#robotics Logs

Oct 11 2013

00:06 useless-afk it took only 200 pages of charts and cross references for them to explain it. I think i could have easily printed the ABT on that package, and saved everyone a lot of trouble.
00:07 useless-afk i have TSSOP with the full name printed on the package, but some time or other, someone got a burr up their butt to make things complicated, so they did
00:08 theBear heh, wait till yer get to tiny 1*2mm transistors and fets, they all look the same, there's 1000s of different p/ns, and at best they might print 3 or 4 non-unique digits on there :)
00:11 useless-afk oh, i know those, Tiggr has lots of those codes
00:12 useless-afk what is confusing is TI made ABT245's, and AHC245's, and i have TI chips labled ABT16245 , but TI didn't make AH245's
00:13 useless-afk i can see this change : SN74LVCHR162*** LVCHR162*** LR2***
00:14 useless-afk but as you can see in http://designerthinking.com/images/DSCF3606.jpg , there's plenty of room to print out ABT16245 on that chip
00:14 useless-afk SN74ALVCHR162*** ALVCHR162*** VR2***
00:15 useless-afk heck, i was happy to see the original 74162 come out, without all the alphabet soup on it
00:15 useless-afk SN74CBTLV16*** CBTLV16*** CN***
00:16 useless-afk but then SN74LVCHR162*** would be like SN74LVCHR162574DGG if all spelled out
00:17 useless-afk man, this pdf is a find and a half
00:18 useless-afk now, i just need someone to glue an ENC28J60 to an ATTiny2313
00:20 useless-afk Example: A Microgate logic device with package code A00x is an SN74AHC1G00DBV.
00:25 theBear i could do that for you... don't see the use in it tho, something that small i'll probly do a messy job with the glue and all :)
00:25 theBear heh, the magic translator, very nice
00:27 useless-afk but with only two small cheap chips, you'd have a low power http server in the space smaller than your thumb, you could put them in anything to get remote data from it
00:28 useless-afk no need to buy a whole arduino or Atmega128 or stm32f4
00:28 theBear meh, you can get that with wifi inside a working sdcard for about 30 bucks these days
00:29 useless-afk with ADC inputs and digital inputs, and timers, and such?
00:29 theBear http://haxit.blogspot.ch/2013/08/hacking-transcend-wifi-sd-cards.html
00:29 theBear well maybe technically, but it's probably a bit tricky to attach things to a chip you never seen
00:29 useless-afk right
00:30 theBear while we at it, you know you can only fit a VERY limited kinda webserver into a avr, specially a smaller one like 2313
00:31 useless-afk afaik, all it hasto do is shuffle the page to the ENC28J60, and i am talking under 512 bytes here
00:32 theBear i suppose if yer doing simple static stuff, or even 'better' just non-html/page kinda data via http
00:33 useless-afk right, something a simple wget fetch can retrieve and store as a data log
00:33 theBear i never worked a en28j60 from scratch myself, but i assume you just tell it to dhcp or what address/mask/etc to use, and after that simple text-like data (telnet/html/smtp etc) should be trivial to get onto the wire like you say
00:33 useless-afk like, "oh lookie, at 2:34am is when the new gadget blew up and the psu killed power to it"
00:34 theBear depending what you doing you might go even simpler and just blast raw info out there telnet style, heck, even broadcast if yerin the mood, then catch it with netcat or ethereal (err, wireshark?) or something
00:35 useless-afk no, i think i better stick to basic protocols on this idea, something anyone on any OS on any puter on the lan/internet can get the data in any browser
00:35 theBear remember also that you can always connect a little sd socket to the avr and either write data treating the sd as a raw chunk of memory (no fs/bullshit to worry about, just log to it byte by byte like you would an eeprom) then pull that out with a real pc/cardreader if/when you need it, or even get fancy and squeeze a basic fat-understander in there and write data to real files just like a real computer
00:36 useless-afk ideally, i'd want to send commands in the http fetch header too, either as a POST , in the GET string, or in a <meta > tag
00:36 useless-afk the memory card isn't live tho, it relies on sneakernet
00:37 theBear sneakernet ? not live ? whaddyou talking about ?
00:37 useless-afk logging to a sd card isn't making it available to a program running on a puter across the room in real time as it happens
00:38 theBear gotcha !
00:38 useless-afk i'd haveto put on sneakers, run over and grabt e card, bring it back, analyse it, run back and swap sd cards, run back and ....
00:38 theBear tho on the flipside, if all the computers across the room/building die for some reason, your sdcard will be the only thing that knows what REALLY happens :)
00:39 useless-afk i didn't say the device could not also log locally and dump on command
00:39 theBear but if yer gonna get carried away like that, probly just as easy to store a handful of readings in a builtin or small microwire eeprom than bother with all the code to handle sd/mmc
00:39 theBear heh, beat me to it
00:41 useless-afk anyhoo, peple are building these lan cards barely 1.5 inches / 3cm long, but only for arduinos :-/
00:41 useless-afk the arduino is too big, and in qty too pricey
00:41 useless-afk i wanna piggyback the avr on the en28j60 card
00:43 useless-afk http://www.ebay.com/sch/i.html?_from=R40&_sacat=0&_nkw=enc28j60&_sop=15
00:44 useless-afk they even have headers to jam the 2313 or tiny44 pcb onto
00:44 theBear no reason not to.. i can see a smallish avr fitting nicely on several of those boards, maybe even deadbug on top of the ethernet chip so as not to add lumpiness to the module overall
00:45 theBear damn they're cheap ! en28j60 modules used to cost a FORTUNE
00:45 useless-afk shouldn't get lumpy, the RJ hasto be over 1/2 inch tall
00:45 useless-afk yeas, i know
00:45 eless-afk looks mildly excited at the possibili
00:50 useless-afk if it handles only one connection at a time, it doesn't even need an ip stack
00:56 theBear pretty sure at least 3/4 of a basic tcp/ip stack is already built into the en28j60 chip, but it is an old and dusty memory saying that
01:03 useless-afk see all the code etc at http://members.home.nl/bzijlstra/software/examples/enc28j60.htm ? i am looking for a http://www.ebay.com/itm/200966953770 that has an avr all set up on it, so i can attach a few pins to a serial ram on my controller card, so the avr/en28j60 can read the data, and/or send commands to my controller
01:04 useless-afk to stuff some data into the thing just shouldn't need so much work
06:09 GuShH hrmm wonder if this is worth getting http://www.my-tool-shed.co.uk/p1084837/Stanley_0-96-230_FatMax_Auto_Wire_Stripping_Plier/product_info.html
08:20 theBear wtf ? stanley just copied the classic and original toledo strippers and added a setscrew or two for stripping slightly larger wire if needed ! i expect better from stanley and mr f. max !
08:22 Tom_itx times are tough, you gotta do what you gotta do
08:22 GuShH they seem good enough, unsure about quality
08:22 theBear and looks like the same weird titanium-looking alloy stuff is used for the jaws on the stanley, which is the only weakpoint of the toledo, drop them 20ft or more onto concrete and whatever that metal is tends to shatter a bit, but ya know, that's a BIG drop, and they sell spares... so in summation, the stanley tool can't be much better or worse than the original and best it straightup copies, list pric
08:22 theBear e on the toledo is a few bucks less, so i'd guess that a decent store could make that match the discount price of these
08:23 GuShH I've only seen the stanley for sale
08:23 GuShH oh and they cost twice as much here
08:23 GuShH everything does, at least.
08:24 GuShH I have an old pliers style stripper (with the set-screw for cut depth) and one of those chinese all in one crimp / stripper tools
08:24 GuShH both suck.
08:24 GuShH the rest I've trashed one way or another and threw away
08:24 GuShH such as those automatic strippers they sell everywhere, with and without the adjuster
08:24 theBear and in general, that is by far the most foolproof, versatile and awesome style of stripper tool there is, nice auto-adjusting floatey jaws, 4 and a half clicks and any mains lead is neatly terminated ready to go in just seconds ! the other common tool, the usually red 'sideways' razors inside the manually adjustable jaws (kinda looks like a nibbler tool from a distance actually) thing, is USELESS next
08:24 theBear to one of these
08:24 GuShH and random clippers etc
08:25 GuShH theBear: then again I don't work on electrical on a daily basis, so any type of tool that I already "kinda have" is a bit hard to justify for me
08:25 GuShH but I do fancy one
08:26 GuShH crap I need a SPDP switch with pilot light in yellow plastic... that could be a hard find.
08:26 GuShH green would do though
08:27 GuShH err SPDT
08:27 GuShH rocker style
08:28 theBear hmm, they hard to find homepage for, but nevertheless, i guarantee toledo invented that style stripper probably a little before i was born, this is the original, http://www.toolsonline.com.au/ws210-toledo-tools.html and i noticed THIS http://www.toolsonline.com.au/ws665-toledo-tools.html updated model, which looks even more suspiciously similar to what stanley are selling all of a sudden
08:28 GuShH 15A
08:28 Tom_itx what a bunch of tools here.
08:28 GuShH like these... http://www.alibaba.com/product-gs/268795053/15A_red_led_spdt_rocker_switch.html oh neat, are those rubber shrouded?
08:28 GuShH but, I need it now.
08:29 theBear mmm, i had one for years, and access fulltime at work for many more now, and i only tend to grab them for things like stripping various mains leads or MASS stripping of big fat single wires maybe... anything small or normal the sidecutters are still quickest
08:29 theBear Tom_itx, oooh, hehehe, almost missed that one :)
08:29 GuShH theBear: the stanley has a setscrew for tiny wires
08:30 GuShH and you can define how much it should strip
08:30 GuShH up to 10mm I think
08:30 Tom_itx strip it all the way baby
08:31 Tom_itx go to your local electrical supply and buy some
08:33 GuShH I will, but they won't have any
08:33 GuShH they'll tell me to go to X and X will tell me to go to Y and so forth
08:33 theBear hmm, i thought the setscrew was for opening them for bigger ones, and you shouldn't have to define, half the magic of that style of stripper is the kinda self-resisting springey nature of the top half of the clamps, you can 'gently' guide or start the stripping so they grab wide or nice and close, even be sneaky and strip a thin wire on one side while using a big fat different sized outer for 'grab' on
08:33 theBear the other side
08:33 Tom_itx so start with Z and be done
08:33 GuShH Z is unknown
08:34 theBear i got my personal pair of toledos a few years ago at the closest random non-chain hw store the web showed me....
08:34 GuShH I've yet to figure out the holy grail on electrical suppliers
08:34 Tom_itx we've got a few here
08:34 Tom_itx Grainger has tools
08:35 Tom_itx but Delta electric has more electrical stuff
08:35 Tom_itx Fastenal doesn't have much electrical tools
08:36 Tom_itx Graybar has a few
08:36 GuShH so far I've found a great supplier for steel (with free deliveries of ANYTHING I want) and a big hardware store that carries almost everything I need.
08:37 GuShH the only problem with that store is the owner isn't always there, and some of his employees are idiots
08:38 Tom_itx if he paid for good idiots, you wouldn't be able to afford his prices
08:38 GuShH I can barely afford them already!
08:38 GuShH he's hiring though
08:38 Tom_itx what's he pay?
08:38 GuShH no clue
08:38 Tom_itx i may be over...
08:38 GuShH it's just the one pot-head guy that I can't stand
08:39 GuShH the owner is great, he's a machinist so just about anything you ask him he knows about or knows someone who does.
08:39 Tom_itx he won't share?
08:40 GuShH plus he's very patient...
08:40 Tom_itx must be an ole fart
08:40 GuShH over 60 I guess
08:40 Tom_itx he's in it for the fun now
08:41 theBear i dealt with a few since i been back in this state, but i suspect only ever physically been in the warehouse/factory counter of one, and i wasn't paying attention 'cos i was halfway thru a meeting/special relationship/discount/acct negotiation at the tim
08:41 theBear e
08:41 GuShH some customers have quite silly requests
08:41 GuShH for instance last time I went there a guy wanted nickel plated polished wood screws
08:41 GuShH with a specific type of head
08:41 Tom_itx alot of those types of places are gone here nowdays
08:41 GuShH for a car restoration project
08:42 Tom_itx i miss them
08:42 theBear meh, you should know by now, if you are shopping somewhere and the person working there knows more about what they selling than you do, something has gone horribly wrong
08:42 GuShH >_<
08:42 Tom_itx you get that lifelong list of who knows what then when you go to use it you find out it's been leveled
08:43 GuShH theBear: he owns a machine shop among other things
08:43 GuShH they have a stihl dealership as well
08:43 Tom_itx i got a couple of those
08:43 GuShH but it's the only place I know of that carries high quality stuff and non common stuff.
08:43 Tom_itx and an old mac
08:44 GuShH mom and pop hardware stores are rather common around here, some are just plain crap though
08:44 GuShH I do favor them over big chains
08:44 Tom_itx they used to be here as well but the big corporate chains have run them out of business
08:44 Tom_itx now we deal with morons
08:45 theBear owners don't count, specially ones that do it 'cos they honestly enjoy the subject/industry
08:45 GuShH the big chains around here are crap though
08:45 GuShH one of them doesn't carry any sort of taps
08:45 GuShH the other carries mostly carbon steel taps, no hss at all
08:45 GuShH and of course they never have the one you want
08:45 Tom_itx i spose i should go now
08:45 GuShH or the prices are missing, mis-labeled, mis-placed....
08:46 GuShH theBear: well a few things are pricey on that store, but they do have just about anything you want and that's neat.
08:47 Tom_itx they all start out great to lure you in then they get rid of half the good help, keep the kids and idiots and then you're stuck
08:47 theBear sure is !
08:48 Tom_itx oh and the old ladies that need something to do since they're bored
08:49 GuShH for instance when I had to drill a hole on the subframe of my brother's jetta I got all I needed in that one stop, headed over to the big store just to see what they had by comparison, not even one item. not the arbors not the hole saws not the taps, bolts, nothing I bought at the previous store -- nothing at all.
08:49 GuShH and yet they thrive...
08:49 Tom_itx i still tend to shop at the more 'industrial' places if at all possible
08:50 GuShH by the way Lenox is the shit when it comes to holesaws.
09:05 GuShH speaking of which http://www.oneblade.com/#!/trial-blade/shipping wth?
09:15 rue_house aren't we all buying things off the internet anyhow?
09:20 rue_house 30c in the thermal tank isn't gonna last long
09:20 rue_house 25 b the time it circulated to the house
09:45 KongfuPanda hi
09:45 KongfuPanda anyone online ??
09:46 zap0 nope
10:13 KongfuPanda something is wrong with my robot :(
10:13 KongfuPanda I replaced my servos and now it keeps restaritng
10:14 KongfuPanda I think these servos may be using more current than before and my PSU cannot cope
10:28 KongfuPanda bah
10:28 KongfuPanda looks like these servos are crazy power-hungry
11:03 GargantuaSauce i have the same issue with my current setup sometimes
11:03 GargantuaSauce next iteration of the electronics will have a diode and a big cap on the supply for the mcu and servo controller
11:28 theBear what supply you running the servos off ? the rule generally is "servos are big and ugly and don't much care about their own powersupply, run them straight off battery/input/main psu voltage to avoid trouble, and whatever you do NEVER connect them to your nice clean regulated avr/digital supply
11:29 GargantuaSauce i am using an smps for both and a linear regulator after that for the digital stuff, hence the issue
11:30 theBear err, hence ? a linear reg really shouldn't care WHAT feeds it so long as the dropout is stayed away from
11:31 GargantuaSauce the servos can draw more than the saturation current of the buck converter's inductor
11:31 GargantuaSauce so the voltage plummets
11:32 theBear oh well, that's a different issue, the supply is just plain too small
11:33 theBear when it's more noise than lack of power you see things like random resets and stalls and jittery servos etc
11:34 GargantuaSauce those symptoms are indicative of either, since the servos do not draw current consistently
13:43 theBear a reg doesn't care about consistant, that's what makes it a reg... if ANY switching/motor noise gets thru a reg like that, it's gotta be a dropout issue
13:54 GargantuaSauce .....
13:54 GargantuaSauce exactly
13:57 GargantuaSauce also the servos' freewheeling can dump a bunch of current back onto the supply raising the voltage
13:57 GargantuaSauce and when the supply is high enough relative to the control pulses they start looking like all 0's
13:58 GargantuaSauce so there is all sorts of shitty behaviour that can happen
17:59 Fruity hello
19:01 GargantuaSauce greetings
19:06 Fruity sup
19:08 GargantuaSauce just awoke from a power nap
19:08 Fruity would you skype with me?
19:08 GargantuaSauce i generally like to get to know someone before cybering
19:10 Fruity i don't cyber
19:10 Fruity i only want to get to know you
19:11 DagoRed ....
19:12 Fruity DagoRed do you wanna skype?
19:12 GargantuaSauce well that's surely a good first step but it makes more sense to converse here
19:13 GargantuaSauce particularly if you want to talk about...robots
19:13 DagoRed no
19:13 Fruity I don't really want to talk about robots
19:13 Fruity have you seen wild cat?
19:13 GargantuaSauce then you might want to move along to another channel
19:13 Fruity i suppose you all have since you're in a robot channel
19:13 DagoRed ..... I am creeped out
19:13 Fruity nah, i never get what i really want GargantuaSauce
19:14 Fruity i'd rather talk about robots than complete silence
19:14 DagoRed I'm working on a robot and discovered the linux 3.12 kernel is broken in terms of support for the device trees
19:15 Fruity i'm a 10/10 on the creep scale DagoRed
19:15 Fruity what kind of robot?
19:15 DagoRed quad copter
19:15 Fruity what's that?
19:15 DagoRed 4 bladded helicopter
19:15 Fruity ah
19:15 Fruity i know some things about cognitive robots
19:15 Fruity not so much about any other robots
19:16 Fruity do you have a pic of your copter?
19:17 GargantuaSauce i have a pic of mine, http://xn--d-bga.su/shitcopter.jpg
19:18 Fruity cool
19:18 Fruity i'd actually like to build a robot
19:18 Fruity i'm so lazy when it comes to reading and learning things though
19:18 Fruity and it's boring to do it all alone
19:18 Fruity ideally i should get a boyfriend who knows how to do it
19:20 Fruity you should make such robots for your kids GargantuaSauce
19:20 GargantuaSauce reproduction is not on my todo list
19:21 Fruity ah ok
19:21 Fruity why not?
19:21 Fruity you'd be a good daddy if you made them robot toys
19:23 Fruity eh
19:24 Fruity what's so fun about robots?
19:24 X-Scale Fruity: http://foreconomicjustice.org/10319/oxford-professors-robots-and-computers-could-take-half-our-jobs-within-the-next-20-years/
19:25 Fruity that'd be so awesome
19:25 Fruity i was going to say we could just work half as much but then i realized those people probably won't be smart enough to do the jobs that are left
19:31 X-Scale When robots produce robots that produce robots....it gets even more interesting
19:31 Fruity they'll never be able to replace social jobs though
20:34 MrCurious Yearly reminder: unless you're over 60, you weren't promised flying cars. You were promised an oppressive cyberpunk dystopia. Here you go.
20:37 rgantuaSauce cracks the whip at MrCur
20:37 MrCurious got my servo screws
20:37 MrCurious may have to grind 2mm off them
20:37 MrCurious but they fit
20:37 MrCurious where is that kconfig.gz file located
20:38 MrCurious thought it was in proc
20:38 GargantuaSauce never heard of it
20:39 GargantuaSauce oh, distro-specific of course
20:39 MrCurious should be proc/config.gz
20:39 GargantuaSauce /boot
20:39 GargantuaSauce youre debianing rightr?
20:39 MrCurious ubuntu so yes
20:40 GargantuaSauce /boot/config-`uname -r`
20:40 MrCurious 3.4 kernel, only 3.2 configs
20:40 MrCurious which leads me to the true base question. is there a kernel config option to enable swap
20:41 GargantuaSauce fstab
20:41 MrCurious config_swap=y
20:41 MrCurious have had situations where it wont let me mount swap
20:41 MrCurious made by a dd, mkswap
20:42 MrCurious was puzzling me
20:42 GargantuaSauce is this some wonky custom kernel
20:42 GargantuaSauce the debian people cant be that retarded
20:43 MrCurious its a chromebook
20:43 MrCurious so gonna have to say yes
20:43 MrCurious but once i build the new kernel, all will be ok
20:49 GargantuaSauce i am using debian on the cubieboard and dicking with the kernel is pretty touchey
20:49 Fruity hi MrCurious i really like your nick, does it mean you'd want to skype with me? :)
20:49 GargantuaSauce if i forget the sata module for instance, i have to start over booting from the sd card
20:52 MrCurious judging from your nick, i am going to guess not...
20:52 MrCurious and moving right along
20:55 GargantuaSauce oh i got the first pair of those servos
20:55 Fruity lol
20:55 GargantuaSauce the brackets are going to change my life
20:55 MrCurious nice
20:55 Fruity i'm not gay
20:56 MrCurious do you want a quarter to call someone who cares?
20:57 MrCurious or is it still ten cents in argentina?
20:58 Fruity i'm not from argentina
20:59 MrCurious are you hear to talk about your robot?
20:59 Fruity i don't have one
21:01 Fruity i'm here to find someone to skype with
21:02 useless-afk isn't skype a phone call?
21:02 Elleo Fruity: try calling echo123 I'm sure you'll find someone appropriate to talk to at the other end
21:03 MrCurious i would have thought trying #skype insteald of #robotics would have been a smarter choice
21:03 Fruity i did
21:04 Fruity there's no #skype
21:04 useless-afk did you try all the irc networks?
21:04 Fruity useless-afk it is
21:04 Fruity nope
21:04 Fruity i tried only 2
21:04 Fruity cba
21:04 MrCurious you should try #hotsex
21:04 MrCurious i bet they want to talk there
21:04 Fruity i'm asexual
21:04 Fruity wouldn't really go over well
21:05 useless-afk try dalnet, many humans like to pm and skipe and "chat" there
21:05 MrCurious i aint judging man-woman
21:05 Fruity i don't like dalnet much
21:05 useless-afk you won't like freenode much
21:05 Fruity :P
21:05 Fruity i been on freenode a few years
21:06 Fruity 6 years
21:06 Fruity it's good for other stuff
21:06 useless-afk and yet, you still have no one to "skype" with
21:06 Faek Far longer than i
21:06 MrCurious i smell TROLL ASS
21:06 Fruity i'm not a troll ass
21:06 Fruity i'm just really weird
21:06 Fruity i do have people to skype with but i'd prefer someone new
21:06 Fruity i only started using skype a few days ago
21:06 Fruity so i'm relaly excited about it
21:06 Fruity and i skype new people as often as i can
21:07 useless-afk you are excited about a phone? how old are you?
21:07 Fruity that's a creepy question
21:07 useless-afk it fits the discussion
21:07 MrCurious cant you just do like republicans and hang out in mens rooms in airports?
21:07 useless-afk them and their "wide stance"
21:07 Fruity uhm
21:08 Fruity im female so no
21:08 MrCurious he was just reaaching for a hand of .... toilet paper $20's
21:08 useless-afk and you couldn't get any pervs on dalnet to call you???
21:08 Fruity i don't want to talk to a perv
21:09 useless-afk it's a PHONE , all you will get to call you are pervs
21:09 Fruity nah
21:09 Fruity i got a few other people
21:09 MrCurious i think all the normal people out there have NO desire to talk to anyone they dont know
21:09 Fruity none has been a perv so far
21:10 Fruity oh i don't want normal people
21:10 MrCurious going to have to assert anyonw who talks to you without knowing you is ikely in that pervy category
21:10 Fruity they've all been dudes
21:10 Fruity but none has been a perv
21:10 Fruity didn't even mention anything dirty
21:11 Fruity i don't even have a cam
21:11 Fruity so i can only do voice
21:11 eless-afk looks at L
21:11 MrCurious i am going to exercize /ignore for the first time in a few years
21:12 Fruity go ahead
21:12 Fruity not bothered
21:13 GargantuaSauce just go on chatroulette or something
21:13 Fruity it's quite boring
21:13 Fruity i never met anyone interesting there
21:13 Fruity and they all wanted to talk dirty
21:14 useless-afk well duh
21:14 MrCurious i tried chat roulet once.
21:14 useless-afk hey GargantuaSauce , what's your robot wearing tonite?
21:15 MrCurious found out quickly "did not want" followed by "how is that possible"
21:15 GargantuaSauce it's wearing the usual, but i'm about to throw together clunky new electronics
21:15 Fruity i actually talked to a guy on chatroulette and he wanted me to go visit him in spain etc and said he'd buy me stuff etc, then my male friend came into the cam and we started making out :P was quite funy
21:15 useless-afk you said you have no cam
21:16 Fruity he does
21:16 Fruity was at his place
21:17 Tom_itx Fruity, why are you here anyway?
21:19 Fruity in #robotics specifically?
21:19 useless-afk yeas
21:20 Fruity so i was looking for a fitting channel in list
21:20 Fruity i checked for rooms with quite many people but not too many
21:20 Tom_itx not sure this is the channel for you
21:20 Fruity than i looked at the names and i've had crushes on two guys with robot in their nicknames and i am a bit interested in robots so i picked robotics
21:21 useless-afk what do you want to talk on the phone about?
21:21 Fruity anything
21:21 Fruity i'm flexible
21:21 eless-afk
21:22 MrCurious i dont normally advocate this video but seems appropriate... http://www.youtube.com/watch?v=HGSVYgcy24Q
21:23 Fruity lol
21:24 useless-afk did you know if you say "marshmellow" you can be klined, but not if you go asking people to skype you because you are flexable and will talk about anything?
21:24 MrCurious urge to say marshmellow rising
21:25 MrCurious zut!
21:25 Fruity what's wrong with saying marshmellow
21:25 useless-afk it's offtopic, whereas begging people to call you to talk about anything is on-topic
21:26 Fruity useless-afk you found me a skype partner when trying to kline me :P
21:26 Fruity good work
21:26 useless-afk hire me
21:26 Fruity we must wait and see
21:26 Fruity the person needs to download skype
21:27 Fruity it's a bit worrying how he said he likes to skype with strangerz and then it turns out he doesnt have skype
21:27 useless-afk so you'll hire me based on how much money you get from them?
21:28 Fruity prejudice really sucks
21:29 useless-afk well, you got freenode's blessings
21:38 MrCurious night folks. this place is getting a little too strange for me
22:13 Fruity i got too tired to skype with him
22:13 Fruity i'm gonna sleep instad
22:13 Fruity i don't know how all those hours passed by
22:45 applebloom hi i have a problem... i wanted to make this circuit to spin a DC motor and it required a NPN transistor apparently, but the guy at radio shack told me to use a PNP transistor... can i still control the motor this way?
22:45 applebloom specifically he told me to buy the TIP42 transistor
22:45 applebloom here's the circuit btw: http://www.dummies.com/how-to/content/how-to-spin-a-dc-motor-with-the-arduino.html?cid=RSS_DUMMIES2_CONTENT
22:46 ace4016 did he say why?
22:46 useless-afk not witht hat schematic
22:46 ace4016 either would work, you just have to account for the PNP's current flow and biasing (not the same as NPN)
22:47 useless-afk and reverse the collector and emitter polarity
22:47 useless-afk offsett he base voltage
22:47 useless-afk so yeas, a pnp will work, if you redesign the circuit to use a pnp
22:49 useless-afk a tip41 may not have enough gain even, i'd have used a darlington, or a IRFZ44 or IRF1404
22:51 applebloom yeah i have no idea how i would redesign it
22:51 useless-afk that's why you should buy what the schematic calls for
22:51 applebloom the schematic didn't even say NPN, i just found out the difference today...
22:51 applebloom after i bought it unfortunately
22:52 useless-afk the schematic shows the diagram of a npn
22:53 applebloom i didn't know the difference until after i bought it
22:53 useless-afk you get it at Radio Shack?
22:54 useless-afk i suspect yuo will know more that they ever will
22:54 useless-afk you don't need to know anything about electronics to work there any more
22:55 applebloom well i was even going to buy the NPN
22:55 applebloom but the guy insisted i get the one with the heat sink
22:55 applebloom i told him it was for arduino too
22:55 useless-afk does not matter what it was for, he intentionally sold you the wrong one
22:56 applebloom you think i can return it after opening it?
22:56 applebloom hopefully i can
22:56 useless-afk i dunno, they can claim you used it and burned it up and refuse it
22:56 applebloom i mean like you said there should be a way of redesigning it to work like i need it too, but i don't know where to start tbh
22:57 useless-afk you have no junk box parts?
22:58 applebloom not really
22:58 applebloom i bought a bunch of crap from radioshack i was hoping would help be start building my first robot
22:58 applebloom but obviously i bought a few of the wrong things
22:59 useless-afk did you buy ANY npn transistors or mosfets?
22:59 applebloom no sir
22:59 eless-afk is a m
22:59 applebloom only the PNP transistor and a diode today
22:59 applebloom oh sorry ma'am
22:59 applebloom it's hard to tell on IRC
22:59 useless-afk yeas
23:00 useless-afk with no alternate parts, all i can say is buy the specified parts from ebay, or Radio Shack, tomorrow
23:00 applebloom i might have to wait until monday, idk if they're open tomorrow
23:01 useless-afk if you will be doing more electronics, there's a few part numbers that are handy to have on hand
23:05 useless-afk TIP102, TIP107 , IRFZ44 , 2N4401 , 2N4402 , 2N7000 , TIP41 , TIP42
23:05 useless-afk there's many cross references to thiose, and many parts with similar specs
23:05 GuShH useless-afk
23:06 useless-afk buffers are handy to have too, like the 74HC245 , occasionally a latch like a 74HC574 , or a decoder like the 74HC138 or 74HC259
23:06 useless-afk depends on what you want to be doing
23:07 useless-afk good power supplies too, +5v of course, and praps +8, +10, +12, etc , you can make those easily and cheaply enough using laptop power supply adapters
23:07 Faek Why not desktop?
23:08 useless-afk laptops are smaller and quieter, you cannot make several isolated +12 off one desktop, etc
23:11 useless-afk just don't believe a laptop spec saying 5amps, it will deliver 2amps ok continuous, else you'll burn it up
23:39 useless-afk so why can't you put servos in Ironman's exoskeleton, and call it a robot?
23:40 GargantuaSauce they would interfere with the nanomachinery
23:40 useless-afk oh
23:44 useless-afk was that a faek quit?