#robotics Logs

Sep 06 2014

00:55 Terrenkt rue_shop3, "Wipeout"
00:55 Terrenkt the drumming is EXTREMELY technical in that
00:55 Terrenkt I have footage of it :D
01:06 rue_shop3 but I dont want to hear a drummer going crazy on symbols or beating a drum faster than it seems like a human should be able to
01:07 rue_shop3 humans are MSB first, right?
01:11 Terrenkt what
01:31 mrdata yes
01:31 mrdata in most places
01:32 mrdata tho roman numerals kinda screw that up
02:33 rue_shop3 this is really odd
02:33 rue_shop3 this code is not working
02:33 rue_shop3 but everything works
02:34 rue_shop3 I dntthinkI can debug well at 12:15am
03:07 rue_shop3 got it
03:07 rue_shop3 didn't click that the times from the remote were not 5, 2.5 and 1ms
05:04 deshipu remotes are notoriously nonstandard
05:38 rue_house it was a sharp remote, they are supposed to have written the book
05:39 deshipu maybe it wasn't sharp enough ;)
05:40 deshipu I have a remote that I need to test
05:40 deshipu I guess I will do it today
05:40 deshipu by the way, I started working on a custom pcb
05:40 deshipu for my robots
05:40 deshipu tried diptracem and kicad
05:40 deshipu diptrace*
05:41 rue_house your not trying to make a does-all for robots are you?
05:41 rue_house I'm doing batches of generic things, its working great
05:41 deshipu nope, specific for the quadrupeds that I make
05:41 rue_house ah
05:41 deshipu with mount holes for screwing the servos
05:42 deshipu I want to make a tiny one, with the pcb as the body
05:42 rue_house 3am, ouch
05:42 deshipu good night :)
11:00 techkid6 Heya :)
11:42 rue_more Tom_itx, you must have been carefull to have made your u4 boards without them turning up on ebay etc from china...
11:42 rue_more just occured to me
11:43 rue_more maybe they only do that with open source projects
11:43 techkid6 Ah, FTC stuff is ready to see :D
15:31 chris_99 you got any ideas for them
15:31 chris_99 yet
15:34 MrCurious nothing much. temp sensor
15:34 MrCurious but i think they have that built in
15:36 chris_99 maybe i'll have to make my toaster/kettle/lamps all IP addressable
15:38 MrCurious they seemed to be items that would be good to have when inspiration hits
15:39 chris_99 mmm
15:41 chris_99 i was trying to find what bandwidth you can get out of them
15:41 chris_99 but couldn't really se
15:41 chris_99 *see
15:44 MrCurious i cant imagine that much...
15:45 MrCurious but i may be surprised
15:45 MrCurious probably same bandwidth limits found on AVR serial port
15:46 chris_99 i saw this one too linked too from HaD - http://www.hlktech.net/product_detail.php?ProId=39
15:47 chris_99 looks like it can do pretty fas
15:47 chris_99 t
15:51 MrCurious http://www.aliexpress.com/snapshot/6220045208.html
15:51 MrCurious down side, may require an ext antenna
15:51 MrCurious upside... freakin small
15:53 Hyratel is this for the BT headset you're workin on?
15:53 MrCurious its 802.11n
15:55 MrCurious http://www.aliexpress.com/wholesale?SearchText=ESP8266+&catId=&initiative_id=SB_20140906123544
15:55 MrCurious so many varieties
15:59 chris_99 oh that's cool, i wasn't sure what type of antenna fitting that is
15:59 chris_99 tho
16:00 MrCurious just ordered 5 of a third variety
16:00 MrCurious http://www.aliexpress.com/item/ESP8266-SMD-serial-WIFI-industry-milepost-unbeatable-price-deep-Mingyang-Electronics/2031750325.html
16:00 MrCurious really hoping it comes with pinouts
16:01 chris_99 oh yeah
16:01 chris_99 what is the 2nd big chip
16:02 MrCurious no idea
16:02 chris_99 it looks like it says winbond
16:02 MrCurious i think its the chip that does the wifi
16:02 chris_99 but i can't work out what its for
16:02 chris_99 no the esp8266 does the wifi i thought
16:02 chris_99 as you can buy that buy itself
16:03 MrCurious i think there is also a small micro controler on the board
16:03 MrCurious according to what i have read, but they are having trouble with programming it
16:04 chris_99 the MCU is built into the esp8266 i thought
16:04 chris_99 got it
16:04 chris_99 it's SPI flash
16:05 chris_99 http://www.vla.com.br/news/25X-spiFlash-Memory-Overview-Selection-Guide.pdf
16:05 MrCurious ahhh for the code to run th mcu
16:06 chris_99 mmm
18:16 am8 Anyone have any advice for a good place, books to start learning assembly? Mainly geared towards embedded chips such as atmega and arm. Thank you.
18:23 ace4016 uh...
18:23 ace4016 find the assembly manual for your chip
18:23 ace4016 the instructiosn are different for each chip so getitng a generic one is kind of...uh..
18:25 am8 I see your point.
18:29 ace4016 as a good intro in general, i found the HC11 set of books to be decent; and once you learn one , you'll more or less understand the rest as long as you have their manual
18:35 am8 is that the Motorola 68HC11?
18:46 fluffywolf yay, I'm not the only person to ever code for the hc11. :P
18:46 ace4016 am8, aye :P
18:47 am8 Thanks ace!
18:50 fluffywolf ace4016: do a lot of hc11 programming?
18:52 ace4016 no; only when i was in uni. after that i didatmegas and arms and the like, and for larger projects, you don't generally do full ASM :P
18:54 fluffywolf define large... I wrote a small OS, graphics and sound libraries, and a demo game, in hc11 asm... :P
18:54 am8 Hey ace, that is what I was going to use as my first chip for learning was atmega8 what do you recommend on that chip?
18:55 ace4016 i don't know of any guide books for the atmega. I think the manual on it that has all the instructions would be good, but I also know how to ASM so it's kind of a biased view :P
18:56 fluffywolf all asm is the same. :P
18:56 fluffywolf once you know one, learning another is about five minutes...
18:56 fluffywolf cisc, risc, hc11, x86, arm, sparc...
18:57 am8 I am going to go through this source here http://www.avrbeginners.net/ and hope I can learn some of the basics.
18:57 fluffywolf I would suggest learning C first if you don't already know it.
18:57 am8 I know c++
18:57 fluffywolf real C - not c++, or any c-with-helpers-for-dummies C.
18:57 ace4016 fluffywolf, something used in industrial/commercial world. it's not impossible, but when you start getting to the larger chips that do more, you'll spend more time deving for no reason
18:58 Tom_itx am8, http://tom-itx.ddns01.com:81/~webpage/pdf/atmel/ASM_User_guide.pdf
18:58 Tom_itx http://tom-itx.ddns01.com:81/~webpage/pdf/atmel/AVR_instruction_set.pdf
18:58 Tom_itx what more do you need?
18:58 fluffywolf ace4016: yeah, I know. I haven't written much asm in a very long time... and when I did, it was components for C programs that the compiler couldn't generate. (sse, etc)
18:58 ace4016 ah ha, so they do have a user guide
18:59 am8 tom, ty sir!
19:09 fluffywolf I wish there was some quick way to trade tools I have too many of for tools I do not have enough of.
19:09 fluffywolf for example, for some inexplicable reason, I have TWELVE 9/16ths wrenches in my spare wrench bag, and ZERO 5/8ths wrenches.
19:12 Tom_itx http://www.atmel.com/images/doc1022.pdf
19:13 Tom_itx there's the official location of it
19:13 Tom_itx fluffywolf stop hoarding 9/16 wrenches
19:15 fluffywolf I don't want to!
19:15 fluffywolf hence why I just said I want to get rid of the extras.
19:16 fluffywolf I'll trade you a half dozen US-made 9/16ths wrenches for a 5/8 and 15/16. :P
19:17 fluffywolf heh, craftsman 5/8 wrenches are $1.99 with free shipping. might as well just buy a couple.
20:04 rue_more ok, where did all the 7/16 go?
21:10 Tom_itx rue_more you should have none
21:11 Tom_itx you are living in metric land
22:22 rue_more hahaha
22:22 rue_more as long as the states holds onto metric, the rest of the world is stuck with it
22:25 rue_more Tom_itx, if a kid in the states is asked what 1/3 of a foot is, do they break out a calculator to work it out?
22:25 Tom_itx 4"
22:25 rue_more yea, but what do the kids know
22:25 Tom_itx i can tell you they can't count change
22:26 rue_more I'm guessing they break out a smartphone and use goodle
22:26 rue_more google even
22:30 uffywolf hasn't noticed anyone having any problem working with imperial u
22:31 fluffywolf and a third of a foot is a lot easier than a third of a meter.
22:31 rue_more but if current school kids type it into google anyhow, why not just use metric?
23:05 fluffywolf 64 bytes from den03s05-in-f0.1e100.net (74.125.225.160): icmp_seq=199 ttl=42 time=10366 ms
23:05 fluffywolf I do so hate my internet connection.
23:55 mrdata ugh
23:55 mrdata fluffywolf, that's high latrency
23:55 mrdata er, latency
23:57 fluffywolf yep
23:57 fluffywolf bbl, wolfy bedtime