Reference Language (extended) | Libraries | Comparison | Changes

Language Reference

See the extended reference for more advanced features of the Arduino languages and the libraries page for interfacing with particular types of hardware.

Arduino programs can be divided in three main parts: structure, values (variables and constants), and functions. The Arduino language is based on C/C++.

Structure

setup()
loop()

Control Structures

Further Syntax

; (semicolon)
{} (curly braces)
// (single line comment)
/* */ (multi-line comment)

Arithmetic Operators

Comparison Operators

== (equal to)
!= (not equal to)
< (less than)
> (greater than)
<= (less than or equal to)
>= (greater than or equal to)

Boolean Operators

&& (and)
|| (or)
! (not)

Compound Operators

++ (increment)
-- (decrement)
+= (compound addition)
-= (compound subtraction)
*= (compound multiplication)
/= (compound division)

Variables

Constants

Data Types

Conversion

Functions

Digital I/O

Analog I/O

analogRead()
analogWrite() - PWM

Advanced I/O

Time

Math

min()
max()
abs()
constrain()
map()
pow()
sq()
sqrt()

Trigonometry

sin()
cos()
tan()

Random Numbers

randomSeed()
random()

Communication

Serial

Didn't find something? Check the extended reference or the libraries. Or see the list of community-contributed code.

Página principal Referencia

Correcciones, sugerencias, y nueva documentación deberán ser publicadas en el Foro (castellano) o en el Foro (inglés).

El texto de la referencia de Arduino está publicado bajo la licencia Creative Commons Reconocimiento-Compartir bajo la misma licencia 3.0. Los ejemplos de código de la referencia están liberados al dominio público.

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