Category of devices

• Dimmer and Light
• Temperature and climate control
• Entertainment
• Security
• House
• Fire
• Kid
• Old aged
• Camera
• Door
• Window
• Phony systems
• Garden & agricultural
• Lawn mover
• Water sprinkler
• Home appliances  & utilities
• Coffee maker
• Smart egg tray
• Cleaning
• Controller
• Amazon Echo 
• Health and fitness