#robotics Logs

Nov 21 2012

08:09 Tom_itx dunno if you remember
08:58 rue_mohr I remmeber the name
17:36 ZiauddinMK i'm making a quadruped walking robot
17:37 ZiauddinMK any mechatronics engineers here?
17:37 CoJaBo i had a fun enough time making one just *drive* >_>
17:37 home rue_mohr: yo
17:37 home rue_shop3: yo
18:03 ZiauddinMK CoJaBo: you mean the gaits?
18:04 CoJaBo ?
18:04 ZiauddinMK you were talking to me?
18:05 CoJaBo not sure what you mean by gaits there
18:06 smeding ZiauddinMK: i think CoJaBo was talking about just having a robot with wheels
18:10 ZiauddinMK smeding: you are here too?
18:10 ZiauddinMK how are you mate
18:11 smeding apparently i am
18:11 ZiauddinMK i once talked to you in #electronics or #arduino about digital filters
18:11 smeding i remember :)
18:11 ZiauddinMK before i notify you?
18:11 smeding ##electronics, pretty sure
18:11 auddinMK is listening to vegetables soup on the
18:11 ZiauddinMK hehe
18:11 ZiauddinMK bubbles
18:11 CoJaBo Yeh; making it drive straight, to be specific.
18:12 ZiauddinMK CoJaBo: this is easy
18:12 smeding just stick encoders on the wheels?
18:12 CoJaBo The encoders were faulty.
18:12 smeding that wouldn't help
18:13 CoJaBo Yeh. I commanded it "drive forward for X encoder tics at full speed, then stop". It ran wildly around the room till i could catch it and hit the TINY power switch.
18:14 smeding hook up a camera, implement visodom ;-)
18:14 Centauri You can also adjust wheel speed by other sensors (compass, gyro, etc)
18:14 ZiauddinMK CoJaBo: you can use an optical mouse camera sensor to track position
18:14 CoJaBo It used a Kinect.
18:15 ZiauddinMK but it should be flushed to the earth
18:15 ZiauddinMK flush-mounted i mean
18:15 smeding yeah that seems problematic
18:15 smeding like i said, visodom ;-)
18:17 CoJaBo visodom?
18:17 smeding visual odometry
18:17 e4016 grumbles and rolls ar
18:17 smeding acquire reference points in camera data, and see how much they move
18:18 smeding it's what the MER rovers did to account for slippage!
18:18 CoJaBo Eventually ended up just replacing the robot lol.. it had too many problems
18:18 CoJaBo The new one (still used Kinect) had working odometry.
18:19 CoJaBo I came up with plans for localization based on wifi, but a doomsday scenario prevented me from completing it >_>
18:20 CoJaBo It was able to map out wifi hotspots and generate pretty graphs, but i never got to the point where it'd be able to locate itself from that data. that kinda sucked :/
18:24 ace4016 like google :P
18:25 CoJaBo Yeh. But indoors.
18:27 smeding seems like it'd be problematic anyway
19:25 zhanx got my new place today
19:26 orlok awesome
19:26 zhanx yep
19:26 orlok out place gets handed over Jan or Feb next year
19:26 orlok BIG SHED!
19:26 orlok :)
19:26 zhanx started on the man clave after the movers came
19:26 zhanx tools line the walls
19:26 orlok concrete floor?
19:27 zhanx yep in north carolina
19:27 orlok any coating? (have i asked this before?)
19:27 zhanx new place so no
19:28 orlok looking at coating the garage floor in epoxy
19:28 orlok bit of effort to get the sorface prepped and it all done right, but apparently it lasts forever
19:28 orlok no concrete dust!
19:28 zhanx yep
19:28 orlok fluid spills wipe off, etc
19:29 zhanx not here
19:29 orlok i have a decent size double garage, with steps down to a workshop atatched to the back
19:29 zhanx nic
19:29 zhanx ee
19:30 orlok yup, probably going to have computer, etc in the workshop and insulate it somehow
19:30 orlok and an observatory
19:30 zhanx nice
19:33 orlok the workshop has a timber frame, si i should be able to jam some insulation in there and cover it with plywood or something
19:34 orlok timber frame, corrugated metal cladding
19:34 orlok zhanx: i keep bumping into us military types in another channel, they are all navy IT guys though
19:36 zhanx i am an a/c guy
19:36 orlok a/c?
19:36 zhanx air condioning
19:37 orlok oh, you out of the service now?
19:37 zhanx nope
19:37 zhanx that is my new job
19:37 orlok ahh
19:37 zhanx its easy
19:38 lok swears at it compliance au
19:38 zhanx ok need to open more boxes
19:39 zhanx my lab is a mess
19:39 ace4016 oh hey zhanx, long time
19:39 zhanx still looking for my pcb press
19:40 zhanx sup ace4016
19:40 zhanx i am unpacking *again*
19:40 ace4016 hehe
19:40 zhanx my new workshop is huge tho
19:41 zhanx if rue_mohr ever show up i was here
19:41 zhanx or rue_shop3
19:52 Tom_itx you out now?
19:52 CoJaBo HAHAHAaa, I got a reply to the "feedback" message i sent on the lax security of my online bank site.. (Paraphrased) "This email is encrypted to comply with federal standards. Click this link to decrypt it without confirming your identity in any way, shape, or form."
20:13 rue_mohr he wa
20:13 rue_mohr s
20:32 orlok oh, nice
20:32 orlok http://www.adafruit.com/products/571
20:32 rue_mohr I got ebay things today!
20:32 orlok perfboard designed like breadboards
20:33 Tom_itx does #ifndef require #endif?
20:33 orlok though, $12.50us for 3
20:33 rue_mohr yes
20:35 rue_mohr http://www.ebay.ca/itm/270945617296
20:35 rue_mohr for making power cables to my supply
20:35 Tom_itx they halfass indented this file and it's hard to follow
20:47 rue_mohr http://www.ebay.ca/itm/270723567658
20:48 rue_mohr for hooking probes to my scope
20:54 Tom_itx that was more than a dollar
21:17 rue_mohr I bought a bunch of non-dollar things
21:18 rue_mohr http://www.ebay.ca/itm/271000802802
21:18 rue_mohr clippies for power
21:19 Tom_itx ok on that rotary switch with the 'push' select
21:19 Tom_itx how can i figure out if it's active high or low?
22:26 Tom_itx ok the encoder seems to be working
22:43 rue_mohr http://www.engin.swarthmore.edu/academics/courses/e90/2004_5/dg_cs/dg_cs_FinalReport.pdf
22:43 rue_mohr hahaha I love it when they use 10 thou traces for everything
23:45 KimLaroux rue_mohr, http://www.engadget.com/2012/11/21/amazon-shopper-bot/