Back sleeping monitor
I can’t sleep in this weather (37°C), so, I quickly hacked camera streamer & camera player with auto discovery. I did it because we’d like to monitor if our baby is back sleeping or not when we put her into a bed.
What this auto discovery means? Just put both devices on the same network and they’ll find each other. No need to configure IP address of the player, etc.
Camera player
- Repository camera-player
Functionality
- Announces
_cameraplayer._udpservice via Avahi (host) - Launches
omxplayer, which is playing whatever is send to the port5000via UDP
Hardware
- Raspberry Pi 3B+
- Raspberry 7" touch display
Camera streamer
- Repository camera-streamer
Functionality
- Discovers
_cameraplayer._udpservice via Zeroconf (Python) - Launches
raspivid, which then starts sending video stream to the discovered IP address & port
Hardware
- Raspberry Pi 3B+
- Raspberry Camera V2
Hardware notes
You don’t have to use RPi 3B+ for camera streamer. I used it, because I had it at hand. It can be easily replaced with Zero W for example.
It’s summer, lot of light, Camera V2 is enough now. During winter, when it’s too dark quiet soon, I’d recommend to replace it with IR cut camera (this one for example). Because of this feature:
Embedded removable IR-CUT filter, eliminating colour distortion in the daylight
Which means that you can use it with any light conditions.
And finally, here’s the picture 
