Switchable M/F USB cable, possibly useful for remote trigger

artfd

« on: 19 / November / 2018, 23:59:38 »

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I think I may have found a easy to use switch to trigger the Remote Shutter function in CHDK. On Amazon I found something described as
"Male to Female USB Cable with ON/OFF Switch - Easy Start/Reboot for Raspberry Pi & Arduino"
Theoretically, connecting this between the USB power output of a USB battery pack and the regular USB cable that connects to whatever camera you are using should give a power-on pulse using the built-in switch in the cable.
No soldering, monkeying with USB wires, or making/breaking the power connection is necessary with this cable.

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artfd

Re: Switchable M/F USB cable, possibly useful for remote trigger

« Reply #1 on: 24 / November / 2018, 15:08:41 »

Testing the above item: It is designed more as a power supply cord than a quick on/off switch. The switch is substantial & requires some force to engage and then disengage. It does work to trigger my SD780 to take a photo after the remote opinions were configured. I would not want to do this to copy an entire book. My fingers would definitely hurt after a few dozen key presses.

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waterwingz

12045

Re: Switchable M/F USB cable, possibly useful for remote trigger

« Reply #2 on: 24 / November / 2018, 15:18:39 »

Quote from: artfd on 24 / November / 2018, 15:08:41

Testing the above item: It is designed more as a power supply cord than a quick on/off switch. The switch is substantial & requires some force to engage and then disengage. It does work to trigger my SD780 to take a photo after the remote opinions were configured. I would not want to do this to copy an entire book. My fingers would definitely hurt after a few dozen key presses.

Thanks for the report - I was pretty sure it would work fine when I googled for the search string you supplied. Getting the right USB plug size for the cameras (usually USB mini-B 5 pin) without resorting to adapter cables is a challenge though.

And quite frankly, most of this cables do not use "momentary contact" switches so pressing once to focus and then again to release and shoot can get tiring.

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Ported : A1200 SD940 G10 Powershot N G16