How to Use Arduino to Turn on a Lamp Remotely, Directly From Your IPhone/Android

amanda

Published April 24, 2019

6 UCC

Original source (new tab)

Components

Hardware components

Arduino Uno（W5100）

x 1

ENC28J60 Ethernet card

x 1

Relay 220 V 10 A

x 1

Ethernet cable

x 1

Software Apps and online services

Arduino - Arduino IDE

x 1

Library for ENC28J60

x 1

Sketch code lamp relay + + WebServer

x 1

Project description

Step 1: What Is a Relay? A relay, from the external point of view is a simple switch capable of passing current or not. This phenomenon occurs through a physical principle, based on the coupling magnet that is generated through a passage a small excitation current, which is supplied by the Arduino. There are two configurations with regard to the relay: 1. NO (Normally open) 2. NC (Normally closed) These two configurations differ only in the code you need to write in Arduino. The first configuration, in the case of switching off the relay, no current is passed (the circuit is open) and that…

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