Si Te gusta electronics and programming You're probably interested in knowing all the necessary details about el Arduino operation and handlingwhich is a board based on a hardware microcontroller and FOSS. This board has an integrated circuit through which instructions can be programmed.
It should be mentioned that all these instructions are written on this platform through a data programming language which allows the user to establish programs that interact with said electronic circuitsIt's important to keep in mind that Arduino consists of a board that has all the necessary elements to be able to connect input/output pins of a microcontroller.
It is important that when working on this platform, all the necessary details are known about its programmingThat's how we're going to teach you the different ones here. types of data handled in ArduinoTo do this, carefully follow everything we will teach you below in the post.
What is data in Arduino programming and what is it used for?
When writing a program with Arduino, it is necessary to take into account several basic elements in its structure, such as the following:
- Processing directives: They are responsible for controlling the conversion of the program to machine code by the compiler.
- Programs or functions: It is a set of instructions; there can be one or more, but in any case there must always be one defined as the main one by including the void loop call.
- Instructions: They indicate how the Arduinos should behave at all times.
- Comments: They allow you to write what each line of the program means.
Bearing this in mind, it is important to keep in mind what they are data types in Arduino, in this case the Arduinos tend to be highly independent of the data, since in their cores there exists the arithmetic logic unit known as ALU, and it is responsible for executing simple operations in its memory. In this case, a the arithmetic logic unit It doesn't really matter to him what it represents to the user in terms of data types, whether it text, integer or floating-point values, or even programming code.
It's important to keep in mind that the entire context for operations comes from the compiler and the user, who ultimately defines the values and provides instructions to the compiler. In programming terms, a computer data type, or type, is an attribute of data that They tell the computer what kind of data it will be working with. This way you can impose restrictions on data, such as the values that which ones can be taken and what operations can be performed.
List of all data types used in Arduino project programming
Currently, the most commonly used data in Arduino includes integers, floating-point numbers, negatively signed numbers, states (boolean), and alphanumeric strings.
With this in mind, here we'll show you some of the most commonly used data in C++ so you can keep them in mind:
Byte
It is responsible for storing a 8-bit numeric value without decimalsIt offers a range between 0 and 255 without a sign.
Int (integer)
They are considered a type of primary data that are responsible for storing 16-bit numeric values are decimal included in the range 32,767 to -32,768. In the case of integer (int) variables they can exceed its maximum or minimum value as a result of an operation.
Long (long whole)
The extended type numeric variable format “long” It refers to integers of the type 32 bits = 4 bytes, without decimals that are within the range -2147483648 to 2147483647.
Float (decimals)
This is a data format of the type “Floating point” or “Float” As it is also known, it applies to numbers with decimals. Floating-point numbers have a higher resolution than decimal numbers. 32 bits which occupies a range between 3.4028235E+38 and -3.4028235E+38.
In the case of floating-point numbers, they are not exact numbers; they can produce strange results in comparisonsIn this case, floating-point mathematical calculations are also much slower than those of integers, so their use should be avoided if possible. In the case of Arduino's double data type is equal to that of float.
In this case, floating-point constants are used to facilitate code readability; even if they are not used, the compiler will not generate an error and the code will execute normally.
- 0 is evaluated as 10.
- 34E5 or 67e-12
To better understand all of this, floating-point representation is a form of scientific notation used in... GPU, FPU, CPU, Among other things, these notations allow for the compact and efficient representation of extremely large and small rational numbers, and also make it possible to perform arithmetic operations. Regarding the The standard for floating-point representations is IEEE 754.
Character
A char represents a character which occupies 1 byte of memoryIn this case, single characters are represented with single quotes, and for multiple characters or strings They are presented with double quotes. It is important to remember that characters are stored as numbers using ASCII encodingwhich means that it is possible to perform arithmetic operations with the characters.
Boolean
In the case of Boolean data, they only have two true and false values, each boolean It is characterized by occupying one byte of memory.
Data types in Visualino
In Visualino, data types can be referenced in both local and global variables, and the following data types are available:
- Int,
- Bytes.
- Long.
- thong.
- Float.
Type conversions (Casting)
Finally, we found castings, which allow us to force data changes, and the following can be used for this purpose:
- Tank.
- Int.
- Long.
- Float.
- Byte.
- word.
