Descripción

Es un tipo de dato que ocupa un byte de memoria y almacena un valor de carácter. Los carácteres literales se escriben con comillas simples: 'A' (para varios carácteres -strings- utiliza dobles comillas "ABC").

De todas maneras los carácteres son almacenados como números. Puedes ver su codificado en la tabla ASCII. Con esto podemos entender que es posible realizar cálculos aritméticos con los carácteres, en este caso se utiliza el valor ASCII del carácter (por ejemplo 'A' + 1 tiene el valor de 66, ya que el valor ASCII de la letra mayúscula A es 65). Mira Serial.println para tener mas información de como son traducidos a números los carácteres.

El tipo de datos char tiene signo. esto significa que codifica números desde -128 hasta 127. Para un dato de un byte (8bits), utiliza el tipo de dato "byte".

Ejemplo

[@ char miChar = 'A';

  char miChar = 65;      // los dos son equivalentes

Mira también

[@ char myChar = 'A';

  char myChar = 65;      // both are equivalent

[@char myChar = 'A';

 char myChar = 65;      // both are equivalent

    
char myChar = 'A';
 [=char myChar = 65;      // both are equivalent

Characters are stored as numbers however. You can see the specific encoding in the ASCII chart. This means that it is possible to do arithmetic on characters, in which the ASCII value of the character is used (e.g. 'A' + 1 has the value 66, since the ASCII value of the capital letter A is 65). See Serial.println reference for more on how characters are translated to numbers.

The char datatype is a signed type, meaning that it encodes numbers from -128 to 127. For an unsigned, one-byte (8 bit) data type, use the byte data type.

The char datatype is a signed type, meaning that it encodes numbers from -127 to 127. For an unsigned, one-byte (8 bit) data type, use the byte data type.

The char datatype is a signed type, meaning that it encodes numbers from -127 to 127. For an unsigned, one-byte (8 bit) data type, use the byte data type.

The char datatype is a signed type, meaning that it encodes numbers from -127 to 127. For an unsigned, one-byte (8 bit) data type, use the !!!byte data type.

• Serial.println

Characters are stored as numbers however. You can see the specific encoding in the ASCII chart. It is also possible to do arithmetic on characters, in which the ASCII value of the character is used (e.g. 'A' + 1 has the value 66, since the ASCII value of the capital letter A is 65). See Serial.println reference for more on how characters are translated to numbers.

Characters are stored as numbers however. You can see the specific encoding in the ASCII chart. It is also possible to do arithmetic on characters, in which the ASCII value of the character is used (e.g. 'A' + 1 has the value 66, since the ASCII value of the capital letter A is 65). See Serial.println? reference for more on how characters are translated to numbers.

Characters are stored as numbers however. You can see the specific encoding in the ASCII chart. It is also possible to do arithmetic on characters, in which the ASCII value of the character is used (e.g. 'A' + 1 has the value 66, since the ASCII value of the capital letter A is 65). See Serial.println? reference for more on how characters are translated to numbers.

The char datatype is a signed type, meaning that it encodes numbers from -127 to 127.

• Println?

Characters are stored as numbers however. You can see the specific encoding in the ASCII chart. It is aslo possible to do arithmetic on characters, in which the ASCII value of the character is used (e.g. 'A' + 1 has the value 66, since the ASCII value of the capital letter A is 65). See the [[Serial.println example for more on how this works.

Characters are stored as numbers however. You can see the specific encoding in the ASCII chart. It is aslo possible to do arithmetic on characters, in which the ASCII value of the character is used (e.g. myChar ='A' + 1 has the value 66, since the ASCII value of the capital letter A is 65).

A data type that takes up 1 byte of memory that stores a character value. Character literals are written in single quotes, like this: 'A' (for multiple characters - strings - use double quotes: "ABC").

Characters are stored as numbers however. You can see the specific encoding in the ASCII chart You can also do arithmetic on characters, in which the ASCII value of the character is used (e.g. 'A' + 1 has the value 66, since the ASCII value of the capital letter A is 65).

See the Serial.prinln example for more on how this works.

Synonymous with type byte in Arduino.

    char myChar = 'A';

See also

• byte
• int
• array

char

A data type that takes up 1 byte of memory that stores a character value. Character literals are written in single quotes, like this: 'A' (for multiple characters - strings - use double quotes: "ABC"). You can do arithmetic on characters, in which the ASCII value of the character is used (e.g. 'A' + 1 has the value 66, since the ASCII value of the capital letter A is 65).

    char var = 'x';

• x - the value (single character) you assign to that variable... ie: a, 4, #, etc.

char

int

Description

A data type that takes up 1 byte of memory that stores a character value.

Example

Parameters

    char var = 'val';

• var - your char variable name
• val - the value (single character) you assign to that variable... ie: a, 4, #, etc.

Reference Home

    char sign = ' ';

A data type that takes up 1 byte of memory that stores a character value.