If you want to live stream your (Foscam) camera(s) via Hdashboard do the following:
Add a videostream card on your dashboard:
Enter the url link of your camera, for instance: rtsp://user:password@ipadress:88/videoMain
Where user and password are the login credentials of your camera.
In this case the RTSP port is 88, enter the IPadress followed by the port: xxx.xxx.xxx.xx:88
You can find/set your RTSP port by logging in to your camera via a browser:
Not all camera's support RTSP, like mine, but adding the ONVIF port also worked for me :)
Kind regards,
Henk.