If you like electronics and programming, you will be interested to learn all the necessary details about the use and operation of Arduino. Arduino is a board based on a hardware and open-source software microcontroller. This card has an integrated circuit that can be used to write commands.

It should be noted that all these instructions are written on this platform using a data programming language that allows the user to create programs that interact with the specified electronic circuits. Note that the Arduino consists of a circuit board that contains all the necessary elements to connect the input/output pins of the microcontroller.

It is important that when you work on this platform, you know all the necessary details about your planning. We will therefore show you here the different types of data that are processed in ArduinoTo do this, follow the details of everything we will teach you later in the post.

What is the data in the Arduino programming and what is it used for?

If you want to write a program using Arduino, you have to take into account different kinds of basic elements in the structure of the program, such as B. the following:

  • Treatment guidelines : They are responsible for checking the conversion of a program to machine code by the compiler.
  • Programs or functions : It is a set of statements, there may be one or more, but in all cases there must always be one defined as the main statement including a blank loop.
  • Instructions : They show how Arduino’s have to behave at all times.
  • Comments : They allow you to write what each line of the program means.

In this context, it is important to remember what this kind of data is in the Arduino. Arduinos in this case are usually very independent of data, because their kernels have a logic processing unit called ALU which is responsible for performing simple operations in their memory. In this case, the arithmetic logic unit, which has no value, gives the user data types – text, whole or floating point numbers, or even program code.

Don’t forget that all the context of the operations comes from the compiler and the user, who ultimately defines the values and gives instructions to the compiler. In the programming language, a computer type or data type is a characteristic of the data they tell the computer about the type of data they need to process. This allows you to impose restrictions on the data, such as B. Values , and actions that can be performed.

List of all types of data used in the programming of the Arduinoproject .

A list of all types of data used in the programming of the Arduino project.

Currently, the most commonly used data in Arduino are integers, floating point numbers, negative drawn numbers, (Boolean) states, and alphanumeric sequences.

With this in mind, we will show you some of the most commonly used data in C++ so that you can remember them:


It is responsible for storing an 8-bit numeric value without decimals, it offers a range from 0 to 255 without digits.

Int (integer)

They are treated as a kind of primary data that stores 16-digit numeric values with decimal precision between 32,767 and -32,768. For whole (int)-variables they may exceed their maximum or minimum value as a result of the operation.

Long (long integer)

The extended numeric variable type of the long format refers to the 32 bit integer type 32 bits = 4 bytes, no decimals ranging from -2147483648 to 2147483647.

Float (in decimal places)

This is a floating point or data format, as it is also called, it applies to numbers with decimals. Floating point numbers have a higher resolution than floating point numbers. 32 bits that cover the range from 3.4028235E + 38 to -3.4028235E + 38.

In the case of floating point numbers they are not exact numbers, they can give strange results when compared. In this case the floating point mathematics is also much slower than the whole mathematics, so it should be avoided if possible. In the case of Arduino, the double datatype float.

In this case the floating point constants are used to make the code easier to read. Even if they are not used, the compiler does not generate an error and works correctly:

  • 0 is valued at 10.
  • 34E5 or 67e-12

To better understand this, the floating point representation is a form of scientific notation used in GPUs, FPUs, CPUs, etc. which can be used to represent very large and small rational numbers in a very compact and efficient way and which can be used to perform arithmetical operations. The floating point display standard is identical to the IEE 754 standard.

Ball (character)

A diagram represents a character that takes up 1 byte of memory. In this case, single characters are represented by single apostrophes, while multiple characters or character strings are represented by double apostrophes. It is important to remember that characters are stored as numbers in ASCII encoding, which means that you can perform arithmetic operations on the characters.

Boolean value

With boolean data there are only two values true and false, each boolean value is characterized by the fact that it takes up one byte of memory.

Data types in Visual

In visualino you can refer to data types in local and global variables:

  • В,
  • Bytes.
  • That’s a long time.
  • Cord.
  • Swimmer.

Type conversion (cast iron)

Finally, we find a mould that we can use to force a data change.

  • The bullet.
  • В.
  • That’s a long time.
  • Swimmer.
  • Byte.
  • Word.

If you have any questions, leave them in the comments. We will contact you as soon as possible and it will also be a great help to other members of the community. Thank you so much!

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