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  1. 123

    RS-485 communication in Python can be implemented using the pyserial library, which provides robust support for serial communication, including RS-485. Below is an example demonstrating how to configure and use RS-485 with pyserial.

    import serial
    from serial.rs485 import RS485Settings

    # Configure the RS-485 serial port
    ser = serial.Serial(
    port='COM3', # Replace with your COM port
    baudrate=9600, # Set baud rate
    bytesize=8, # Data bits
    parity='N', # No parity
    stopbits=1 # Stop bits
    )

    # Enable RS-485 mode with specific settings
    ser.rs485_mode = RS485Settings(
    rts_level_for_tx=True, # RTS high during transmission
    rts_level_for_rx=False, # RTS low during reception
    delay_before_tx=0.01, # Optional delay before transmission (in seconds)
    delay_before_rx=0.01 # Optional delay before reception (in seconds)
    )

    # Sending data
    data_to_send = b'\xFA\x02\x02\x2A\xFE\x0C' # Example hexadecimal command
    ser.write(data_to_send)
    print(f"Sent: {data_to_send}")

    # Receiving data
    response = ser.read(6) # Read 6 bytes from the device
    print(f"Received: {response}")

    # Close the serial port
    ser.close()
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  2. Github
    https://github.com › pyserial › pyserial › blob › master › serial

    pyserial/serial/rs485.py at master - GitHub

    Python serial port access library. Contribute to pyserial/pyserial development by creating an account on GitHub.

  3. Stack Overflow
    https://stackoverflow.com › questions

    serial port - RS485 communication with Python - Stack Overflow

    Mar 2, 2021 · Here's my problem: I need to send Hexadecimal commands to a device via RS485 to make it work. I can communicate perfectly with this device using RealTerm, I send my requests and I …

    • Reviews: 3
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      https://help.stepperonline.com › en › article

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      https://medium.com › @peterfitch

      MODBUS and RS485 — a Python test rig. - Medium

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      https://pyserial.readthedocs.io › en › latest › examples.html

      Examples — pySerial 3.5 documentation

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    • pyserial.com
      https://www.pyserial.com › en › docs

      PySerial Docs | PySerial Docs

      PySerial Docs Cross-platform Python library for serial port communication. Works with Arduino, Raspberry Pi, and industrial devices on Windows, Linux, and macOS.

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      https://codepal.ai › code-generator › query

      Python RS485 Data Display - CodePal

      Dec 30, 2023 · Learn how to write Python code to display data received via the RS485 interface. This tutorial provides a step-by-step guide and example usage of the code.

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      https://raspberrypi.stackexchange.com › questions

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      https://revolutionpi.com › forum › viewtopic.php

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