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Ethernet is the leading wired standard for networking as it enables to connect a very large number of computers, microcontrollers and other computer-based equipment to one another.
With just a network switch, many different devices can easily communicate with one another with Ethernet, allowing different devices and equipment to be accessed remotely and this also provides a cost-effective and reliable means of remote control and monitoring.
For microcontrollers which don't have a built-in Ethernet peripheral, The ENC28J60 serial Ethernet chip can easily be used by any microcontroller with an SPI interface to provide Ethernet capability to the application.