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power up

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Offline klippone

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power up
« on: 01 / April / 2014, 01:39:17 »
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I would like to power up my A2500 using CHDK PTP script without physical touch to the camera. Is that possible?
Or any other tricks to do that?
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Offline reyalp

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Re: power up
« Reply #1 on: 01 / April / 2014, 02:04:30 »
Quote from: klippone on 01 / April / 2014, 01:39:17
I would like to power up my A2500 using CHDK PTP script without physical touch to the camera. Is that possible?
Or any other tricks to do that?
No. When the camera is off nothing is running*.

To power on by remote control, your options are:
1) Mechanical control of the power button with a servo or something like that.
2) Keep the power button held down, and control an external power supply.
3) Hack out the power button and replace it with your own electrical control.

* For completeness some very old had something that could detect if there was power applied to the USB port and power on in response.
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Offline klippone

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Re: power up
« Reply #2 on: 02 / April / 2014, 04:08:25 »
Mechanical control seems to be reliable option.
About 2): If we keep power button down and control camera to shut down and wake it up, sometimes object jams into middle position. Camera is not able to recover.
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Offline reyalp

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Re: power up
« Reply #3 on: 02 / April / 2014, 16:03:44 »
Quote from: klippone on 02 / April / 2014, 04:08:25
Mechanical control seems to be reliable option.
About 2): If we keep power button down and control camera to shut down and wake it up, sometimes object jams into middle position. Camera is not able to recover.
This may be the same issue as http://chdk.setepontos.com/index.php?topic=650.msg111687#msg111687
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