C # Implementation of serial programming-operating LED screen

Serial programming mainly used to serialport this class, the main implementation of the serial port to send a byte array and then dot-matrix screen display related information, in fact, this function is very simple below for everyone to the overall idea with a flowchart to show as follows:,

In fact, the overall idea is like a flowchart. Here is an implementation code for the entire flowchart:

usingSystem;usingSystem.Collections.Generic;usingSystem.Linq;usingSystem.Text;usingSystem.IO.Ports;usingSystem.Threading;namespaceportchart{classserilaztion {SerialPort _serialport;  PublicSerilaztion (stringcom) {_serialport=NewSerialPort (); _serialport.portname=com; _serialport.baudrate=4800; _serialport.parity=Parity.none; _serialport.databits=8; _serialport.stopbits=Stopbits.one; _serialport.readbuffersize=4096; _serialport.handshake=Handshake.none; _serialport.readtimeout= -; _serialport.writetimeout= -;        _serialport.open (); }        Private Static byte[] Strtotohexbyte (stringhexstring) {hexstring= Hexstring.replace (" ",""); if((hexstring.length%2) !=0) hexstring+=" "; byte[] Returnbytes =New byte[Hexstring.length/2];  for(inti =0; i < returnbytes.length; i++) Returnbytes[i]= Convert.tobyte (hexstring.substring (i *2,2), -); returnreturnbytes; }          Public Static stringStringtohexstring (strings, Encoding encode) {            byte[] b = encode. GetBytes (s);//encodes a string into a byte array according to the specified encoding            stringresult =string.            Empty;  for(inti =0; i < b.length; i++)//byte to 16 characters, separated by%{result+ = Convert.ToString (B[i], -); }            returnresult; }                           Public voidSendMessage (stringMessagestringComstringtype) {System.Text.Encoding GB2312= System.Text.Encoding.GetEncoding ("GB2312"); Message=message.            Trim (); stringKZM ="1b0104";//Start Code            stringHH =stringtohexstring (message, GB2312); stringJS ="0d00";//End Code            stringZF = Kzm + hh +JS; strings ="1b010320202020c7eb20c9cf20cfdf202020200d00"; byte[] by =Strtotohexbyte (ZF); byte[] bt =Strtotohexbyte (s); _serialport.write (By,0, by.                Length); _serialport.write (BT,0, Bt.                Length); }         Public voidClose () {_serialport.close (); }         Public Static stringSetportname (stringdefaultportname) {            stringPortName; Console.WriteLine ("Verify Port:"); foreach(stringSinchSerialport.getportnames ()) {Console.WriteLine ("{0}", s); } console.write ("Please enter the COM port (default: {0}):", Defaultportname); PortName=Console.ReadLine (); if(PortName = =""|| ! (Portname.tolower ()). StartsWith ("com") ) {PortName=Defaultportname; }            returnPortName; }             Public Static intSetportbaudrate (intdefaultportbaudrate) {            stringbaudrate; Console.Write ("set baud rate (default: {0}):", defaultportbaudrate); BaudRate=Console.ReadLine (); if(BaudRate = ="") {baudrate=defaultportbaudrate.tostring (); }            return int.        Parse (baudrate); }           Public StaticParity setportparity (Parity defaultportparity) {stringparity; Console.WriteLine ("verify parity bit:"); foreach(stringSinchEnum.getnames (typeof(Parity))) {Console.WriteLine ("{0}", s); } console.write ("Enter check digit (default: {0}):", Defaultportparity.tostring (),true); Parity=Console.ReadLine (); if(Parity = ="") {Parity=defaultportparity.tostring (); }            return(Parity) Enum.parse (typeof(Parity), Parity,true); }             Public Static intSetportdatabits (intdefaultportdatabits) {            stringdatabits; Console.Write ("set the standard data bit length for each byte (default: {0}):", defaultportdatabits); DataBits=Console.ReadLine (); if(DataBits = ="") {databits=defaultportdatabits.tostring (); }            return int.        Parse (Databits.toupperinvariant ()); }               Public Staticstopbits setportstopbits (stopbits defaultportstopbits) {stringstopbits; Console.WriteLine ("set the standard number of stop bits per byte:"); foreach(stringSinchEnum.getnames (typeof(stopbits))) {Console.WriteLine ("{0}", s); } stopbits=Console.ReadLine (); if(StopBits = ="") {StopBits=defaultportstopbits.tostring (); }            return(stopbits) Enum.parse (typeof(stopbits), StopBits,true); }         Public StaticHandshake Setporthandshake (handshake defaultporthandshake) {stringhandshake; Console.WriteLine ("to set the handshake protocol for serial port data transfer:"); foreach(stringSinchEnum.getnames (typeof(handshake))) {Console.WriteLine ("{0}", s); } console.write ("Handshake protocol for Port data transfer (default: {0}):", defaultporthandshake.tostring ()); Handshake=Console.ReadLine (); if(Handshake = ="") {Handshake=defaultporthandshake.tostring (); }            return(handshake) Enum.parse (typeof(handshake), handshake,true); }    }}

Above I put the parameters of the serial port fixed, can be set according to their own needs to pass the parameters.

C # Implementation of serial programming-operating LED screen