Ethernet Enabled Digital I/O Control in Embedded Systems
N. V. Raja Sekhar Reddy · IOSR Journal of Electronics and Communication Engineering · 2013
This paper presents very simple and economical way to provide Ethernet connectivity to micro controller based embedded systems.This system uses arm7 controller to store the main application source code, web pages and TCP/IP stack which is a vital element of the system software.an Ethernet controller chip,ENC28J60 is used to handle the Ethernet controller chip.ENC28J60 is used to handle the Ethernet communications and is interfaced with the host micro controller using SPI pins.There are several I/O pins available at the micro controller which are used to interface with sensors and relays for monitoring and controlling operations.Now a day, internet has spread worldwide and most of the internet connections use Ethernet as media for data transfer.in industries or in home appliances ,most of the time we need to monitor and control different parameters using micro controllers.Once we enable Ethernet interface to such systems, we can communicate with them remotely over the internet