Hi Dennis, I'm not sure I understand your question. The "description below" just details some of the things that PID control provides, automatically, as it...
44524
David Buckley
robots42
Feb 5, 2011 5:50 am
Hi David If you understand PIDs and are good at implementing them then of course they can help a lot. My point was PID and shaft encoders are not going to help...
44523
dan michaels
oric_dan
Feb 5, 2011 5:41 am
... I thought, at last notice [offlist], Randy was going to go ahead and do the invisible blackboard thing himself, as it was his idea and he was the biggest...
44522
David Buckley
robots42
Feb 5, 2011 4:55 am
I was just going to say the same July 2009 [AdvancedRobotics] RE: interprocessor communications was RE: [FrontRangeRobotics] Re: bot-50 DAvid ... From: Charlie...
44521
Dennis Clark
dennis_lm_clark
Feb 5, 2011 4:49 am
I'll bite. I do like PID loops with wheel encoders, but your description below goes well beyond that. What are you feeding your PID loop with? A gyro or a...
44520
Charlie H
charlieheath...
Feb 5, 2011 4:34 am
... Randy, Maybe that was the discussion about reflective memory on the advanced robotics group about 04-aug-2009? Charlie...
44519
Randy M. Dumse
rmdumse
Feb 5, 2011 2:45 am
dpa_io said: Friday, February 04, 2011 3:18 PM ... Is this an inside joke? No, dang it, not that body part, on this forum. :^o ... You da man. B^) Look, I've...
44518
dpa_io
Feb 5, 2011 2:39 am
Here's maybe a more clear example of using PID to drive very slowly and still be able to summon enough torque to climb over obstacles: ...
44517
dpa_io
Feb 5, 2011 2:21 am
Hi David, There are some other advantages to using PID control aside from the ones you've mentioned, like: 1. Keep the robot running in a straight line when...
44516
David Buckley
robots42
Feb 5, 2011 12:50 am
I can imagine cases where it may be advantageous and cases where a rethink of what was necessary would be advantageous. Having all data available to everything...
44515
Randy M. Dumse
rmdumse
Feb 4, 2011 11:43 pm
David Buckley said: Friday, February 04, 2011 4:18 PM ... You wouldn't need it, but you'd get it for free - for all contextual data in the system. As soon as a...
44514
David Buckley
robots42
Feb 4, 2011 11:36 pm
Real mice as in biological? Yes I think they have the equivalent ;) Real micromice definitely have shaft encoders and with maybe 3:1 gearing and 20mm dia...
44513
dan michaels
oric_dan
Feb 4, 2011 10:42 pm
... Do "real" mice have shaft-encoders?...
44512
dan michaels
oric_dan
Feb 4, 2011 10:40 pm
... Still surprising that people were talking about breaking SR04 - just because it was different. People really are different in Texas....
44511
David Buckley
robots42
Feb 4, 2011 10:17 pm
Hmmm? why would you need sonar updates with uSec latency? ... From: Randy M. Dumse To: SeattleRobotics@yahoogroups.com Sent: Friday, February 04, 2011 7:40 PM ...
44510
David Buckley
robots42
Feb 4, 2011 10:15 pm
Randy I can feel for dpa. Years ago when I first had my robots at University organised functions I got "oh but they are made of wood! WE use Lego and Poster...
44509
dpa_io
Feb 4, 2011 9:18 pm
Oh shoot Randy, I'm not beating my breast here. Just expressing a little pleasant surprise... :) cheers, dpa...
44508
Randy M. Dumse
rmdumse
Feb 4, 2011 7:50 pm
David Buckley said: Wednesday, February 02, 2011 4:55 PM ... Yes, exactly. I think SR04 is the base line for what we should require in a differential drive...
44507
Randy M. Dumse
rmdumse
Feb 4, 2011 7:40 pm
Dcwjobs2004 said: Thursday, February 03, 2011 10:59 AM ... Yes. Each processor would need a copy of the blackboard in their memory space, and the job of the...
44506
dcwjobs2004
Feb 3, 2011 4:58 pm
Another way to think of this is as a common blackboard where each processor can read all of it but has permission to write only to its patch. Dave...
44505
Randy M. Dumse
rmdumse
Feb 3, 2011 3:52 am
Giuseppe Marullo said: Saturday, January 29, 2011 4:51 PM ... Not really what I was imagining. We used to sell a PC add on board. It was an ISA board with V25 ...
44504
Alan
km6vv
Feb 2, 2011 10:55 pm
Thanks! I downloaded the article. I'm sure I must have read it at the time! Alan KM6VV ... Cellar...
44503
David Buckley
robots42
Feb 2, 2011 10:55 pm
Looks a nice robot but what was TD doing with it? Nice graphs and good description of the environment. But what does "I ran the SRS Workshop Robot around a 24...
44502
dpa_io
Feb 2, 2011 10:20 pm
Alan, The multi-tasking executive on the HC11 robots was based on the Circuit Cellar article: "A Minimalist Multitasking Executive" which appears to still be...
44501
Alan
km6vv
Feb 2, 2011 9:34 pm
Very nice 'bot! Quite worthy of study. I'm currently looking for study materials for an upcoming robot class at HBRobotics. Your Subsumption and SR04...
44500
dpa_io
Feb 2, 2011 7:52 pm
Well cool is that! Thanks for the link Larry. I didn't use the word "hated" :) dpa...
44499
Larry Geib
lorenzojose2000
Feb 2, 2011 7:42 pm
Hmm. The SRS hated it, yet they credit SR04 as the inspiration for their workshop robot. http://www.speakeasy.org/~tomdean/SRS-Workshop.html...
44497
dan michaels
oric_dan
Feb 2, 2011 5:54 pm
... Unclear - why would anyone talk about stomping someone else's bot? Bot_Envy? Guys stuck in the old [now seen to be out-of-date] GOFAI mindset? Uh? ... and...
44496
dpa_io
Feb 2, 2011 5:16 pm
11 degrees outside, hard ice covered by a couple of inches of snow, a good time to catch up on the SRS list. How surprising -- and pleasing -- to find my SR04...
44495
dan michaels
oric_dan
Feb 1, 2011 9:08 pm
... Not the same story, but David.B put me onto Ron Goulart, circa 1970s, who I had never heard of before. http://en.wikipedia.org/wiki/Ron_Goulart ...
