May I know which is the best to use on a Raspbery Pi USB slot: a LOGITECH 15MP 1080P HD WEBCAM C920, a LOGITECH HD Pro Webcam C910 or a LOGITECH Webcam C525 8MP HD? I need this info because I am not sure which one is good for a home automation system. Thanks
Here is somebody using the C920 with a Raspberry Pi.
Here is somebody using the C910 with a Raspberry Pi.
Here is somebody using the C525 with a Raspberry Pi.
General advice, do not use a USB webcam on a Raspberry Pi. Find a suitable camera that can use the dedicated camera port, it will take a huge load off the CPU. See here.
A Raspberry Pi Camera Module V2 would be a good option, as they don't require as much power (both electrical and processing power), and they have a smaller footprint than most USB webcams.