1.Arduino microcontroller Introduction
Arduio is derived from the Italian open source hardware projects a platfrom that incluedes a with a simple I / O functions of the circuit board and a set of application development environment sofware. Arduino can be used to dovelop interactive products, such as it can be read by a large number of switches and sensor signals, and can control light, motors, and other kinds of physical devices; Arduino can also develop peripheral devices connected to the PC, can on the PC running the software to communicate.