Ethernet Shield W5100 & Control External Devices with Relay

Ethernet Shield W5100 & Control External Devices with Relay
components
Hardware Components
Arduino UNO R3
X 1
ethernet shield W5100
X 1
Resistor 220 k Ohms
X 1
LED ( Any color ) as Oupu
X 1
Solder Less Bread Board
X 1
Jumper Wires
X 1
2, or 4 channel Relay 5v Module with Isolator/Optocoupler
X 1
Optional Components
details

ethernet4.PNG

This Ethernet shiled library does not come with DNS support out of the box meaning we cannot used to access the website we need by its simple URL (like http://www.14core.com). We need to have access the site though an IP address. For instance 192.168.10.100, 200,188,122,145 and you can actually access.

documents
Code
Arduino code

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