Arduino - SoftwareSerialListen

Arduino

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SoftwareSerial: listen()

Description

Enables the selected software serial port to listen. Only one software port can listen at a time.

Syntax

mySerial.listen()

Parameters

mySerial:the name of the instance to listen

Returns

None

Example

#include <SoftwareSerial.h>

// software serial : TX = digital pin 2, RX = digital pin 3
SoftwareSerial portOne(2, 3);

// software serial : TX = digital pin 4, RX = digital pin 5
SoftwareSerial portTwo(4, 5);

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!");
}

}

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