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Remote triggering voltage source

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Offline chucrut

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Remote triggering voltage source
« on: 18 / October / 2010, 22:21:10 »
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Hi,
I'm using my camera with a 3V power adapter. I would like to know if I can use the same 3V to trigger the camera, instead of using an external battery, like here:
http://chdk.wikia.com/wiki/USB_Remote_Cable

Many thanks!.
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Offline fe50

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Re: Remote triggering voltage source
« Reply #1 on: 19 / October / 2010, 00:58:53 »
Hello & welcome chucrut !

Quote from: chucrut on 18 / October / 2010, 22:21:10
I'm using my camera with a 3V power adapter. I would like to know if I can use the same 3V to trigger the camera, instead of using an external battery, like here:
http://chdk.wikia.com/wiki/USB_Remote_Cable
Depends on your camera; since you didn't mention your camera model - have a look to the CameraFeatures page or just try it...
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Offline Pauls9

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Re: Remote triggering voltage source
« Reply #2 on: 19 / October / 2010, 04:10:14 »
Assuming 3V is sufficient to trigger the camera, is there a possibility that connecting the USB pins to the camera's supply could lead to damage?
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Offline zeno

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Re: Remote triggering voltage source
« Reply #3 on: 19 / October / 2010, 04:22:17 »
No chance. The usb circuitry inside the camera is protective and takes virtually no current from the power pins. It merely detects that a voltage has been applied.

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Offline whoever

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Re: Remote triggering voltage source
« Reply #4 on: 19 / October / 2010, 12:27:44 »
Quote from: zeno on 19 / October / 2010, 04:22:17
No chance. The usb circuitry inside the camera is protective and takes virtually no current from the power pins. It merely detects that a voltage has been applied.
Except perhaps in the case of inversed polarity. It is unlikely that this condition, impossible in normal operation, has been considered by the designers.
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Offline beta

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Re: Remote triggering voltage source
« Reply #5 on: 21 / February / 2011, 02:32:41 »
Hi,
I am using CHDK for Canon Powershot SD 600 camera. I want to remotely trigger the camera; its very easy task but i am unable to manage this simple task using CHDK. I had made remote cable following the remote trigger cable tips of chd Then I used SDM same setup is working... It is take pictures using same cable.... I am unable to fix the problem... Pls help me in this regard....
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Offline Microfunguy

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Re: Remote triggering voltage source
« Reply #6 on: 21 / February / 2011, 05:21:12 »
I don't use CHDK, but in one of the menus you have to enable the USB remote switch.

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