Visual Studio Serial Port Communication

This article shows how to communicate between Arduino and Visual Studio through COM (UART) port. (1) Arduino will send data to the Visual Studio program: (2) Visual Studio program will send data to Arduino. Arduino receives it, then feed it back to Visual Studio program. Make a program for Arduino. May 16, 2015  This video tutorial shows how we can access the Serial Port on our computer using Visual Studio C# Windows Forms Application. We can use this to establish serial communication between devices such. Mar 10, 2016  Download Serial COM Port Visual Studio C for free. Demo of how to use visual studio for serial communication. Demonstration of using visual c windows forms to create gui for uart serial communication. You will need two usb to ttl converter these can be purchased from ebay for around $6.

  1. Serial Port Visual Studio
  2. Visual Studio Change Port
  3. Serial Port Visual Basic
  4. Visual Studio 2017 Serial Port Communication
  5. Visual Studio Serial Port Communication Software
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Definition

Inheritance
MarshalByRefObjectMarshalByRefObjectMarshalByRefObjectMarshalByRefObject
SerialPortSerialPortSerialPortSerialPort

Serial Port Visual Studio

Examples

The following code example demonstrates the use of the SerialPort class to allow two users to chat from two separate computers connected by a null modem cable. In this example, the users are prompted for the port settings and a username before chatting. Both computers must be executing the program to achieve full functionality of this example.

Remarks

Use this class to control a serial port file resource. This class provides synchronous and event-driven I/O, access to pin and break states, and access to serial driver properties. Additionally, the functionality of this class can be wrapped in an internal Stream object, accessible through the BaseStream property, and passed to classes that wrap or use streams.

The SerialPort class supports the following encodings: ASCIIEncoding, UTF8Encoding, UnicodeEncoding, UTF32Encoding, and any encoding defined in mscorlib.dll where the code page is less than 50000 or the code page is 54936. You can use alternate encodings, but you must use the ReadByte or Write method and perform the encoding yourself.

You use the GetPortNames method to retrieve the valid ports for the current computer.

If a SerialPort object becomes blocked during a read operation, do not abort the thread. Instead, either close the base stream or dispose of the SerialPort object.

Constructors

SerialPort()SerialPort()SerialPort()SerialPort()

Initializes a new instance of the SerialPort class.

SerialPort(IContainer)SerialPort(IContainer)SerialPort(IContainer)SerialPort(IContainer)

Initializes a new instance of the SerialPort class using the specified IContainer object.

SerialPort(String)SerialPort(String)SerialPort(String)SerialPort(String)

Initializes a new instance of the SerialPort class using the specified port name.

SerialPort(String, Int32)SerialPort(String, Int32)SerialPort(String, Int32)SerialPort(String, Int32)

Initializes a new instance of the SerialPort class using the specified port name and baud rate.

SerialPort(String, Int32, Parity)SerialPort(String, Int32, Parity)SerialPort(String, Int32, Parity)SerialPort(String, Int32, Parity)

Initializes a new instance of the SerialPort class using the specified port name, baud rate, and parity bit.

SerialPort(String, Int32, Parity, Int32)SerialPort(String, Int32, Parity, Int32)SerialPort(String, Int32, Parity, Int32)SerialPort(String, Int32, Parity, Int32)

Initializes a new instance of the SerialPort class using the specified port name, baud rate, parity bit, and data bits.

SerialPort(String, Int32, Parity, Int32, StopBits)SerialPort(String, Int32, Parity, Int32, StopBits)SerialPort(String, Int32, Parity, Int32, StopBits)SerialPort(String, Int32, Parity, Int32, StopBits)

Initializes a new instance of the SerialPort class using the specified port name, baud rate, parity bit, data bits, and stop bit.

Fields

InfiniteTimeoutInfiniteTimeoutInfiniteTimeoutInfiniteTimeout

Indicates that no time-out should occur.

Properties

BaseStreamBaseStreamBaseStreamBaseStream

Gets the underlying Stream object for a SerialPort object.

BaudRateBaudRateBaudRateBaudRate

Gets or sets the serial baud rate.

BreakStateBreakStateBreakStateBreakState

Gets or sets the break signal state.

BytesToReadBytesToReadBytesToReadBytesToRead

Gets the number of bytes of data in the receive buffer.

BytesToWriteBytesToWriteBytesToWriteBytesToWrite

Gets the number of bytes of data in the send buffer.

CanRaiseEventsCanRaiseEventsCanRaiseEventsCanRaiseEvents

Gets a value indicating whether the component can raise an event.

(Inherited from Component)
CDHoldingCDHoldingCDHoldingCDHolding

Gets the state of the Carrier Detect line for the port.

ContainerContainerContainerContainer

Gets the IContainer that contains the Component.

(Inherited from Component)
CtsHoldingCtsHoldingCtsHoldingCtsHolding

Gets the state of the Clear-to-Send line.

DataBitsDataBitsDataBitsDataBits

Gets or sets the standard length of data bits per byte.

DesignModeDesignModeDesignModeDesignMode

Gets a value that indicates whether the Component is currently in design mode.

(Inherited from Component)
DiscardNullDiscardNullDiscardNullDiscardNull

Gets or sets a value indicating whether null bytes are ignored when transmitted between the port and the receive buffer.

DsrHoldingDsrHoldingDsrHoldingDsrHolding

Gets the state of the Data Set Ready (DSR) signal.

DtrEnableDtrEnableDtrEnableDtrEnable

Gets or sets a value that enables the Data Terminal Ready (DTR) signal during serial communication.

EncodingEncodingEncodingEncoding

Gets or sets the byte encoding for pre- and post-transmission conversion of text.

EventsEventsEventsEvents

Gets the list of event handlers that are attached to this Component.

(Inherited from Component)
HandshakeHandshakeHandshakeHandshake

Gets or sets the handshaking protocol for serial port transmission of data using a value from Handshake.

IsOpenIsOpenIsOpenIsOpen

Gets a value indicating the open or closed status of the SerialPort object.

NewLineNewLineNewLineNewLine

Gets or sets the value used to interpret the end of a call to the ReadLine() and WriteLine(String) methods.

ParityParityParityParity

Gets or sets the parity-checking protocol.

ParityReplaceParityReplaceParityReplaceParityReplace

Gets or sets the byte that replaces invalid bytes in a data stream when a parity error occurs.

PortNamePortNamePortNamePortName

Gets or sets the port for communications, including but not limited to all available COM ports.

ReadBufferSizeReadBufferSizeReadBufferSizeReadBufferSize

Gets or sets the size of the SerialPort input buffer.

ReadTimeoutReadTimeoutReadTimeoutReadTimeout

Gets or sets the number of milliseconds before a time-out occurs when a read operation does not finish.

ReceivedBytesThresholdReceivedBytesThresholdReceivedBytesThresholdReceivedBytesThreshold

Gets or sets the number of bytes in the internal input buffer before a DataReceived event occurs.

RtsEnableRtsEnableRtsEnableRtsEnable

Gets or sets a value indicating whether the Request to Send (RTS) signal is enabled during serial communication.

SiteSiteSiteSite

Gets or sets the ISite of the Component.

(Inherited from Component)
StopBitsStopBitsStopBitsStopBits

Gets or sets the standard number of stopbits per byte.

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WriteBufferSizeWriteBufferSizeWriteBufferSizeWriteBufferSize

Gets or sets the size of the serial port output buffer.

WriteTimeoutWriteTimeoutWriteTimeoutWriteTimeout

Gets or sets the number of milliseconds before a time-out occurs when a write operation does not finish.

Methods

Close()Close()Close()Close()

Closes the port connection, sets the IsOpen property to false, and disposes of the internal Stream object.

CreateObjRef(Type)CreateObjRef(Type)CreateObjRef(Type)CreateObjRef(Type)

Creates an object that contains all the relevant information required to generate a proxy used to communicate with a remote object.

(Inherited from MarshalByRefObject)
DiscardInBuffer()DiscardInBuffer()DiscardInBuffer()DiscardInBuffer()

Discards data from the serial driver's receive buffer.

DiscardOutBuffer()DiscardOutBuffer()DiscardOutBuffer()DiscardOutBuffer()

Discards data from the serial driver's transmit buffer.

Dispose()Dispose()Dispose()Dispose()

Releases all resources used by the Component.

(Inherited from Component)
Dispose(Boolean)Dispose(Boolean)Dispose(Boolean)Dispose(Boolean)

Releases the unmanaged resources used by the SerialPort and optionally releases the managed resources.

Equals(Object)Equals(Object)Equals(Object)Equals(Object)

Determines whether the specified object is equal to the current object.

(Inherited from Object)
GetHashCode()GetHashCode()GetHashCode()GetHashCode()

Serves as the default hash function.

(Inherited from Object)
GetLifetimeService()GetLifetimeService()GetLifetimeService()GetLifetimeService()

Retrieves the current lifetime service object that controls the lifetime policy for this instance.

(Inherited from MarshalByRefObject)
GetPortNames()GetPortNames()GetPortNames()GetPortNames()

Gets an array of serial port names for the current computer.

GetService(Type)GetService(Type)GetService(Type)GetService(Type)

Returns an object that represents a service provided by the Component or by its Container.

(Inherited from Component)
GetType()GetType()GetType()GetType()

Gets the Type of the current instance.

(Inherited from Object)
InitializeLifetimeService()InitializeLifetimeService()InitializeLifetimeService()InitializeLifetimeService()

Obtains a lifetime service object to control the lifetime policy for this instance.

(Inherited from MarshalByRefObject)
MemberwiseClone()MemberwiseClone()MemberwiseClone()MemberwiseClone()

Creates a shallow copy of the current Object.

(Inherited from Object)
MemberwiseClone(Boolean)MemberwiseClone(Boolean)MemberwiseClone(Boolean)MemberwiseClone(Boolean)

Creates a shallow copy of the current MarshalByRefObject object.

(Inherited from MarshalByRefObject)
Open()Open()Open()Open()

Opens a new serial port connection.

Read(Byte[], Int32, Int32)Read(Byte[], Int32, Int32)Read(Byte[], Int32, Int32)Read(Byte[], Int32, Int32)

Reads a number of bytes from the SerialPort input buffer and writes those bytes into a byte array at the specified offset.

Read(Char[], Int32, Int32)Read(Char[], Int32, Int32)Read(Char[], Int32, Int32)Read(Char[], Int32, Int32)

Reads a number of characters from the SerialPort input buffer and writes them into an array of characters at a given offset.

ReadByte()ReadByte()ReadByte()ReadByte()

Synchronously reads one byte from the SerialPort input buffer.

ReadChar()ReadChar()ReadChar()ReadChar()

Synchronously reads one character from the SerialPort input buffer.

ReadExisting()ReadExisting()ReadExisting()ReadExisting()

Reads all immediately available bytes, based on the encoding, in both the stream and the input buffer of the SerialPort object.

ReadLine()ReadLine()ReadLine()ReadLine()

Reads up to the NewLine value in the input buffer.

ReadTo(String)ReadTo(String)ReadTo(String)ReadTo(String)

Reads a string up to the specified value in the input buffer.

ToString()ToString()ToString()ToString()

Returns a String containing the name of the Component, if any. This method should not be overridden.

(Inherited from Component)
Write(Byte[], Int32, Int32)Write(Byte[], Int32, Int32)Write(Byte[], Int32, Int32)Write(Byte[], Int32, Int32)

Writes a specified number of bytes to the serial port using data from a buffer.

Write(Char[], Int32, Int32)Write(Char[], Int32, Int32)Write(Char[], Int32, Int32)Write(Char[], Int32, Int32)

Writes a specified number of characters to the serial port using data from a buffer.

Write(String)Write(String)Write(String)Write(String)

Writes the specified string to the serial port.

WriteLine(String)WriteLine(String)WriteLine(String)WriteLine(String)

Writes the specified string and the NewLine value to the output buffer.

Events

Visual Studio Change Port

DataReceivedDataReceivedDataReceivedDataReceived

Indicates that data has been received through a port represented by the SerialPort object.

DisposedDisposedDisposedDisposed

Occurs when the component is disposed by a call to the Dispose() method.

(Inherited from Component)
ErrorReceivedErrorReceivedErrorReceivedErrorReceived

Indicates that an error has occurred with a port represented by a SerialPort object.

PinChangedPinChangedPinChangedPinChanged

Indicates that a non-data signal event has occurred on the port represented by the SerialPort object.

Serial Port Visual Basic

Security

Visual Studio 2017 Serial Port Communication

SecurityPermission
for the ability to call unmanaged code. Associated enumeration: UnmanagedCode

Visual Studio Serial Port Communication Software

Applies to