Ethernet is a family of computer networking technologies commonly used in local area networks (LAN), metropolitan area networks (MAN) and wide area networks (WAN).

It was commercially introduced in 1980 and first standardized in 1983 as IEEE 802.3.

Ethernet has since been refined to support higher bit rates, a greater number of nodes, and longer link distances, but retains much backward compatibility.


Ethernet is widely used in homes and industry, and interworks well with Wi-Fi.

The Internet Protocol is commonly carried over Ethernet and so it is considered one of the key technologies that make up the Internet.

Arduino Ethernet Shield NTP time

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ethernet shield

One of the standard niceties of Data Acquisition systems with PCs is the ability to use  the PC timestamp.

Arduinos do not have a built in RTC timer or easy access for an internet time clock update.

One solution for this is an ethernet shield.

If you are using an Arduino for data logging, you can access the NTP time via an ethernet shield.

Here is a simple example on getting the NTP time.

An added benefit on some shields is an additional SD card for storage.

This works fine alone on the Uno, but comes close to maxing out the 32K of memory.

This shield is also compatible with the Arduino Mega2560 with 256K of memory.

 

Tutorials

Here are some helpful tutorials on some the systems available with Scada123 to try on your own.

You can view videos at:     Youtube Channel Scada LLC

Sort through Topics on the left Menu "Tutorial Menu"

Click on one the Topic Tags that interest you.

License : All programs in the tutorial section are free software. You can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful,  but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more details.