In each call, it calls the getReading() method from the dll which reads line from com port and returns the result. To achieve continuous reading from port rather than using an eventhandler, I use the tickTime() method which keeps calling itself in an interval of 10 milliseconds. In the Ax, while initializing my form I initialize the com port using and instance of my class. Note I did not add DataReceived eventhandler. _serialPort.Open() //<- make the comport listen _serialPort = new SerialPort(,, Parity.None,, StopBits.One) //<- Creates new SerialPort using the name selected in the combobox

Public Boolean initiateComPortConnection() Next step I transferred the code with logic to a AX form as follows. Parsing recieved data to extract the weight MessageBox.Text += 'Error ' + ex.Message It can Open virtual COM ports, and write / read data to the virtual COM port. This.Invoke((Delegate)new MethodInvoker(this.Display)) If you want to write/read to virtual COM port, you can use System.IO.Ports.SerialPort class. printing reading to text box to see nature of data. This.buffer = this._serialPort.ReadLine() Private void SerialPortOnDataReceived(object sender, SerialDataReceivedEventArgs serialDataReceivedEventArgs) MessageBox.Text = 'Listening on ' + _serialPort.PortName + '. ' _serialPort.DataReceived += SerialPortOnDataReceived Add event handler when ever data is received in COM port NET CORE 3.1 Nuget package required: System.IO. Written in Windows Presentation Foundation (WPF) UI framework template. _serialPort = new SerialPort('COM1', 9600, Parity.None, 8, StopBits.One) WPF-Serial-Terminal This is another version of my Simple Serial Terminal. Later settings will be transfered to settings file Has the same limitations as a Mono SerialPort, but much lower CPU usage, making it suitable for low power linux ARM boards. Initialize serial port with hard coded settings. Mono SerialPort as a NET Standard 2.0 library. If (_serialPort != null & _serialPort.IsOpen) if you want to connect directly any port, you can chance. Private void startButton_Click(object sender, EventArgs e) PortName property of the SerialPort class will list all serial port that is connectted the pc. Private void Form1_Load(object sender, EventArgs e)

Wpf serial port