USB is a serial bus standard for connecting computer systems with external devices, which is widely used in information communication products such as personal computers and mobile devices.
Breakout boards take small sensors, chips and components and make them easy to use with your Raspberry Pi, Metro, Feather, Arduino or whatever platform you like most!
Home automation refers to building automation in the home, also known as smart home. Home automation system can control lights, windows, temperature and humidity, etc.
