Sending data through serial port

After connect to serial port, you can send data to the target using 2 methods (one of these have 3 overloadings).

SendLine method

Writes the specified string followed by NewLine Value (opens new window).

Parameters

The following is the parameter required by this method.

Type	Name	Description
string	data	The string data to send

Method parameter details

public void SendLine(string data)
{
    ...
}

Example code

if (simplePort.IsOpen)
{
    simplePort.SendLine("Hello World");
}

Output

-> Hello World\n

Send method overloading 1

Writes the specified string directly.

Parameters

The following is the parameter required by this method.

Type	Name	Description
string	data	The string data to send

Method parameter details

public void Send(string data)
{
    ...
}

Example code

if (simplePort.IsOpen)
{
    simplePort.Send("Hello World");
}

Output

-> Hello World

Send method overloading 2

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

Parameters

The following are the parameters required by this method.

Type	Name	Description
byte[]	buffer	The byte array that contains the data to send
int	buffer	The zero-based byte offset in the buffer parameter at which to begin copying bytes to the port.
int	buffer	The number of bytes to write

Method parameter details

public void Send(byte[] buffer, int offset, int count)
{
    ...
}

Example code

if (simplePort.IsOpen)
{
    byte[] data = new byte[] { 0x48, 0x65, 0x6c, 0x6c, 0x6f, 0x20, 0x57, 0x6f, 0x72, 0x6c, 0x64 }; // Hello World
    simplePort.Send(data, 0, data.Length);
}

Output

-> Hello World

Send method overloading 3

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

Parameters

The following are the parameters required by this method.

Type	Name	Description
char[]	buffer	The characters array that contains the data to send
int	buffer	The zero-based byte offset in the buffer parameter at which to begin copying bytes to the port.
int	buffer	The number of characters to write

Method parameter details

public void Send(char[] buffer, int offset, int count)
{
    ...
}

Example code

if (simplePort.IsOpen)
{
    char[] data = new char[] { 'H', 'e', 'l', 'l', 'o', ' ', 'W', 'o', 'r', 'l', 'd' };
    simplePort.Send(data, 0, data.Length);
}

Output

-> Hello World