Hello,
I need your oppinion regarding my project http://www.grozeaion.com/electronics/high-speed-photography/134-wired-remote-control-for-digital-camera.html
What do you think about it? What will you need from such a remote?
Well done! You've obviously put an enormous amount of work into this.
I like the high level of documentation, and the fact that you allow the download of all Eagle files and firmware. That's what Open Source is all about, the fearless exchange of ideas.
Now, I'm not into photography, so I have no interest in purchasing one of these from you. But if I DID want one, it would be way cheaper to buy it from you than to make all the parts, even though the documentation to do that is provided.
Do you plan on trying to sell these as a product? If you were, you will need to arrange your website such that the details of the device's engineering is on a separate link from the main page, with the main page devoted to selling the device.
I am, however, curious about something.
Why use 5V power in a portable, handheld device like this? using all 3.3V components would reduce power and allow the use of 3.7V batteries like a LiPo, which can be charged in place without the bother of having to remove a bunch of AA batteries.
Well, the selling was not in my mind, but now that i'm thinking i have parts to build about 9-10 and will also help me to raise some money for the next variant.
The problem is that the case will be cut and drilled by hand, so the aesthetic part is not so great 
Regarding the 5V, it allows me o use arduino on 16MHz, i can keep the compatibility with the sensors (they are made some time ago) and last but not least
those batteries are available everywhere, so if you run out of "juice" you can buy batteries at any store.
PS: Even if is a .com site (when i bought the domain my head was in clouds) i don't use the site to sell anything and i can't because i have permissions from
some joomla developers to use there software free of charge as long as the site will remain noncommercial.
I'm both a pro photographer and an EE so I can appreciate this from both sides. Very impressive.
What will you need from such a remote?
For time lapse I would like to be able to set the following
Elapsed real time, ie take photos over 4 hours or even days
Resultant clip time, ie a 30sec video clip
Frame rate of clip
This would make life simpler in the field because you don't have to calc all this crap yourself.
And maybe a start time so it can be set to run at 5am tomorrow so I don't have to get out of bed 
This would mean having an RTC though.
Also for long time lapses would the battery last? May need to sleep in between photos.
Rob
"aesthetic part"
I have seen folks get very nice results using this
Design the enclosure once, then have these guys make the copies for you, all nice & repeatable.
The other thing to look into is a StepDrill, or Unibit like this
these things are great for making holes in plastic, you don't get the ugly tearouts that you see with normal angle tipped drill bits.
@ Greynomad
Elapsed real time, ie take photos over 4 hours or even days
I use 6x1.2V @ 2600mA rechargeable batteries and with these in triggered mode (both sensors used) the power last for two days non stop
Resultant clip time, ie a 30sec video clip
Frame rate of clip
I have to do some reading on this problem. If you have some links please share them.
And maybe a start time so it can be set to run at 5am tomorrow so I don't have to get out of bed smiley This would mean having an RTC though.
A RTC at this moment is not possible but i will keep this in mind for the next version, but is possible to add a count down so that user can set a start time for the "shooting".
@ CrossRoads
I made the holes using a knife and for the cuts I've use a paper knife XD, these are my tools.
Regarding the 3D printing is a good but expensive solution to make one or maybe 2-3 cases (even ten) 
Thank you for sharing yours ideas, please continue
Need to get yourself a cordless drill, makes a lot of things so much easier.
$30, 9.6V
http://www.homedepot.com/h_d1/N-5yc1v/R-100646505/h_d2/ProductDisplay?langId=-1&storeId=10051&catalogId=10053
$40, 12V
http://www.homedepot.com/h_d1/N-5yc1v/R-202516371/h_d2/ProductDisplay?langId=-1&storeId=10051&catalogId=10053
Hi,
In V3R2 i've added a countdown timer of 100hours to delay the bulb, time lapse and clip functions.
I've also added a derived function from time lapse called Clip cu create TL clips and also TL HDR clips.
Have a look and tell me what do you think