Question SerialPort.Write more than 64 bytes

[tnn]

Hi,

a kindly confirmation ...

with this code can I send more than 64 bytes?

SerialPort1.Write(CommandByte, 0, CommandByte.Length)

 

[JohnH]

Yes, WriteBufferSize defaults to 2048 bytes, and default BaudRate 9600 bits means 1200 bytes can be transmitted per second. Compare that with your actual communication properties.

SerialPort.BaseStream Property (System.IO.Ports)

Gets the underlying Stream object for a SerialPort object.

docs.microsoft.com

 

[tnn]

Yes, WriteBufferSize defaults to 2048 bytes, and default BaudRate 9600 bits means 1200 bytes can be transmitted per second. Compare that with your actual communication properties.

SerialPort.BaseStream Property (System.IO.Ports)

Gets the underlying Stream object for a SerialPort object.

docs.microsoft.com

I have to send BaudRate 9600 ... so ok?

 

[BrettNelson]

One of the best ways I know to troubleshoot or test serial communications is to (if your PC has two serial ports) use a null modem cable. Connect the null modem cable to each of the two ports on your PC and then test I've coded and played around with serial communications using vb.net and a null modem cable. The basic stuff I did (sending and receiving text) worked extremely well. Well above the 64k you mention.