Developments in technology and the marketplace now make it possible for embedded systems to communicate in local Ethernet networks as well as on the Internet. Network communications can make an embedded system more powerful and easier to monitor and control. Ethernet solves the problem of remote communication with the embedded application. Challenges like application monitoring, control, diagnostics and data logging can all be accomplished from a remote, centralized location. With the ability to access the application remotely, corporations can eliminate the need to send a service person to the application and thus save labor time and money. The presented system enables Ethernet connectivity to the digital and analog signals in the industries so that they can be accessed from internet. This system use Atmega328p microcontroller to store the source code, web pages. An Ethernet controller chip, ENC 28J60 is used to handle the communication and is interfaced with the host microcontroller using SPI pins. There are several I/O pins available at the microcontroller which are used to interface with the relays, opto-isolator for controlling the industrial processes.
Atmega328p, Ethernet controller ENC 28J60, SPI, relays
