Arduino is a single board microcontroller board with interactive features to create variety of products. It is having an open source architecture with the support of Atmel Atmega microcontrollers. A user-friendly C based programming software also available open source, in which a huge collection of device libraries are available either inbuilt or ready to download.
Different models of Arduino are available in the international and online market from which Arduino UNO is one of the most popular and most used one. A variety of IO devices are also available to create and automate almost everything in the digital world, but cheapest and efficient way. Arduino boards are supporting all popular communication protocols like I2C, RS232 and USB which are on board and RS485, TCP/IP, Wi-Fi, Bluetooth etc. with the help of add-on board.