Introduction to Arduino Series: Chapter 2
Chapter 2: Arduino Board Pins and Components Introduction The Arduino board consists of various pins and components that make it possible to interact with the physical world. Each part of the board has a specific role — from reading inputs like sensors to controlling outputs like LEDs and motors. In this chapter, we will focus on the Arduino Uno , which is the most commonly used board for beginners. Understanding these pins and components is essential before building any Arduino project. Microcontroller (The Brain) The microcontroller is the most important component on the Arduino board. It acts as the brain , executing the program (code) that you upload. For the Arduino Uno, the microcontroller is typically: ATmega328P It is responsible for: Processing inputs Running your code Controlling outputs In simple terms: The microcontroller tells the Arduino what to do. Digital Pins (0–13) Digital pins are used for digital input and output . Th...
