txrx

Sometimes all you need is send bunch of bytes into the serial using specific settings and print the response after some time. The rxtx utility does exactly that.

Building

Rust freaks know what to do :)

For rest & uninitiated:

• git clone this repo
• cargo build in the project dir
• check target/debug dir for the output binary.

Usage

    txrx TTYDEV -b BAUDRATE [OPTIONS] [FLAGS]

    FLAGS:
        -h, --help              Prints help and exits

    OPTIONS:
        -b, --baud BAUDRATE     Baudrate of the port. Mandatory.

        -c, --cfg CONFIG        Three characters representing the configuration
                                of the port. Examples are: 8N1, 7E1, etc.
                                Optional. Default value is 8N1.

                                First character: number of data bits.
                                Permitted values are: 5, 6, 7, 8

                                Second character: a letter represendting parity:
                                Permitted values are:
                                    N - no parity
                                    E - even parity

                                Third character: number of stop bits.
                                Permitted values are: 1, 2

        -t, --timeout TIMEOUT   Wait for reply for specified amount of millseconds.
                                Optional. Default value is 1000 ms.

        -q, --quiet             Don't output anything to stderr.
                                Optional. Default behaviour is to print logs
                                to stderr.

        -s, --stdout            Output received data into the stdout. This way
                                incoming data can be piped into other processes
                                or saved to the file.

    ARGS:
        <TTYDEV>                Path to tty serial port device.
                                E.g.: /dev/ttyUSB0, /dev/ttyACM0 and such.

Typical Scenarios

Basic Usage

Send/receive data using default settings:

echo "Hello, serial world!" | txrx /dev/ttyUSB0 -b 9600`

Saving Data to File

You can send the serial port incoming data somewhere else:

echo "Hello, serial world!" | txrx /dev/ttyUSB0 -b 9600 -s > /tmp/response.bin

Piping Responses

Note the -q flag to supress unnecessary chatter:

echo "Hello, serial world!" | txrx /dev/ttyUSB0 -b 9600 -q -s | grep "needle"

License

This project is licensed under the MIT License.