Serial port is a type of device that uses an UART chip, a Universal Asynchronous Receiver Transmitter. One of the two basic ways to interface a computer in the olden days, parallel ports were the other way. Serial is simple to hook up, it doesn’t need a lot of wires. Parallel was useful if you … Read more
Please take a look here: RS-232 for Linux and Windows 1) Windows Serial Port Programming 2) Using the Serial Ports in Visual C++ 3) Serial Communication in Windows 1) You can use this with Windows (incl. MinGW) as well as Linux. Alternative you can only use the code as an example. 2) Step-by-step tutorial how … Read more
Have you considered HDLC or SDLC? There’s also LAP/D (Link Access Protocol, D-Channel). Uyless Black’s “Data Link Protocols” is always nearby on my bookshelf – you might find some useful material in there too (even peruse the TOC & research the different protocols)
I noticed the same thing about BOTHER not being defined. Like Jamey Sharp said, you can find it in <asm/termios.h>. Just a forewarning, I think I ran into problems including both it and the regular <termios.h> file at the same time. Aside from that, I found with the glibc I have, it still didn’t work … Read more
Could you try something like this for example I think what you are wanting to utilize is the port.ReadExisting() Method using System; using System.IO.Ports; class SerialPortProgram { // Create the serial port with basic settings private SerialPort port = new SerialPort(“COM1”, 9600, Parity.None, 8, StopBits.One); [STAThread] static void Main(string[] args) { // Instatiate this SerialPortProgram(); … Read more
I have some preferences (and pet peeves) from writing software to control media and display devices using RS232. Depending on your hardware, some of these may not apply: I think it’s a good idea to make your protocol more friendly for automation. If you need an interactive interface (command line or other), build it separately … Read more
You can use inWaiting() to get the amount of bytes available at the input queue. Then you can use read() to read the bytes, something like that: While True: bytesToRead = ser.inWaiting() ser.read(bytesToRead) Why not to use readline() at this case from Docs: Read a line which is terminated with end-of-line (eol) character (\n by … Read more
I just encountered this problem myself on Windows 7 Professional x64, and a solution that worked for me was to go into the registry and edit the following value: Location: HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\sermouse Key: Start Value: 3 Change Value to 4 and it will stop this problem occurring. Here is a list of all valid Start values: … Read more
You can find your Arduino via Terminal with ls /dev/tty.* then you can read that serial port using the screen command, like this screen /dev/tty.[yourSerialPortName] [yourBaudRate] for example: screen /dev/tty.usbserial-A6004byf 9600
If you want to use hexadecimal codes, you should add the -e option to enable interpretation of backslash escapes by echo (but the result is the same as with echo Ctrl + R,Ctrl + B). And as wallyk said, you probably want to add -n to prevent the output of a newline: echo -en ‘\x12\x02’ … Read more