It there any USB video capture card meet the blow requirements.
1) support pi.
2) support mobile browser (android, ios) view the live video.

I have 3 questions. 1. Which Python's framework can be a video stream server via wifi. Just display video, not record it. 2. Is there any way to add two or more cameras in pi? 3. Can use a extend cable (I want to put the pi on the 3rd floor, and the camera on the 1st floor) to connect with pi and ca...

Thanks all, I'll try some leds first.

My room has a light with a physical switch. now I want to add a relay to control this light with my phone through wifi to via pi. Is there any idea to do this, the physical switch cooperate with the pi, and the pi can detect the light state. The light state to display on my phone's app. Does my idea...