > ><br>
> > > which had previously been hacked by students at UC Berkeley (i think)<br>
> > ><br>
> > > I believe it's a Snacktron like Emma and Ed's machine.<br>
> > > (unlike our brown vending machine which is a snackshop II)<br>
> > > pictures of their machine can be seen here:<br>
> > > <a href="http://spaz.org/~jake/pix/vend/" rel="noreferrer" target="_blank">http://spaz.org/~jake/pix/vend/</a><br>
> > ><br>
> > > they had ripped out the original control unit, and wired it up with a<br>
> > > bunch of reed relays and an arduino. The motors of the vending machine<br>
> > > are wired as a grid of rows and columns, so the controller needs to be<br>
> > > able to enable a single row and column in order to power one product<br>
> > > motor.<br>
> > ><br>
> > > But it also needs to be able to detect when the product motor has rotated<br>
> > > a full turn, and is back at the "home" position where it needs to stop.<br>
> > > There's a "home" sensor on the back of the motor, but the way it's wired<br>
> > > was a mystery for a while. Here's some pictures of the homing circuit:<br>
> > ><br>
> > > <a href="http://spaz.org/~jake/pix/vend/IMG_20160401_015211.jpg" rel="noreferrer" target="_blank">http://spaz.org/~jake/pix/vend/IMG_20160401_015211.jpg</a><br>
> > > <a href="http://spaz.org/~jake/pix/vend/IMG_20160401_015700.jpg" rel="noreferrer" target="_blank">http://spaz.org/~jake/pix/vend/IMG_20160401_015700.jpg</a><br>
> > ><br>
> > > as you can see, the only difference between the button being pressed or<br>
> > > not pressed, is that the 420nF capacitor is in parallel with the motor or<br>
> > > not. Since the whole thing is in series with a diode (to protect against<br>
> > > trying to turn a motor backwards) we were stumped as to how to detect<br>
> > > whether a motor was homed or not.<br>
> > ><br>
> > > Thanks to Zach who donated some test equipment including this awesome<br>
> > > signal generator (along with a nice power supply and bench multimeter):<br>
> > > <a href="http://imgur.com/LTSFfOe" rel="noreferrer" target="_blank">http://imgur.com/LTSFfOe</a><br>
> > ><br>
> > > I was able to connect an AC waveform in series with a 12VDC supply to one<br>
> > > of the motors, and figure out how to detect whether the home switch is<br>
> > > closed or not. Basically, you make a 31KHz (or similar frequency)<br>
> > > squarewave in series with the power supply, and watch the current through<br>
> > > the motor. If the button is open and the capacitor is not in-circuit, the<br>
> > > motor's inductance absorbs the AC and the current draw is relatively<br>
> > > smooth. But when the motor arrives at the home position (when you need to<br>
> > > stop delivering product!) the capacitor gets switched in, and now you'll<br>
> > > see a lot of the AC on the current path of the system.<br>
> > ><br>
> > > Here is a video showing the voltage across a 22-ohm series resistor while<br>
> > > the motor is rotating with 12VDC:<br>
> > ><br>
> > > <a href="https://www.youtube.com/watch?v=xHIGDw5HRCg" rel="noreferrer" target="_blank">https://www.youtube.com/watch?v=xHIGDw5HRCg</a><br>
> > ><br>
> > > apparently it takes that motor about 11 seconds to dispense a product and<br>
> > > finish returning to home position, assuming the product weighs nothing.<br>
> > ><br>
> > > by the way, you'll notice that i'm using the old analog oscilloscope.<br>
> > > Unfortunately the LeCroy 9510 has started crashing, basically<br>
> > > bluescreening. It probably needs to be opened up and cleaned, as it got<br>
> > > wet after a fire before it was donated to sudoroom.<br>
> > ><br>
> > > Or maybe someone wants to donate a nicer oscilloscope to sudoroom?<br>
> > ><br>
> > > anyway, now I know how to detect the motor homing signal, and I just need<br>
> > > to wire up this machine to its arduino to detect the signal and dispense<br>
> > > product more accurately. If anyone wants to help, please let me know.<br>
> > ><br>
> > > by the way, if you are wondering how the UC students detected when the<br>
> > > motors were finished dispensing product, the answer is absurd:<br>
> > ><br>
> > > they put a laser beam across the path where product would fall when<br>
> > > dispensed, and they watched for the laser beam to be interrupted.<br>
> > ><br>
> > > did it work? I don't know. probably the semester ended and they got<br>
> > > their grade and moved on, and then they donated the vending machine to us.<br>
> > ><br>
> > > -jake<br>
> > > _______________________________________________<br>
> > > sudo-discuss mailing list<br>
> > > <a href="mailto:sudo-discuss@lists.sudoroom.org">sudo-discuss@lists.sudoroom.org</a><br>
> > > <a href="https://sudoroom.org/lists/listinfo/sudo-discuss" rel="noreferrer" target="_blank">https://sudoroom.org/lists/listinfo/sudo-discuss</a><br>
> ><br>
> ><br>
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