Serial.availableForWrite()

Descripción

Obtiene el número de bytes (caracteres) disponibles para la escritura en el buffer serie sin bloquear la operación de escritura.

Sintaxis

Serial.availableForWrite()

Solo Arduino Mega:

Serial1.availableForWrite()

Serial2.availableForWrite()

Serial3.availableForWrite()

Parámetros

  • Ninguno

Ejemplo

String myString = "Welcome to ArduinoGetStarted.com!\n"; void setup() { Serial.begin(9600); // opens serial port, sets data rate to 9600 bps int wlen = Serial.availableForWrite(); // prints the received data Serial.print("TX buffer size: "); Serial.println(wlen); } void loop() { // check if Tx buffer is enough to write the string if (Serial.availableForWrite() > myString.length()) { // prints the string Serial.print(myString); delay(1000); } }
  • The result on Serial Monitor:
COM6
Send
TX buffer size: 63 Welcome to ArduinoGetStarted.com! Welcome to ArduinoGetStarted.com! Welcome to ArduinoGetStarted.com! Welcome to ArduinoGetStarted.com!
Autoscroll Show timestamp
Clear output
9600 baud  
Newline  

Retornos

  • El número de bytes disponibles para escribir.

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