Mixly Block Category - Variables

From Microduino Wiki
Revision as of 23:05, 27 February 2017 by Sonny (talk)
(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)
Jump to: navigation, search

A variable is a place to store a piece of data. It has a name, a value, and a type. To access the variable simple use the variable name.

  • Name - The name or label of that specific variable. Variables are named instances of a Data Type.
  • Data Type - There are different data types. Such as integers, floats & doubles (decimals), boolean (true or false), and custom ones. Variables are an instance of a data type.
  • Value - Is the stored value of of the Data Type which is referenced under the Variable Name.


In code the format is usually in this format:

Data_Type Variable_Name = Value;


Example:

int some_variable_name = 5;

  • Data Type = int
  • Name = some_variable
  • Value = 5

This means there is a variable that is named some_variable of Data Type int that contains the value 5.


Read more here: https://www.arduino.cc/en/Tutorial/Variables

Declare Variable

A variable is a way of naming and storing a value for later use by the program, such as data from a sensor or an intermediate value used in a calculation.


Read more here (: https://www.arduino.cc/en/Reference/VariableDeclaration

After Declaring a Variable

After declaring a variable enables new blocks for that variable.

Assign Value

Assigns a value to the variable that was declared.

  • Value - Stores this into the variable. Should be of the same Data Type or problems may occur.


Read more here: https://www.arduino.cc/en/Tutorial/Variables

Access Value

Returns the value stored in the variable. The return will be of the Data Type the variable is.


Read more here: https://www.arduino.cc/en/Tutorial/Variables