Comments on: A High-Resolution IP Webcam

By: johnarthur

johnarthur — Mon, 02 Nov 2009 08:02:17 +0000

I’m afraid I haven’t used Unslung, so I can’t comment with much authority, but the process of replacing it with the OpenWRT firmware should be identical to replacing the original firmware.

By: Chris

Chris — Sun, 01 Nov 2009 04:46:25 +0000

Thank you for this great information. I’m looking to purchase a webcam and I was considering the one you mentioned here. I have a nslu2 w/ the unslung firmware installed. do i have to do anything different?

thanks

chris

By: volpoca

volpoca — Sun, 18 Oct 2009 15:22:36 +0000

In /etc/config/network I added:

option gateway 192.168.0.1
option dns 192.168.0.1

and now all works fine.

Thank you again,
Gianpaolo

By: johnarthur

johnarthur — Wed, 07 Oct 2009 07:35:12 +0000

If you can see it locally its working correctly; your problem must be a firewall or DNS name lookup issue. You should look at the error message you get when you try to access it via the internet – does it claim that the address doesn’t exist (name lookup problems) or that it can’t find a server there (firewall problems).

By: volpoca

volpoca — Wed, 07 Oct 2009 07:25:49 +0000

Hi,
I have installed the image “openwrt-nslu2-uvc-webcam2.bin”,
switched to static IP and modified etc/init.d/done (#One camera; run one web page) as follow:

-o “output_http.so -p 9998 -w /webcam_www”\

I can now access the NSLU2 locally with Firefox (http://192.168.0.11:9998)
but access via internet (http://example.no-ip.org:9998) is not possible.
A Linksys wvc54gca ip camera with the same configuration work without problems.

Can you help me?

Thank you and best regards,
Gianpaolo

By: johnarthur

johnarthur — Fri, 26 Jun 2009 21:50:23 +0000

I’m afraid I haven’t looked at this, so I can’t offer anything helpful. I strongly suspect you will need to do it at the host end as the NSLU2 does not have the computational power or time spare to manipulate the JPEGs, even to do something as apparently simple as image inversion.

By: Rico

Rico — Thu, 25 Jun 2009 16:25:53 +0000

Hi johnarthur,
I wonder if you can give me a bit advice on where I can find information about flipping the output of mjpg_streamer. I need to flip the output image/video because the webcam will be mounted on the ceiling which makes the images upside down. I am thinking (actually working on) about flipping the output stream real time with Javascript but then I will have two new problems:
1. Flipping image(s) with js might take up significent computing power on the client machine.
2. I still need to flip the snapshot or video stream if I need to save to record them.

Therefore I think the ideal solution would be to find a way to flip the image(s) before sending through http output.

Regards,
Rico

By: Nelson Neves

Nelson Neves — Tue, 24 Mar 2009 14:44:54 +0000

Slug will always be present in our life, It’s the best piece of equipment that I ever used to learn embedded Linux the old way. I’m also trying new embedded devices but always use Slug with Linux Debian has my test system (porting work/solutions is really quick).

Long live the Slug and the guys that have really good ideas for it, John Arthur, Graham and all of you that have reached this blog! … and probably myself when I have some spare time to make some tutorials

Regards!

By: Graham

Graham — Sat, 21 Mar 2009 09:21:46 +0000

I posted above and was inspired by this work!

I have now managed to run the OpenWrt and the M-JPEG streamer software on a new board that takes only 1 Watt of power, is cheaper than the Slug, and seems perfect for a dedicated Quickcam Pro 9000 controller. I have put up some notes at -
http://www.sunspot.co.uk/Projects/sweexproject.htm
See the “Bifferboard” link
I just used standard OpenWrt drivers. However the use of the “opackages” is a bit more complex so I will put up ready-made driver packages if any reader needs them.

But long live the Slug too!

By: Darren

Darren — Tue, 03 Mar 2009 19:09:26 +0000

Just a footnote to my recent postings…

I was able, install, and configure the latest ‘Kamikaze 8.09′, along with (ultimately) ‘mjpg-streamer’. I did experience an initial roadblock i.e. the NSLU2 booted with a fixed IP address of 192.168.1.1, so I had to work around that. As well, I wasn’t quite sure of which packages to install for the webcam to work again, so I probably overdid the package installs a bit.

I haven’t yet been able to get the *other* stuff running that I wanted, but at least I have the webcam back!