com.pi4j.io.serial

Class SerialPort

java.lang.Object

com.pi4j.io.serial.SerialPort

public class SerialPort
extends Object

Constructor Summary

Constructors

Constructor and Description
SerialPort()

Method Summary

Modifier and Type	Method and Description
static String	getDefaultPort() Get the default serial port for the detected platform/model/board revision.
static String	getDefaultPort(SystemInfo.BoardType board) Get the default serial port for the specified platform/model/board revision.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

SerialPort

public SerialPort()

Method Detail

getDefaultPort

public static String getDefaultPort()
                             throws IOException,
                                    InterruptedException,
                                    UnsupportedBoardType

Get the default serial port for the detected platform/model/board revision.

Returns:

com port device path

Throws:

IOException

InterruptedException

UnsupportedBoardType

getDefaultPort

public static String getDefaultPort(SystemInfo.BoardType board)
                             throws UnsupportedBoardType

Get the default serial port for the specified platform/model/board revision.

Parameters:

board - hardware board type

Returns:

com port device path REF: https://www.raspberrypi.org/documentation/configuration/uart.md By default, only UART0 is enabled. The following table summarises the assignment of the first two UARTs: ---------------------------------------------------------------- Model | first PL011 (UART0) | mini UART ---------------------------------------------------------------- Raspberry Pi Zero primary secondary Raspberry Pi Zero W secondary (Bluetooth) primary Raspberry Pi 1 primary secondary Raspberry Pi 2 primary secondary Raspberry Pi 3 secondary (Bluetooth) primary Raspberry Pi 4 secondary (Bluetooth) primary ---------------------------------------------------------------- Note: the mini UART is disabled by default, whether it is designated primary or secondary UART. Linux devices on Raspberry Pi OS: ---------------------------------------------------------- Linux device Description ---------------------------------------------------------- /dev/ttyS0 mini UART /dev/ttyAMA0 first PL011 (UART0) /dev/serial0 primary UART /dev/serial1 secondary UART ---------------------------------------------------------- Note: /dev/serial0 and /dev/serial1 are symbolic links which point to either /dev/ttyS0 or /dev/ttyAMA0.

Throws:

UnsupportedBoardType