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The article is a tutorial on how to control 16 relay through Arduino microcontroller with Ethernet shield W5100. Hello, I'm going to share again with another project that helps many of you to solve ...

Digital pins of Arduino cannot supply the amount of current needed to turn on a normal 5v relay. Besides we are using 12v relay in this project. Vin pin of Arduino cannot easily supply this much ...

You can read the state of a button using Arduino and a few lines of code ... pin if you want to and you can even add extra circuitry to turn ON an LED or use a relay to power up different equipments.

In this quick Arduino tutorial I will explain how you can control a relay using the Arduino Board, one 1K and one 10K resistors, 1 BC547 transistor, one 6V or 12V relay, one 1N4007 diode and a 12V fan ...

The article is a tutorial on how to control 16 relay through Arduino microcontroller with Ethernet shield W5100. Hello, I'm going to share again with another project that helps many of you to solve ...