#robotics Logs

Mar 02 2015

00:54 rue_more its a microatx to 4-bay 5" drive bay mount
00:54 rue_more as apparently the board will fit in the side of the 4 bay external drive enclosure I have
00:58 rue_more maybe if I'm still awake at 11:30 I'll check
01:32 slidercrank http://www.youtube.com/watch?v=Sy2mGFSngJg automation!
01:36 rue_more http://www.thingiverse.com/thing:371248
01:36 rue_more THERE is a great printable
01:39 rue_more http://thingiverse-production-new.s3.amazonaws.com/renders/70/33/0b/39/36/CSC_2571_preview_featured.JPG
01:39 rue_more cool idea
01:41 rue_more http://www.thingiverse.com/thing:158131 perfect, my gundam is always falling over
02:11 rue_more well the print wasn't too pretty, but it worked!
02:11 rue_more the new jukebox's motherboard is mounted
04:12 deep_ Hi
04:13 deep_ I need a force sensor for measuring the force at various points beneath the foot while walking. What should I go for?
04:13 deep_ The sensor would be placed between the foot and the shoe that the person will be wearing.
08:44 rue_bed there are shoes like that
09:22 rue_more how about a linear distance measuring device that uses a spring
09:23 rue_more I suggest the spring be foam of some kind and the linear distance measuring device be a capacitive sensor
09:27 veverak rue_more: temperature sensitive
09:29 rue_more so compensate it
09:32 veverak yeah
09:32 veverak but it needs you need calibrated tmp sensor
09:32 veverak :)
09:33 rue_more no you dont cause you can calibrate it against itself
10:53 _TK_ Greetings to you!
10:54 deshipu who are you talking to?
10:58 _TK_ Actually You in general.
10:58 deshipu like Them, only more personal?
11:06 _TK_ Perhaps indeed could've also spoken in 3rd person plural :)
11:07 _TK_ like "Greetings to Them! ...the inventors!"
11:08 _TK_ If it's better that way, deshipu :)
11:14 deshipu I meant those Them that drive around in big black cars, wear shades and are responsible for all of this world's bad things
11:15 _TK_ Oh :D
11:15 veverak deshipu: you mean jehovas witnesses ?
11:16 deshipu veverak: some of my good friends are Jehova's witnesses and I have absolutely no problem with them
11:17 _TK_ Got mixed experiences.
11:18 _TK_ Perhaps it's more dependent on the people themselves and not just rel*gion.
11:18 veverak deshipu: I am speaking about general prejudicese
11:19 _TK_ ( ...even though some reli*ions might tend to attract certain types people at times )
11:21 _TK_ deshipu, ie You( with positive expectations ) in this channel.
11:21 deshipu veverak: yeah, I know it's a handy shortcut, but I also remember that people has been killed over making fun of religions
11:21 veverak deshipu: wait, you mean 2001?
11:21 veverak O:)
11:21 deshipu veverak: no, all the time
11:22 deshipu veverak: most recent loud case in Paris
11:22 verak can't say a thing againts reli
11:22 deshipu I'm non-practicing pastafarian
11:23 veverak but I just hate when people kill each other for religion/believes
11:23 veverak and can't stand that other people have different ones
11:23 deshipu killing each other generally sucks, irrespective of reason
11:23 veverak so, it just somehow happened in the proceses that I don't really like muslims :)
11:24 deshipu I don't like religion freaks, irrespective of religion
11:24 veverak yeah
11:24 veverak but sometimes
11:24 deshipu even if their beliefs align with mine
11:24 veverak you realize
11:24 veverak that the religion supporst such a behavior a lot
11:24 deshipu but most people, Muslims or Catholics, are not really very religious, which I think is fine
11:24 veverak so I believe that you can tell that the religiion itself than becames problem
11:25 veverak deshipu: there are people
11:25 veverak in the society
11:25 veverak that if you give them the right motivation
11:25 veverak they are able to do horrible things
11:25 veverak it's same like if you gave ape a gun...
11:25 deshipu veverak: I don't think so. You can see that in any religion, so my guess is that they would even make up their own, if there was nothing suitable available
11:25 veverak so, what is right? well, to not give the fucking apes a lot of guns
11:26 veverak deshipu: that's something I don't agree with :D
11:26 veverak deshipu: only small part of them are able to make something own
11:27 deshipu veverak: you see, no religion is better or worse than other, in this respect, as there are freaks in all of them
11:27 deshipu veverak: I think that religion is actually a kind of meme virus, and not all people develop immunity to it
11:27 veverak yeah
11:27 veverak freaks are in all of them
11:27 veverak but ratio is different
11:27 deshipu veverak: I was very religious at some point, and I think it's like being vaccinated
11:27 veverak and so is number of people believing in that religion
11:27 deshipu veverak: not really
11:28 deshipu veverak: the ratios are pretty much the same in my experience
11:28 deshipu of course, everybody has a different definition of what a "freak" is
11:28 veverak true to that
11:29 veverak well
11:29 veverak best solution for me, would be to estabilish law that if you want to visit some country
11:30 veverak you sign paper that tells: "I will respect customs in country I am going to, I will bring no harm to people not believing in my religion"
11:30 deshipu you do
11:30 deshipu it's implied
11:30 _TK_ Kil*ings aside, even treating other people with ignorance & arrogance as some( justified by religion among other things ) tend to, is bad enough.
11:30 deshipu also, religions don't align with countries
11:31 veverak _TK_: exactly
11:31 veverak :)
11:32 veverak deshipu: no, but it's country that kicks people out of some land
11:32 veverak paper itself is nothing
11:33 veverak but signed paper would mean that that country could legally kick you o if you won't respect that country customs/won't like that the country poeple doesn't like your religion"
11:33 veverak by won't like I mean something else than just opinion :)
11:35 deshipu veverak: they have those papers signed in bulk
11:36 deshipu veverak: in your name
11:36 deshipu veverak: by the abassadors
11:36 veverak wat?
11:36 veverak nice
11:36 deshipu veverak: that's why you can even visit those countries
11:37 deshipu and that's why for some of them you need a visa
11:37 deshipu which is basically this kind of document
11:38 _TK_ Btw is http://electronics-diy.com/usb-servo.php a reasonable way to control a servo via USB?
11:41 deshipu depending on the number of servos, I would just use attiny -- cheaper
11:41 deshipu hmm, or maybe
11:41 deshipu maybe not
11:42 deshipu hmm, $0.30 for attiny, vs. $0.42 for atmega8
11:43 deshipu _TK_: of course, you want to power the servo from a separate power source
11:43 deshipu usb only gives you 500mA normally
11:44 _TK_ I'll check out attiny and atmega8.
11:48 deshipu you would probably use the vusb library with attiny
11:50 deshipu _TK_: personally, if I didn't care about a 1$ difference, I would just use an arduino nano or pro micro, and control up to 12 servos with very simple sketch
11:51 deshipu they have hardware usb serial
11:51 deshipu and they are already assembled, so you don't need extra parts
11:51 deshipu maybe apart from a simple breakout board for the servos
11:52 deshipu that's what I actully do with my robots, except I use uart directly, not through usb
12:58 _TK_ deshipu, thank you for suggestions!
13:00 _TK_ They even seem to be available :)
13:03 _TK_ Some seem to have managed to get things going from a single smartphone power source.
13:22 _TK_ There also seems to be a "arduino micro" without 'pro'.
22:38 zhanx Rue, relay for a 5v coil, does it need a pull down resistor
22:38 orlock hey zhanx
22:38 orlock ltns
22:39 zhanx Lt in hospital
22:39 orlock oh damn
22:40 zhanx I am 6'3 now
22:40 orlock . .how tall were you before?
22:41 zhanx 6'5
22:41 orlock shit what happened?
22:41 zhanx Bad jump etc
22:41 orlock from a plane?
22:41 zhanx Yes
22:43 zhanx Orlock quick grounding a 710 ma 5v relay to engage it , resistor to ground or cap?
22:44 orlock Dunno - should be enough resistance through the coil to not need it?
22:45 zhanx Worries about brown outs. Might have to test
22:45 zhanx Trying for my first patent
23:02 Tom_itx zhanx probably not a pulldown but you need a diode across it for back emf
23:03 zhanx Tom _ itx field will test it
23:04 Tom_itx i've been messin a bit with relays a bit lately..
23:05 zhanx Parts will be here tomorrow
23:05 zhanx To bad for me I will be not doing that
23:05 Tom_itx been working on spindle control on the mill a little
23:06 zhanx Working on zone control
23:06 zhanx Havc
23:06 zhanx Havc *
23:07 zhanx Autocorrect hates me
23:09 Tom_itx or use optos
23:09 zhanx I should
23:09 Tom_itx probably better if you're working with mains
23:10 zhanx Just trying to keep the cost down
23:10 Tom_itx zone control of what?
23:10 Tom_itx hvac or lighting?
23:11 zhanx Hvac