Back to Blog
arduino variable

What is Variable in Arduino

In short What is Variable in Arduino

  • A variable is a named unit of data that may be assigned a value.
  • variable is a named location in a memory where a program can manipulate the data. This location is used to hold the value of the variable.
  • The value of the C variable may get change in the program.
  • variable might be belonging to any of the data type like int, float, char etc.

What is Variable in Arduino 1


  • Variable name must begin with letter.
  • Variables are case sensitive
  • They can be constructed with digits, letters.
  • No special symbols are allowed other than underscore.
  • sum, height ,name ,age are some examples for variable name

Example :

int led=5;

(int data type led is defined as 5 ) in entire program led is know for its value 5.

int age= 26;

(int data type age is defined as 26 ) in entire program age is know for its value 26.


now age has 28 in its value. but age is name of variable in memory until program execution.

variable in arduino training



See Video Lecture



Share this post

Leave a Reply

This site uses Akismet to reduce spam. Learn how your comment data is processed.

Back to Blog