Read char data from Arduino in C# -

so developing code able read data coming arduino through serialport. defined characters want read arduino , depending on receive send arduino.

what receive based on 3 characters: @, r , \r.

string arroba = "@" + "r" + "\r"; byte[] asciibytes = encoding.ascii.getbytes(arroba); 

i've mande code don't know if gonna work.

when arduino sent me want read :

comport.readbyte(asciibytes);  

could figure out how can read data coming arduino this?

first, should listen incoming data adding event handler comport:

comport.datareceived += received; 

inside handler, can read received bytes. check bytes if specific sequence (@, r, \r) in received data:

private void received(object sender, serialdatareceivedeventargs e) {     int bytes = comport.bytestoread;     byte[] buffer = new byte[bytes];     comport.read(buffer, 0, bytes);     if (buffer.except(encoding.ascii.getbytes("@r\r")).any() == true)     {         //your sequence received     } } 

since except linq, don't forget add

using system.linq;