UD18TesterReader.cs

using System;
using System.IO;
using System.IO.Ports;

namespace UD18TesterReader
{
    class Program
    {
        static void Main(string[] args)
        {
            new Program().mainLoop();
        }

        StreamWriter streamWriter;

        public void mainLoop()
        {
            Int32 i = (Int32)(DateTime.UtcNow.Subtract(new DateTime(1970, 1, 1))).TotalSeconds;
            streamWriter = new StreamWriter(i + ".txt");

            write("datetime,unixtime,volt,amp,mah,wh,dmin,dplus,h,m,s\n");

            var serialPort = new SerialPort("COM7");
            serialPort.Open();
            
            while (true)
            {
                waitForHeader(serialPort);
                readAndPrintData(serialPort);
            }
        }

        private void readAndPrintData(SerialPort sp)
        {
            write(DateTime.UtcNow.ToString("s"));
            write(",  ");

            Int32 i = (Int32)(DateTime.UtcNow.Subtract(new DateTime(1970, 1, 1))).TotalSeconds;
            write(i.ToString());
            write(",  ");

            //=========================== volt
            int v0 = sp.ReadByte();
            int v1 = sp.ReadByte();
            int v2 = sp.ReadByte();

            int xyz  = v0 << 16 | v1 << 8 | v2; // volt
            write(xyz.ToString());
            write(",  ");

            //=========================== amp
            v0 = sp.ReadByte();
            v1 = sp.ReadByte();
            v2 = sp.ReadByte();

            xyz = v0 << 16 | v1 << 8 | v2;  // amp
            write(xyz.ToString());
            write(",  ");


            //=========================== mAH
            v0 = sp.ReadByte();
            v1 = sp.ReadByte();
            v2 = sp.ReadByte();

            xyz = v0 << 16 | v1 << 8 | v2;  // mah
            write(xyz.ToString());
            write(",  ");


            //=========================== wH
            v0 = sp.ReadByte();
            v1 = sp.ReadByte();
            v2 = sp.ReadByte();
            int v3 = sp.ReadByte();

            xyz = v0 << 24 | v1 << 16 | v2 << 8 | v3;  // wH
            write(xyz.ToString());
            write(",  ");

            //=========================== d-
            v0 = sp.ReadByte();
            v1 = sp.ReadByte();

            xyz = v0 << 8 | v1;  // d-
            write(xyz.ToString());
            write(",  ");

            //=========================== d+
            v0 = sp.ReadByte();
            v1 = sp.ReadByte();

            xyz = v0 << 8 | v1;  // d+
            write(xyz.ToString());
            write(",  ");

            //=========================== nothing
            v0 = sp.ReadByte();
            v1 = sp.ReadByte();
            v2 = sp.ReadByte();


            //=========================== HH
            v0 = sp.ReadByte();
            write(v0.ToString());
            write(",  ");

            //=========================== MM
            v0 = sp.ReadByte();
            write(v0.ToString());
            write(",  ");

            //=========================== SS
            v0 = sp.ReadByte();
            write(v0.ToString());

            write("\n");
        }

        public void write(string s)
        {
            Console.Write(s);
            streamWriter.Write(s);
            streamWriter.Flush();
        }

        public void waitForHeader(SerialPort sp)
        {
            int[] header = new int[4];
            while (header[0] != 0xff || header[1] != 0x55 || header[2] != 0x01 || header[3] != 0x03 )
            {
                header[0] = header[1];
                header[1] = header[2];
                header[2] = header[3];
                header[3] = sp.ReadByte();
            }
        }

    }
}