USB Hub on Omega

Milan Vuckovic · 22 Dec 2015, 13:58

I was wondering if we can connect USB hub to Omega if we need 1 or 2 extra USB ports ?

Kit Bishop · 22 Dec 2015, 20:49

From a quick test - seems to be OK.
4 port USB hub plugged in to Omega. USB memory stick plugged into each port on hub. All USB memory sticks visible in /dev and can be mounted and accessed.

Milan Vuckovic · 22 Dec 2015, 21:05

@Kit-Bishop Thank you for testing, and answering my question.

Boken Lin · 23 Dec 2015, 01:29

@Milan-Vuckovic Yup, we will also be releasing a USB-host dock in the future that comes with 4 USB ports.

Milan Vuckovic · 23 Dec 2015, 09:00

@Boken-Lin Great! Thanks!

Hiro AsO · 26 Dec 2015, 13:14

USB Hub + 2 WebCam(640x480) streaming.

26 Dec 2015, 20:53

What exactly do you have setup there?

Hiro AsO · 27 Dec 2015, 01:26

@Rudy-Trujillo
If you have two webcam, both are already tested with mjpg_streamer on Omega.
1: Just plug a Hub and Cams.
2: Check /dev

# ls /dev/video*
/dev/video0
/dev/video1

3: Start two mjpg_streamer

mjpg_streamer -i "./input_uvc.so -f 30 -r 640x480 -d /dev/video0" -o "./output_http.so -w ./www -p 8080" -b

mjpg_streamer -i "./input_uvc.so -f 30 -r 640x480 -d /dev/video1" -o "./output_http.so -w ./www -p 8081" -b

4: put HTML file /www/webcam/doubleview.html

<html>
  <body>
<script language="JavaScript">
document.write('<img src="' + window.location.protocol + '//' + window.location.hostname + ':8080/?action=stream" width="320" height="240">' );
</script>
<script language="JavaScript">
document.write('<img src="' + window.location.protocol + '//' + window.location.hostname + ':8081/?action=stream" width="320" height="240">' );
</script>
  </body>
</html>

5: Open http://[ OmegaIP ]/webcam/doubleview.html .

27 Dec 2015, 02:30

Ok, you have two cameras plugged into the hub which then plugs into the Omega via the USB port. And the software setup is what you show. Pretty nice setup will have to try this out. Thanks

Hiro AsO · 27 Dec 2015, 02:38

@Rudy-Trujillo Welcome to the stereo camera world

Ken Conrad · 29 Dec 2015, 20:49

@Hiro-AsO can you advise the model name of your smaller webcam in the photo - I need that size for my projects. Thanks.

Hiro AsO · 30 Dec 2015, 00:15

@Ken-Conrad It is Japanese maker ELECOM's UCAM-DLY300TA .

[71400.810000] usb 1-1: new high-speed USB device number 2 using ehci-platform
[71401.000000] uvcvideo: Found UVC 1.00 device UCAM-DLY300TA (056e:7008)
[71401.020000] input: UCAM-DLY300TA as /devices/platform/ehci-platform/usb1/1-1/1-1:1.0/input/input0

Unfortunately this one was already discontinued...

Vagelis Fragkos · 31 Dec 2015, 11:49

I did the above and connected a Microsoft 720p HD camera.
I changed the stream to 1280x720 and auto-started the mjpg stream.

Just edit /etc/rc.local and paste this:

cat rc.local
echo before-mjpg
/usr/bin/mjpg_streamer -i "/usr/lib/input_uvc.so -f 30 -r 1280x720 -d /dev/video0" -o "./output_http.so -w ./www -p 8080" -b

echo after-mjpg
exit 0

Then reboot and then you have it!

31 Dec 2015, 17:20

Was excited bout your post and was wondering have you recorded any video for community viewing or is this not at that stage?
I am trying to get to a point where I can start connecting one extender at the edge of wifi from house to a vehicle on the street which will house another wifi omega adding external antenna if needed. From there will be getting into an area of no expertise getting video from "a camera" mounted on vehicle omega.
I have heard that motion detection is not available on the omega but and again no idea how but opencv does this somehow. As you can see this may or may not work out but sounds like fun and the learning curve is steep.
Thanks for your post.

14 Jan 2016, 21:59

Need some help with this can you trace the steps to setting up the Webcam? In my case the /dev/video is missing. Keeping in mind this is all new to me.