Serial.readString()
Descrição
Serial.readString() lê caracteres do buffer serial e os move para uma String. A função termina se ocorre time-out (ver setTimeout()).
A função Serial.readString() é herdada da classe Stream.
Sintaxe
Serial.readString()
Parâmetros
- Serial: objeto porta serial. Veja a lista de portas seriais disponíveis em cada placa no Serial - Página principal
Retorna
Uma String() lida do buffer serial
Código de Exemplo
void setup() {
Serial.begin(9600); // opens serial port, sets data rate to 9600 bps
}
void loop() {
// check if data is available
if (Serial.available() > 0) {
// read the incoming string:
String incomingString = Serial.readString();
// prints the received data
Serial.print("I received: ");
Serial.println(incomingString);
}
}
- Type "HELLO" on Serial Monitor and click Send button:
8
Serial.println("Hello World!");
Message (Enter to send message to 'Arduino Uno' on 'COM15')
New Line
9600 baud
- The result on Serial Monitor:
8
Serial.println("Hello World!");
Message (Enter to send message to 'Arduino Uno' on 'COM15')
New Line
9600 baud
I received: HELLO
※ Notas e Advertências:
- Serial.readString() may read a single incoming string in multiple times (resulting in multiple fragments). To read a single string at one time, use Serial.readStringUntil() with delimiter instead.
- Serial functions are not only used for the communication between an Arduino board and Serial Monitor of Arduino IDE but also used for the communication between:
- An Arduino board and other Arduino board
- An Arduino board and other sensors/devices
- An Arduino board and computer (any Serial software on computer)
Ver Também
- Linguagem : Arduino - Serial
- Linguagem : Serial.available()
- Linguagem : Serial.availableForWrite()
- Linguagem : Serial.begin()
- Linguagem : Serial.end()
- Linguagem : Serial.find()
- Linguagem : Serial.findUntil()
- Linguagem : Serial.flush()
- Linguagem : Serial.getTimeout()
- Linguagem : if(Serial)
- Linguagem : Serial.parseFloat()
- Linguagem : Serial.parseInt()
- Linguagem : Serial.peek()
- Linguagem : Serial.print()
- Linguagem : Serial.println()
- Linguagem : Serial.read()
- Linguagem : Serial.readBytes()
- Linguagem : Serial.readBytesUntil()
- Linguagem : Serial.readStringUntil()
- Linguagem : serialEvent()
- Linguagem : Serial.setTimeout()
- Linguagem : Serial.write()
※ ARDUINO BUY RECOMMENDATION
| Arduino UNO R3 | |
| Arduino Starter Kit |
Disclosure: Some links in this section are Amazon affiliate links. If you make a purchase through these links, we may earn a commission at no extra cost to you.
Additionally, some links direct to products from our own brand, DIYables .
Additionally, some links direct to products from our own brand, DIYables .