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Introduction With the Ethernet version of the Arduino Portenta Vision Shield it is possible to connect the board to the Internet using an Ethernet cable. In this tutorial we will go through useful ...

The article is a tutorial on how to control 16 relay through Arduino microcontroller with Ethernet shield W5100.

A PHP script on the Arduino does all the heavy lifting and with the great Bildr tutorial on getting the Ethernet shield up and running, [Chris] was off to the races.

There is also a “Cloud Flash” feature to program networked-enabled devices like the Arduino Ethernet or Arduino & Ethernet Shield.

Arduino announced a single-pair Ethernet adapter board for its Uno R4 single-board microcontroller at Electronica this morning.

The problem with using it along with Arduino-based gadgets is that you then need to use something like an Ethernet shield to provide the network connection.