Serial Monitor

A simple Python-based tool for monitoring and logging serial port data with command-line options for Raspberry Pi.

---

Features

• Real-Time Serial Monitoring: Continuously reads and displays data from a specified serial port.
• Optional Logging: Logs the received data to serial_log.txt when the --log option is enabled.
• Configurable Parameters:
  • Serial port and baud rate are adjustable via command-line arguments.

---

Requirements

• Python: Version 3.7 or later
• Libraries:
  • pyserial
  • logging (built-in)

Install the required library using pip:

pip install -r requirements.txt

Usage

Command-Line Arguments

Argument	Required	Description
-p, --port	No	Serial port to connect to (default: /dev/serial0).
-b, --baudrate	No	Baud rate for the serial connection (default: 115200).
-L, --log	No	Enable logging to a file (serial_log.txt).

Example Commands

Monitor Serial Port without Logging

python3 serial_monitor -p /dev/serial0 -b 115200 

Monitor Serial Port with Logging

python3 serial_monitor -p /dev/serial0 -b 115200 -L

How It Works

1. Connect to the Serial Port:

   • Opens a connection to the specified serial port at the given baud rate.
   • Automatically retries the connection every 5 seconds if an error occurs.

2. Read and Display Data:

   • Continuously reads data from the serial port line by line.
   • Prints the received data to the console.

3. Optional Logging:

   • If the --log option is enabled, all received data is logged to serial_log.txt.
   • Logs include timestamps for each line of data.

4. Error Handling:

   • Handles errors in serial communication gracefully by reconnecting after a delay.