F-Stop and Shutter speed controls do not operate

[GoogleCodeExporter]

What steps will reproduce the problem?
1.Connect the Arduino interface to Canon T3i camera.
2.Try to set F-Stop and Shutter speed from Yanis Android app.
3.

What is the expected output? What do you see instead?
The camera settings do not change according to app settings, the camera 
controls will change the settings.  The capture button/function on the app does 
work correctly, as does the time lapse function.

What version of the product are you using? On what operating system?
The camera is a Canon T3i, the Arduino sketch is YAWEOS.pde V1.0, with PTP2.0.

Please provide any additional information below.
Occasionally the capture function quits working, requiring a power-cycle of the 
Arduino.

Original issue reported on code.google.com by phillssm...@gmail.com on 21 Apr 2012 at 11:04

[GoogleCodeExporter]

Very strange. Maybe canon has updated it's PTP command set. I will try to get 
my hands on a T3i and do some testing. 

Original comment by manis...@gmail.com on 23 Apr 2012 at 6:55

[GoogleCodeExporter]

Thanks for the response.

I have done some further testing (I only finished the build Saturday 
4-21-12),and have come up with some more information.

I re-installed the Yanis EOS app, in case there had been updates.  The F-Stop 
setting seems to work pretty well now, and the WB, Time lapse, and capture 
functions are working well.  The Shutter speed and ISO are still not 
functional. The ISO did change a couple of times, but even after shutting down 
the camera and app and restarting, they still do not work.

I have tried setting the shutter speed and ISO with the camera in Auto, Av, Tv, 
and manual modes.  There was no change in result.

I'm curious if there is a communication termination signal that needs to be 
used, similar to closing a DDE session?  I also would like to check the Canon 
PTP commands.  Where did you find the PTP command set for Canon?  I am not a 
programmer (just some ladder logic and VBA), but I wouldn't mind giving it a 
try- I've found that working through practical problems is how I learn best.

Original comment by phillssm...@gmail.com on 23 Apr 2012 at 7:20

[GoogleCodeExporter]

Also,

Since I have a T31, possibly I can upload some information from the camera and 
post it, if that will be of use.

--Phil

Original comment by phillssm...@gmail.com on 23 Apr 2012 at 7:31

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Working on the updated command set. Its a minor fix actually..

Original comment by manis...@gmail.com on 13 Jun 2012 at 8:16

• Changed state: Accepted