Not sure if someone allready mentionde this one :
As-easy-as wake-up screen app for Android tablets. just install, let it auto start and it will wake up your screen if you get near your screen.
- it can start any app on boot of the tablet, including Homey
- You can also have a videostream from your camera (not tested, but hop eit wil work work with the stream-function of the ONVIF camera app
