[Dprglist] New Raspberry Pi Zero W

[Ron Grant]

Hello Doug/All,

Thanks, will be looking for the PI 0 W.

On the presentation:

Will and I should be able to produce a short presentation for the 2D robot arm where I implemented Will's refinement/interpolation equations that calculate hand positions from a limited number of camera observed hand positions.

For now I created a simulation in Processing (Arduino like - java environment running on PC) where the stored camera snapshot positions are shown in gray. The desired hand location in shown as moving red spot and the arm is shown in green in this 10 second you tube clip.  https://www.youtube.com/watch?v=_EWVLfdsz-s  Will suggested a simple iteration process to further refine the calculations.

Will's page handwritten equations were perfect, as presented, spare one "typo" (there is another word for hand written mistake, but I refuse to look it up.)

I am going to port the robot arm code to Raspberry PI, which should be very straight forward since I used Processing and a web cam on PC and Processing is supported on PI.

Ron









-----Original Message-----
From: DPRG Secretary <secretary at dprg.org>
To: Ron Grant <deltagraph at aol.com>; dprglist <dprglist at lists.dprg.org>
Sent: Wed, Mar 1, 2017 9:48 am
Subject: Re: [Dprglist] New Raspberry Pi Zero W




Ron,
    I suspect that these will not show up for awhile (~month?). Microcenter (one of my spam buddies) would be the best local source.
 
    BTW, great presentation at last meeting. We need to get it up to DPRGclips.
Regards,
Doug P.

 

From: Ron Grant 
Sent: Tuesday, February 28, 2017 4:12 PM
To: paradug at gmail.com ; dprglist at lists.dprg.org 
Subject: Re: [Dprglist] New Raspberry Pi Zero W

 
Nice, Doug.

When can a person get one without having to show up somewhere and get into a fist fight trying to get one or two.

Really happy with video frame capture rates on PI 3 using its camera.
Sadly camera enumeration not supported for OpenGL library in Processing (Java Environment) so video res is stuck at 320x200 for the moment on 8 MP camera. Not that low res capture is a bad thing.

I was pleased that GLSL is supported in Processing, am able to use GPU shader based edge detection at like 90 fps. Now need to get edge finder, e.g. Hough algorithmm, up. Of course I am sure OpenCV would handle this stuff but takes some of the fun away.

Ron


 
 
 
-----Original Message-----
From: paradug <paradug at gmail.com>
To: dprglist <dprglist at lists.dprg.org>
Sent: Tue, Feb 28, 2017 3:26 pm
Subject: [Dprglist] New Raspberry Pi Zero W




In case you missed it, a new Raspberry Pi Zero board has been announced, the Raspberry Pi Zero W. It is a Raspberry Pi Zero with Wi-Fi and Bluetooth.


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