The serial communication is the most important communication port which all microcontrollers should have. This enables the user to communicate with the microcontroller using text commands. The microcontroller can also send back data in text format or simply as data bytes. Thus the serial communication provides a text user interface (TUI) for the microcontroller. Multiplexing serial port ( Rx,Tx. I'm wondering which multiplexer do i use to connecting 4 machines to the Rx,Tx arduino pins, the picture below explain what i'm.

1. 16 Channel Multiplexer Arduino
2. Rs232 Serial Port Multiplexer

Serial port multiplexer over TCP.

What?

Jai santoshi mata telugu mp3 songs free download bollywood. This is a set of simple utilities used to let several programs share access to a device connected to a single serial port.Included:

• A server, which manages the serial port and shares it over TCP with any number of clients;
• a client, used to interact with the connected device (either via text terminal or via script);
• and a logger, which receives a copy of everything going through the serial port and timestamps it.

So, how?

The way I use it:

1. Launch the server:

2. Then connect any number of clients:

3. ..and the logger:

4. Now I have a console on one terminal and one logger on the other. Optionally I would launch some script to interact with the device on a third terminal, like this:

Some useful info:

• The arguments are optional. The defaults are /dev/ttyS0 at 9600bps served at localhost:23200;

• In theory the server can accept external connections. Could be useful to monitor a device connected to a remote machine;

• The client is built on top of the fdpexpect module;

• If launched with python -i, the client enters the interactive shell upon exit and gives access to a MuxClient instance:

• There are other ways to connect to the client. Any TCP socket will do:

• I used the SerialCallResponseASCII Arduino sketch for this demo.

But why?

16 Channel Multiplexer Arduino

I had a need to automate some tests for an embedded system I was developing. I could not easily leave an script running agains this system and have accurate timing information on the logs. Also, it was impossible to access the user shell to investigate something while the test ran.

Rs232 Serial Port Multiplexer

Credits

Code for the logger was shamefully stolen from Grabserial