building usb-remote-cable - Hotwire! Hardware Mods, Accessories and Insights - CHDK Forum
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building usb-remote-cable

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Offline n8hawk

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building usb-remote-cable
« on: 11 / January / 2008, 11:51:24 »
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hi there!
recently i discovered the new options in the actual chdk-releases.
i would like to build a remote-usb-control.
thats why i am interested in your remotes.
the one shown http://translate.google.com/translate?client=tmpg&hl=de&u=http://ewavr.nm.ru/chdk/remote.htm&langpair=ru|en seems to work.
can s.o. tell me what kind of batteries are working?
i would like to use a little keychainlamp and replace the lamp by the usbcable.
would this work?
perhaps s.o. can post a picture of his usb-remote.

greetz,
Tim
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Offline Microfunguy

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Re: building usb-remote-cable
« Reply #1 on: 11 / January / 2008, 11:58:30 »
I know someone has used a camera pistol-grip and fitted a CR123 lithium battery inside it.

The current required is negligible so any battery device that provides no more than 4.8V will be OK.

Just make sure the red wire in the USB cable connects (via a switch) to battery +ve.


David
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Offline n8hawk

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Re: building usb-remote-cable
« Reply #2 on: 11 / January / 2008, 15:26:09 »
i found e.g. this keychain-led-torch:
http://www.pearl.de/product.jsp?pdid=PE7478&catid=5630
it uses 3 AG13 = LR44 = A76 = 357 = L1154 batteries.
http://portal.gs-shop.de/200/cgi-bin/portal.dll?AnbieterID=287&bnr=10359
i would try to replace the led with the usb-cable.
could this work?
what 3V-coin-cell could work? the cr2032 mentioned in the original description is more powerful than the lower ones used in flat-style led keychain storches?
just found this http://www.genius-versand.de/shop/product_info.php?ad=pr&products_id=19269

greetz,
tim
« Last Edit: 11 / January / 2008, 15:48:49 by n8hawk »
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Offline Microfunguy

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Re: building usb-remote-cable
« Reply #3 on: 12 / January / 2008, 07:51:32 »
Quote from: n8hawk on 11 / January / 2008, 15:26:09
i found e.g. this keychain-led-torch:

could this work?

Yes, that should be OK ... just make sure you identify +ve side of battery-pack.

Quote
just found this http://www.genius-versand.de/shop/product_info.php?ad=pr&products_id=19269


Not sure what the 1.5V battery is for, that will not work.

You will be OK if you can wire it just to switch the 3V to the USB leads.


David
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Offline astro

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Re: building usb-remote-cable
« Reply #4 on: 12 / January / 2008, 12:04:02 »
If you're feeling gutsy, I found making a wireless remote control not too difficult. 

I had seen the instructions Fingalo had posted for his wireless setup.  I couldn't find the hardware.  Instead, I stopped at the toy store and picked up a $20 remote controlled car.  Specifically found one which took AA batteries because I didn't want to deal with recharging issues.  When I took the car apart, I found everything was embedded on one circuit board.  Plus, the voltage going to the motors was just under 5 volts (4.5v and 3v, roughly).  I wired one set of wires that went to the motor to a usb cable and the to the camera.  It works great. 

For something like this, I highly recommend using a multimeter to check the polarity and voltages to make sure everything is in range. 

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Offline holeepassion

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Re: building usb-remote-cable
« Reply #5 on: 12 / January / 2008, 17:27:32 »
Quote from: astro on 12 / January / 2008, 12:04:02
If you're feeling gutsy, I found making a wireless remote control not too difficult. 

I had seen the instructions Fingalo had posted for his wireless setup.  I couldn't find the hardware.  Instead, I stopped at the toy store and picked up a $20 remote controlled car.  Specifically found one which took AA batteries because I didn't want to deal with recharging issues.  When I took the car apart, I found everything was embedded on one circuit board.  Plus, the voltage going to the motors was just under 5 volts (4.5v and 3v, roughly).  I wired one set of wires that went to the motor to a usb cable and the to the camera.  It works great. 

For something like this, I highly recommend using a multimeter to check the polarity and voltages to make sure everything is in range. 



what brand of the remote controlled car is it ? show us what you did so that we could follow exactly to be on the safe side !!!

thanks
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Offline PhyrePhoX

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Re: building usb-remote-cable
« Reply #6 on: 13 / January / 2008, 00:03:16 »
i bought an "electronic dog leash" the other day @ ebay (like 4 euros) and now i noticed this is perfect for remote triggering my camera. so instead of teaching my dog how to behave i will modify it to use on my cam. *yay*
advantage: longer distance than remote controlled car, cheaper, less "modifying", as the "leash" itself is much smaller than a car and be used as is.we'll see.
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Offline n8hawk

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Re: building usb-remote-cable
« Reply #7 on: 13 / January / 2008, 09:39:13 »
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Offline Microfunguy

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Re: building usb-remote-cable
« Reply #8 on: 13 / January / 2008, 11:18:12 »
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Offline a710is

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Re: building usb-remote-cable
« Reply #9 on: 13 / January / 2008, 11:25:28 »
this is and has been my remote shutter right from the beginning :D
2 batteries so 3V and a button there. :)
doesn't look too great with that tape on but it works great and it's really tiny :) . some old pocket flashlight sure came in handy :)

cost: 0 basically. the top part comes from that flashlight, the bottom from a wrecked USB cable, connecting them electrically are a couple of metal wires, all strapped together by tape :D . the batteries were pretty drained for the flashlight to work but as a shutter there's no problem.
« Last Edit: 13 / January / 2008, 11:37:20 by a710is »
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