Section 3.2 - Arduino Digital Pins
What are all those ports?
In this lesson, you’ll learn how to use Arduino’s digital pins to control an LED, starting with an introduction to digital pins and their purpose. Through slides, you’ll explore how these pins work as “power” or on/off switches, sending signals that can turn an LED on or off. You’ll also locate the digital pins on the Arduino and understand their layout. Next, you’ll dive into the importance of the negative or GND (ground) connection, explaining its role in completing the circuit and why it’s essential. In TinkerCAD, you’ll wire the LED from your previous circuit to a digital pin on the Arduino, visually linking the components and showing how they interact. You’ll also be introduced to the breadboard, a helpful tool that functions like a “giant extension cord” for circuits, allowing you to easily connect multiple components. This setup lets you control the LED through the Arduino, setting the stage for more complex projects as you gain confidence with digital pins and breadboards.