[SoftwareSerial]
Description
Enables the selected software serial port to listen. Only one software serial port can listen at a time; data that arrives for other ports will be discarded. Any data already received is discarded during the call to listen() (unless the given instance is already listening).
Syntax
// set up a new serial port SoftwareSerial mySerial = SoftwareSerial(rxPin, txPin); mySerial.listen()
Parameters
mySerial: the name of the instance to listen
Returns
None
Example
#include <SoftwareSerial.h>
// software serial : TX = digital pin 10, RX = digital pin 11
SoftwareSerial portOne(10, 11);
// software serial : TX = digital pin 8, RX = digital pin 9
SoftwareSerial portTwo(8, 9);
void setup()
{
// Start the hardware serial port
Serial.begin(9600);
// Start both software serial ports
portOne.begin(9600);
portTwo.begin(9600);
}
void loop()
{
portOne.listen();
if (portOne.isListening()) {
Serial.println("Port One is listening!");
} else {
Serial.println("Port One is not listening!");
}
if (portTwo.isListening()) {
Serial.println("Port Two is listening!");
} else {
Serial.println("Port Two is not listening!");
}
}See also
- SoftwareSerial()
- SoftwareSerial.begin()
- SoftwareSerial.read()
- SoftwareSerial.print()
- SoftwareSerial.println()
Libraries Reference Home
The text of the 86Duino reference is a modification of the Arduino reference and is licensed under a Creative Commons Attribution-ShareAlike 3.0 License. Code samples in the reference are released into the public domain.
