ARDUINO TUTORIAL #4

NAMING VARIABLES IN ARDUINO

Function:

Variables are used to store values, making them easier to reuse and modify throughout the program.

MAIN VARIABLE TYPES

THREE MAIN VARIABLE TYPES:

int

Used to store integers (whole numbers).

String

Used to store strings of characters (text).

float

Used to store decimal numbers (floating-point numbers).

EXAMPLES

// String variable

String name = "abc";

// Integer variable

int number = 67;

// Floating-point variable

float decimal = 67.67;

IMPORTANT NOTES

IMPORTANT:

• Global variables should be declared at the beginning of the program, before the void setup() function.