FrancoRosa/homework

This script gets available ports then sends and receives data using the ports

Serial communication test

This script gets available ports then sends and receives data using the ports

• Serial communication test
  • Create virtual ports
  • Requirements
  • Script documentation
  • Run the script

Create virtual ports

On Debian/Ubuntu distributions we can use socat to create virtual ports, using the command bellow

#install socat
sudo apt-get install socat

In a new terminal, use the following code to create a pair of serial ports connected between them

sudo socat -d -d pty,raw,echo=0,link=/dev/ttyS0 pty,raw,echo=0,link=/dev/ttyS1

Requirements

Only pyserial was required it is also, shown on requirements.txt

Script documentation

NAME
main

DESCRIPTION
This script list the available ports and selects the
first ones send messages between them.
The script finishes when 10 messages where send and received

    Author: Franco Rosa
    Date: September 20, 2023

FUNCTIONS
    read_data(device)
        This method runs as a thread, the input is the name of the serial port
        it creates a serial port instance and listens to messages over it
        the script finishes when 10 messages are received

    send_data(device)
        This method runs as a thread, the input is the name of the serial port
        it creates a serial port instance and starts sending messages over it
        the script finishes when 10 messages are sent

    sleep(...)
        sleep(seconds)

        Delay execution for a given number of seconds.  The argument may be
        a floating point number for subsecond precision.

DATA
port = <serial.tools.list_ports_linux.SysFS object>
ports = Array of available ports
port1 = First port found
port2 = Second port found
read_thread = thread
send_thread = thread

FILE
/home/fx/Desktop/homework/main.py

• The previous documentation was scafolded using pydoc

pydoc main

Run the script

python main.py