Multi-Room music setup with Pi
Turned to my central heating system
Monitor the temperature, humidity, noise, and light level for any room
Monitor the room temperature and relative humidity
A basic USB camera can be used to detect motion in a room.
Monitor Room Temperature With a Raspberry Pi
Control a Roomba vacuum using voice commands
Automation system for a baby nursery
Set an automatic room heating cum humidifier system.
Bathroom occupancy detector with an ATtiny85 controller
Alarm clock that wirelessly controls a fan flight
Bathroom and conference room occupancy detection
Giant pushbutton that posts to a Slack chat room
Monitor the environment in your study room with an Intel Edison
Build a multi-room audio system with a Raspberry Pi
Automatically control your bathroom's lights and fans