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-   -   Pixy to labview (http://www.chiefdelphi.com/forums/showthread.php?t=153846)

brackencloud 17-01-2017 22:17

Pixy to labview
 
My team decided to buy a Pixy camera this year, and I'm supposed to figure out how to use it for competition this season (I was told this yesterday, and have been messing with the ball mostly for learning).
I have a couple questions about it, that I haven't found answers to, And so far with my playing and testing have run into a few issues.
1) can i get both X and Y from the Pixy at the same time, and can i do so with more objects than just the largest identified?(From what i read, it sounds like i can't, but a couple threads did make it seem possible)
2) Does anyone know how to correct the issue where every time i start the Pixy, it seems to be calibrated slightly differently where it doesn't quite recognize the same object I taught it.
3) Does anyone have recommendations for using the pixy to vision target to hang the gear? I haven't been able to get it to work on the reflective tape on polycarb with the bright green light ring we used last year for a different targeting program.
Any help, ideas, or links to such things would be greatly appreciated.

Alan Anderson 22-01-2017 01:36

Re: Pixy to labview
 
If you use the simple analog output method of getting information from the camera, you can choose either X or Y, not both. You will only get the result for the largest detected object.

If you choose a full digital communication method, you will get data on X and Y location and size for as many objects as are detected (up to a configurable maximum number). You'll have to parse the data into a usable form.

brackencloud 25-01-2017 17:06

Re: Pixy to labview
 
Thank you. i got Analog working so i can detect a singular object, but as i am trying to use it t target the gear, i want to use the full digital you mentioned. Sadly, i cannot seem to find how to do so on the Porting guide wiki.


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