Duet Web Control Webcam Surveillance (Fixed)

[CRPerryJr]

I had an issue where my TOP 201 Network Webcam utilized the following URI to display a "snapshot" of what it was looking at:
"http://ipofcamera/webcapture.jpg?command=snap&channel=0"
But the image would not display when setting a "Webcam Update Interval" of anything greater than "0". I found that the TOP 201 does not like adding an additional "&" sign to the URI, which is what the interface.js script was doing.
I modified the following code in interface.js from:

[[language]]
var newURL = settings.webcamURL;
		if (newURL.indexOf("?") == -1) {
			newURL += "?dummy=" + Math.random();
		} else {
			newURL += "&dummy=" + Math.random();
		}
		$("#img_webcam").attr("src", newURL);

```to:

[[language]]
var newURL = settings.webcamURL;
if (newURL.indexOf("?") != -1) {
newURL += "?dummy=" + Math.random();
} else {
newURL += "&dummy=" + Math.random();
}
$("#img_webcam").attr("src", newURL);

The change is in the if statement replacing the "==" to a "!=".

Hope this helps someone else with this issue.

[goldentuna]

where is this interface.js file - how do I find it .. that needs to be edited?

[Jackal]

@goldentuna:

where is this interface.js file - how do I find it .. that needs to be edited?

https://github.com/chrishamm/DuetWebControl
Download the project, edit the file then build with the build.sh script and upload to your DuetWifi.

[CRPerryJr]

@Jackal:

@goldentuna:

where is this interface.js file - how do I find it .. that needs to be edited?

https://github.com/chrishamm/DuetWebControl
Download the project, edit the file then build with the build.sh script and upload to your DuetWifi.

Thanks Jackal! I only have the Duet .85, so I wasn't sure how to update that file for the Duet WIFI.

[Jackal]

When you run the build.sh, it will generate 2 files
.zip one is for Duet 0.8.5 and .bin is for Duet Wifi
The update instruction is here: https://duet3d.com/wiki/Updating_Duet_Web_Control

[hamel]

Sorry, I am having this same issue. Could you please help point me in the right area for figuring out how to "build"? I would love to get this camera to work. I made the change in the bin file you said to make and saved it, but I don't know how to run the build.sh file to compile it. Then I would assume I upload to dwc. Sorry, I am new and am almost at my witts end with this little camera.

[chrishamm]

Can you tell me what camera you are using and what exactly is happening? DWC 1.15 and newer provides a few work-arounds for IP cameras that don't support extra HTTP keys and you could embed the whole IP camera website as well by enabling the appropriate option on the settings page.

I still don't see how the provided JS code resolves problems though - it's actually a bad idea to add a second '?' char to the HTTP link.

[hamel]

I am using the ELP IP1881 camera, which as far as I know is identical to the TOP 201. I can't get a stream to the DWC. Last night I did find that I could get the still to update with the http qualifier turned off, but it is super poor quality and choppy as it will not let me update faster than 1 time per second. Do you have any ideas? Also, I would love it if you could point me in a direction to learn how to compile the files to make a new bin. I know cpp basics but not to the extent of paths and compiling multiple files to make a .bin. I guess it doesn't really apply to this camera issue anymore though.

In short, I would like to see if we can make this little IP camera work as well as my old tablet does with DWC. It updated very fast and seemed more like a stream.