using System;
using System.IO.Ports;
class MainClass {
static void Main(string[] args) {
using (SerialPort port = new SerialPort("COM1")) {
port.BaudRate = 9600;
port.Parity = Parity.None;
port.ReadTimeout = 10;
port.StopBits = StopBits.One;
port.Open();
port.Write("Hello world!");
Console.WriteLine("Wrote to the port.");
}
}
}
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