SoftwareSerial implementation

libraries/SoftwareSerial/examples/SoftwareSerialExample/SoftwareSerialExample.ino

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+/*
+  Software serial multple serial test
+
+ Receives from the hardware serial, sends to software serial.
+ Receives from software serial, sends to hardware serial.
+
+ The circuit:
+ * RX is digital pin 10 (connect to TX of other device)
+ * TX is digital pin 11 (connect to RX of other device)
+
+ created back in the mists of time
+ modified 25 May 2012
+ by Tom Igoe
+ based on Mikal Hart's example
+
+ This example code is in the public domain.
+
+ */
+#include <SoftwareSerial.h>
+
+SoftwareSerial mySerial(10, 11); // RX, TX
+
+void setup() {
+  // Open serial communications and wait for port to open:
+  Serial.begin(57600);
+  while (!Serial) {
+    ; // wait for serial port to connect. Needed for native USB port only
+  }
+
+
+  Serial.println("Goodnight moon!");
+
+  // set the data rate for the SoftwareSerial port
+  mySerial.begin(4800);
+  mySerial.println("Hello, world?");
+}
+
+void loop() { // run over and over
+  if (mySerial.available()) {
+    Serial.write(mySerial.read());
+  }
+  if (Serial.available()) {
+    mySerial.write(Serial.read());
+  }
+}
+

libraries/SoftwareSerial/examples/TwoPortReceive/TwoPortReceive.ino

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+/*
+  Software serial multple serial test
+
+ Receives from the two software serial ports,
+ sends to the hardware serial port.
+
+ In order to listen on a software port, you call port.listen().
+ When using two software serial ports, you have to switch ports
+ by listen()ing on each one in turn. Pick a logical time to switch
+ ports, like the end of an expected transmission, or when the
+ buffer is empty. This example switches ports when there is nothing
+ more to read from a port
+
+ The circuit:
+ Two devices which communicate serially are needed.
+ * First serial device's TX attached to digital pin 10(RX), RX to pin 11(TX)
+ * Second serial device's TX attached to digital pin 8(RX), RX to pin 9(TX)
+
+
+ created 18 Apr. 2011
+ modified 19 March 2016
+ by Tom Igoe
+ based on Mikal Hart's twoPortRXExample
+
+ This example code is in the public domain.
+
+ */
+
+#include <SoftwareSerial.h>
+// software serial #1: RX = digital pin 10, TX = digital pin 11
+SoftwareSerial portOne(10, 11);
+
+// software serial #2: RX = digital pin 8, TX = digital pin 9
+// on the Mega, use other pins instead, since 8 and 9 don't work on the Mega
+SoftwareSerial portTwo(8, 9);
+
+void setup() {
+  // Open serial communications and wait for port to open:
+  Serial.begin(9600);
+  while (!Serial) {
+    ; // wait for serial port to connect. Needed for native USB port only
+  }
+
+
+  // Start each software serial port
+  portOne.begin(9600);
+  portTwo.begin(9600);
+}
+
+void loop() {
+  // By default, the last intialized port is listening.
+  // when you want to listen on a port, explicitly select it:
+  portOne.listen();
+  Serial.println("Data from port one:");
+  // while there is data coming in, read it
+  // and send to the hardware serial port:
+  while (portOne.available() > 0) {
+    char inByte = portOne.read();
+    Serial.write(inByte);
+  }
+
+  // blank line to separate data from the two ports:
+  Serial.println();
+
+  // Now listen on the second port
+  portTwo.listen();
+  // while there is data coming in, read it
+  // and send to the hardware serial port:
+  Serial.println("Data from port two:");
+  while (portTwo.available() > 0) {
+    char inByte = portTwo.read();
+    Serial.write(inByte);
+  }
+
+  // blank line to separate data from the two ports:
+  Serial.println();
+}

libraries/SoftwareSerial/keywords.txt

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+#######################################
+# Syntax Coloring Map for SoftwareSerial
+# (formerly NewSoftSerial)
+#######################################
+
+#######################################
+# Datatypes (KEYWORD1)
+#######################################
+
+SoftwareSerial	KEYWORD1
+
+#######################################
+# Methods and Functions (KEYWORD2)
+#######################################
+
+begin	KEYWORD2
+end	KEYWORD2
+read	KEYWORD2
+write	KEYWORD2
+available	KEYWORD2
+isListening	KEYWORD2
+overflow	KEYWORD2
+flush	KEYWORD2
+listen	KEYWORD2
+peek	KEYWORD2
+
+#######################################
+# Constants (LITERAL1)
+#######################################
+

libraries/SoftwareSerial/library.properties

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+name=SoftwareSerial
+version=1.0
+author=Arduino, Armin van der Togt
+maintainer=stm32duino
+sentence=Enables serial communication on any digital pin.
+paragraph=The SoftwareSerial library has been developed to allow serial communication on any digital pin of the board, using software to replicate the functionality of the hardware UART. It is possible to have multiple software serial ports. 
+category=Communication
+url=http://www.arduino.cc/en/Reference/SoftwareSerial
+architectures=stm32
+