building usb-remote-cable

n8hawk

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

Microfunguy

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

n8hawk

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

Microfunguy

n8hawk
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.

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

astro

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.

holeepassion

astro
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

PhyrePhoX

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.

n8hawk

just wanted to show you the result.
everything works (and looks) fine. 😁
torch cost about 3€.

http://www.bilder-hochladen.net/files/5cqx-1-jpg.html

greetz,
tim

Microfunguy

n8hawk
just wanted to show you the result.
everything works (and looks) fine. 😁
torch cost about 3€.

http://www.bilder-hochladen.net/files/5cqx-1-jpg.html

Looks good !

Cheaper than buying a switch and battery 😀

David

a710is

this is and has been my remote shutter right from the beginning 😁
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 😁 . the batteries were pretty drained for the flashlight to work but as a shutter there's no problem.

jetzt

So here is my version,
I made 2 wires out of a usb-cable ( 😁)
and then i soldered a small switch and a ~~[1.5V (!!)]~~2.8 so almost 3V* Battery into a SUB-D-Connector.
On the other side there is a small intput where i can connect a relay to control my camera with a microcontroller.
--(First use of this construction: Automatic 360° Panoramea shooting machine)--
*Sorry, was already very dark, but today I took the voltmeter and it showed 2.84 V on the pins in idle mode.

n8hawk

@a710is: that looks quite strange! 😁
but as long as it works...
@jetzt: what exact battery did u use? how do you want to build ur 360-degree-photomachine? i dont see the connection between this and the remotecable.

greetz,
tim

a710is

here it is next to a DVD hole 😀
it's not really photogenic :lol , these dark macro pics exagerate its imperfections.

jetzt

@ n8hawk:
My 360° Machine works like this:
turn camera on, connect microcontroller with usb remote, and start program on microcontroller.
This controller turns the camera with an old stepper motor between tripod and camera.
Then it uses the remote and shoots again. And so on until the full circle is done...

velarpinch

Thought I'd share my USB cable-release:

Uses a magnetic switch from a security door, in order to avoid having to touch anything touching the camera.

GrAnd

Found business offer of IR controlled usb remote for CHDK 😀
May be useful for KAP.
http://www.gentles.ltd.uk/gentled/chdk.htm

Barney Fife

Deleted

jetzt

Shouldn't be really a problem to do this, I think you need only basic electronic skills to do something like that,
right now I do it with my old unused Lego RCX Microcontroller and a small Voltage regulator.
But I'm sure that can be done with only a small rc5 receiver.

Right now I have other things to do: holydays end tomorrow, school is waiting for me 🙁

Barney Fife

Deleted

rhen84

Witch switch should I use in the remote cable?

- Switch what close the curcuit when I push the button or
- Switch what close the curcuit when I push the button and hold closed til I push again or
- Switch what close the curcuit for a moment only?

whitch is the best for the remote cable?