Hi All, Do you have a Kindle? If you do, you are familiar with the 'My Clippings.Txt' file that contains all the highlights, notes and page-marks that you did....
786
Jim
jimk43
Aug 18, 2010 3:58 am
Hi, I'm plotting some data using mPlotXY. I've used it before and it seems to work fine. For some reason, when I use it this time, it plots the data and then...
787
Samuel
samuelm_robo...
Aug 18, 2010 5:25 am
Hi Jim The reason you were having the extra line is that you are dimensioning the data arrays to bigger than the amount of data actually to be used. It takes...
788
Jim
jimk43
Aug 18, 2010 1:21 pm
Hi Samuel, Thank you SO much for this info. I've never done this kind of smoothing before and I was wasting a lot of time looking for things like quadratic ...
789
Jim
jimk43
Aug 18, 2010 3:26 pm
Hi Samuel, I attached a slightly modified version of the program you sent. In this one, I calculated the average and max of each plot. I also plotted them...
790
Rolf
rolfingebrig...
Aug 18, 2010 7:14 pm
Hello, I stumbled across RobotBASIC a month ago, as member of the PICAXE microcontroller forum, and to my delight serial port communication, which I needed,...
791
Samuel
samuelm_robo...
Aug 19, 2010 4:43 am
Hi Jim, A couple of questions: 1. Why is the poly order limited to 5? Is this a programming limitation? I ran 2, 3, 4 and 5, and it seems to only get...
792
samuelm_robotbasic
samuelm_robo...
Aug 19, 2010 5:22 am
Hi Rolfing, Welcome to RB.... I hope you love it and find it useful ALWAYS. I am sorry about some of the limitations and I hope they are not too much of an...
793
Jim
jimk43
Aug 19, 2010 12:59 pm
Hi Samuel, Thanks so much for the insight and the formula for the mPolyFit algorithm. I'm amazed that it's so simple. Do you know if this is equivalent to...
794
Rolf Ingebrigtsen
rolfingebrig...
Aug 19, 2010 4:48 pm
Hi Samuel, thanks a lot for your answer .. As far as I'm concerned, the 800*600 screen size is the most serious limitation so far. Regarding parameter passing...
795
Samuel
samuelm_robo...
Aug 19, 2010 5:11 pm
Hi Jim, Yes it is "simple" since it is just matrix inversion.... but matrix inversion is not really simple and involves a lot of stuff when you do pivoting...
796
Jim
jimk43
Aug 19, 2010 6:24 pm
Hi Samuel, Thanks for the info, it's kind-of what I suspected. Right now I've run the 5th order fit on a number of test cases and it seems to produce a...
797
samuelm_robotbasic
samuelm_robo...
Aug 30, 2010 3:02 am
Here is a little conundrum for you to consider -You have two directories -You know that in each directory there are the exact same files -But one directory has...
798
Jim
jimk43
Oct 5, 2010 12:43 am
Hi Samuel (or anyone that wants to help),I have a question for you.I'm using an accelerometer to measure the acceleration of an elevator door as it closes. It...
799
tlclotus
tlclotus1
Oct 5, 2010 5:34 pm
Good morning Jim, I watched an elevator door once. It started to move therefore I assumed that it accelerated from zero. It stopped accelerating almost ...
800
Jim
jimk43
Oct 5, 2010 9:37 pm
Hi John, The normal elevator door is controlled by a 3-phase AC motor. The speed is controlled at all times. You're right about it accelerating at first, and...
801
Samuel
samuelm_robo...
Oct 7, 2010 6:05 am
Hi Jim, Since you are fitting a curve through the a(t) data then you can Integrate the resulting Polynomial using polynomial integral to get the v(t)+C since...
802
Jeff Ledger
oldbitcollec...
Oct 7, 2010 1:59 pm
Has anyone done any spin code to control a two server "Boe type" robot using the Propeller and RobotBASIC? My son and I are working together with the CSTEM ...
803
Jim
jimk43
Oct 7, 2010 2:16 pm
Hi Samuel, Thank you for taking the time to get back to me on this. We talked earlier about using *mPolyFit *to smooth the velocity data I was measuring with a...
804
Samuel
samuelm_robo...
Oct 7, 2010 3:58 pm
Hi Jeff, Funny you should ask..... we have just finished publishing our new book Enhancing The Pololu 3pi With RobotBASIC (see link below) This book tackles...
805
Samuel
samuelm_robo...
Oct 7, 2010 4:16 pm
Hi Jim, Maybe an order of 3 or 4 since Acc data is very noisy also INTEGRATION seems to compound errors and frustrates results. I THINK the polynomial approach...
806
David
robots42
Oct 7, 2010 4:49 pm
There is a video link from a Parallax Forum so probably the code is there as well. Sorry can't remember where right now. maybe it is the one below Also...
807
rob@...
superglue99x
Oct 13, 2010 1:04 am
Hello Sam, Just a note through this channel to let you know I have been receiving and replying to your email. If you don't get anything, email me via a ...
808
rob@...
superglue99x
Oct 14, 2010 8:06 pm
Hello Sam, ... -Rob...
809
samuelm_robotbasic
samuelm_robo...
Oct 20, 2010 12:24 pm
Hi All, A new book "Enhancing The Pololu 3pi With RobotBASIC" (dead tree version <http://www.amazon.com/Enhancing-Pololu-RobotBASIC-John-Blankenship/dp/1\ ...
810
Jim
jimk43
Oct 29, 2010 4:50 pm
I've been using RB for a long time, and I love it! Two questions: 1. In the reference manual, I can't find any references as to how to construct a subroutine...
811
Samuel
samuelm_robo...
Oct 30, 2010 4:20 am
Hi Jim, If you go to the "Flow Control Statements" section in the Help file and then scroll down a little to the entry about Sub...
812
Jim
jimk43
Oct 30, 2010 3:42 pm
Hi Sam, Thanks for taking the time to write a great example. Especially the notes. I think this is exactly what I was looking for. It's great to be able to ...
813
Samuel
samuelm_robo...
Oct 30, 2010 4:35 pm
Hi Jim, ... Correct..... ... No ...maybe one day I will implement user defined functions. For now they are user define subroutines. But with the xxxx__Result...
814
Jim
jimk43
Oct 30, 2010 5:00 pm
Hi Sam, I will probably never take the time to read the whole help manual from cover to cover. I'm always looking for instant gratification [?]. . . I spent...
