Script for taking a picture and downloading it to the computer - Script Writing - CHDK Forum
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Script for taking a picture and downloading it to the computer

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Offline r0xx

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Script for taking a picture and downloading it to the computer
« on: 06 / August / 2015, 08:22:51 »
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Hello

We have 8 PowerShot A2600 here and want to have a script which can be executed from a Computer/Laptop and does the following 2 things:

1.) Take a picture with all cameras at the same time
2.) Download the pictures back to the computer

An image will be taken every about 2 minutes so the speed after the picture has been taken doesn't really matter...
What matters more is that all the cameras are released at the same time.

Is there a script like this? If not, how can I get this to run?
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Offline waterwingz

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Re: Script for taking a picture and downloading it to the computer
« Reply #1 on: 06 / August / 2015, 08:40:54 »
You probably want to start here :  CHDK Links : Multiple Camera Rigs.   Pay particular attention to anything about chdktptp and the various forum thread links down at the bottom.
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Ported :   A1200    SD940   G10    Powershot N    G16
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Offline r0xx

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Re: Script for taking a picture and downloading it to the computer
« Reply #2 on: 06 / August / 2015, 10:03:46 »
Ok thanks alot!
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Offline cdg

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Re: Script for taking a picture and downloading it to the computer
« Reply #3 on: 27 / August / 2015, 21:11:20 »
Hi Waterwingz:
     How could i just download last 5 pictures instead of all the pictures in my camera,i am now using CHDKPTP.
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Offline waterwingz

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Re: Script for taking a picture and downloading it to the computer
« Reply #4 on: 27 / August / 2015, 21:50:07 »
Quote from: cdg on 27 / August / 2015, 21:11:20
Hi Waterwingz:
     How could i just download last 5 pictures instead of all the pictures in my camera,i am now using CHDKPTP.
reyalp is the chdkptp author and expert.  I suspect his answer might be that it's possible to do if you can write a Lua script that runs on the PC side and scrubs the camera directory file names looking for the highest numbers in the IMG_nnnn.JPG files.  Not simple unfortunately but technically possible.
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Ported :   A1200    SD940   G10    Powershot N    G16
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Offline reyalp

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Re: Script for taking a picture and downloading it to the computer
« Reply #5 on: 27 / August / 2015, 22:08:18 »
If you are using multicam.lua, use the mc:download_images function with lastimg=5

Note this will fail if the image counter has reset within the last 5 images.

The imdl CLI command also supports this, with -last=5
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Offline cdg

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Re: Script for taking a picture and downloading it to the computer
« Reply #6 on: 28 / August / 2015, 00:24:00 »
Waterwingz:
    Thank you!!
Reyalp:
    Gald to see you again!!
    i find those two functions in the multicam.lua,  mc:download_images(opts) and  cmds.getlastimg(),but i did not find something like lastimg=5 that i could set the number.
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Offline reyalp

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Re: Script for taking a picture and downloading it to the computer
« Reply #7 on: 28 / August / 2015, 01:09:01 »
Quote from: cdg on 28 / August / 2015, 00:24:00
    i find those two functions in the multicam.lua,  mc:download_images(opts) and  cmds.getlastimg(),but i did not find something like lastimg=5 that i could set the number.
!mc:download_images({lastimg=5})
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Offline cdg

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Re: Script for taking a picture and downloading it to the computer
« Reply #8 on: 31 / August / 2015, 03:00:21 »
Thank you！！！！！ :lol :lol
And sorry i have question again
Is there a way to tell how many cameras have been connected to CHDKPTP ?
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Offline reyalp

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Re: Script for taking a picture and downloading it to the computer
« Reply #9 on: 31 / August / 2015, 16:33:19 »
Quote from: cdg on 31 / August / 2015, 03:00:21
Is there a way to tell how many cameras have been connected to CHDKPTP ?
You can use mc:list_all() to see all the cameras multicam thinks it's connected to.

If you just want to know the number you could use something like !print(#mc.cams)

Neither of these check the actual connection status, so if a camera crashed it would still be included.
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