Arduino programming language can be divided in three main parts: functions, values (variables and constants), and structure. For controlling the Arduino board and performing computations. The …

Discover all the Arduino variable types you'll use in your Program. For each data type, get to know the limitations and best practices.

This tutorial will cover the basic data types available in Arduino, what they're typically used for, and will highlight the effects of using different data types on the size and performance speed of your programs.

The type of a variable determines how much space it occupies in the storage and how the bit pattern stored is interpreted. The following table provides all the data types that you will use during Arduino …

Aug 31, 2025 · Choosing the correct Arduino type of variable is important because it affects memory usage and how the data behaves. This guide explains what variables are, how to declare them, and …

Declaring a variable means defining its type, and optionally, setting an initial value (initializing the variable). Variables do not have to be initialized (assigned a value) when they are declared, but it is …

You should select the variable data type accordingly. The most important data types and their value ranges for creating Arduino codes are listed below:

Data types define how information is stored in variables and manipulated in memory. This tutorial will provide an overview of the main Arduino data types and demonstrate how you can declare them with …

Comprehensive guide to understanding Arduino data types for efficient programming.

A variable is a place in memory that can hold a value. Must specify the type of value that can be put in the variable ⇒ “Declare” the variable first time it is mentioned.