Since smartphones typically have better camera sensors than webcams, you might be able to use an Android phone as either a webcam or a network camera using apps like DroidCam, Alfred etc.
Do not buy Canon: You can't use your $6,299.00 Camera as a Webcam. That will be $5/month (video by Louis Rossmann, discussion on HackerNews)
DIY Dashcam using Raspberry Pi Zero W
Last updated 1 month ago