components
Hardware Components
Arduino UNO
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Ethernet Shield
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Relay module
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lamp cord set
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breadboard
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jumper wires
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details
Ethernet shield
The Arduino Ethernet shield connects your Arduino to the internet in a simple way. Just mount this module onto your Arduino board, connect it to your network with an RJ45 cable and follow a few simple steps to start controlling your projects through the web.
Pin usage
When the Arduino is connected to an Ethernet shield, you can’t use Digital pins from 10 to 13, because they are being used in order to establish a communication between the Arduino and the Ethernet shield.
Relay module
A relay is an electrically operated switch. It means that it can be turned on or off, letting the current going through or not.
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