#robotics | Logs for 2016-12-03

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[00:12:32] <rue_shop3> yea, my get up and go, got up and left
[12:28:06] <rue_house> "Why is the 'just do it for me' button greyed out!?"
[13:46:27] <rue_shop3> I'v gone over it a few times, the chip I was using must have had a glitch that was making my code work
[13:46:42] <veverak> :D
[13:47:35] <rue_shop3> so I have to start all over again
[13:53:01] <rue_shop3> why the hell does this happen to me EVERY time I move a project from a breadboard to a pcb
[13:55:46] <rue_shop3> the tlc5940 is the MOST USELESS perph chip I think thats ever been created
[14:06:25] <rue_shop3> oooooh, I see the problem with my life, there are things I want done and things i need to do
[14:12:40] <Tom_L> hire out the need to and do the want to
[18:00:53] <anniepoo_> How do you decode the part code on servos?
[18:03:04] <rue_shop3> ?
[18:04:02] <anniepoo_> SG90s <-- have seen numbers like this from various manufacturers. MG I suspect is metal gear, SG is plastic. curious what the rest denotes
[18:15:10] <robopal> hmm neverthought of that
[18:15:46] <robopal> just a model series number, a revision?
[18:16:26] <anniepoo_> well, listings on amazon often imply it's some standard number
[18:16:45] <robopal> for example, I got some HS-55 hitech feather series
[18:16:53] <robopal> HS means high speed?
[18:17:32] <anniepoo_> ah, that makes sense
[18:17:34] <robopal> we could just be making these things up you know
[18:18:00] <robopal> I dont know, really...
[18:18:19] <robopal> I got some Futaba S3114
[18:18:54] <robopal> can't decode that! XD
[18:20:00] <robopal> mg yes, metal gear most probably
[18:20:07] <robopal> got some nice savox here
[18:20:08] <anniepoo_> Futaba seems to have it's own numbering scheme
[21:41:53] <anonnumberanon> rue_shp yeah a state machine best for finding "OK"
[21:42:04] <anonnumberanon> rue_shop
[22:51:28] <LoneStarRising> Hello
[22:52:50] <ace4016> hi
[22:53:09] <LoneStarRising> Do you mind if I ask a question about a Wikipedia page I was reading?
[22:53:41] <LoneStarRising> It's about Monte Carlo Localization
[22:54:01] <LoneStarRising> The page somewhat glosses over the motion sensor update portion of the routine.
[22:55:34] <LoneStarRising> If you have a belief about your location 'b' and you know the locations of the doors, as given in the example, along with the standard deviation of the distribution of the door sensor, how do you predict the probability of actually seeing the door.
[22:55:49] <LoneStarRising> This is predicated upon the example given in the Wikipedia page itself
[23:02:50] <ace4016> you likely base it on how accurate you've been in the past
[23:04:47] <LoneStarRising> I suppose the confusion I have lies in that I want to be able to assign a probability to a given particle
[23:05:11] <LoneStarRising> And, to do so, I need to know the probability of the sensor seeing the door at that particle's position
[23:05:28] <LoneStarRising> This is irrespective of the probability of said particle being my true position
[23:06:25] <LoneStarRising> To quote the Wikipedia article "For each particle, the robot computes the probability that, had it been at the state of the particle, it would perceive what its sensors have actually sensed."
[23:06:36] <ace4016> i'd have to read up more on it. wikipedia is generally a poor place to learn a new concept. it gives you a light taste and you have to dig a bit more to get the meat of the topic. tried some of the reference links to get a better understanding?
[23:06:59] <LoneStarRising> I did. I read Fox's paper, but I didn't totally understand it.
[23:07:11] <LoneStarRising> It's also working in 2 dimensions, and I am trying to simply work in 1 for now
[23:08:28] <LoneStarRising> Unfortunatly, all of the resources I have found are either working in 2 dimensions or of rather poor quality
[23:14:15] <LoneStarRising> Anyway, thanks for the help ace4016. I figured it was a long shot that anyone would know, but I am dying to understand exactly how it works.
[23:14:42] <ace4016> hehe, sometimes takes time
[23:15:54] <LoneStarRising> Yeah, I know :p I'll just ask a bunch of people I know, hopefully someone will understand how it works.