Vehicle_diagnostic _tool.py

import obd
import time

def connect_to_vehicle():
    # Attempt to connect to the OBD-II adapter
    connection = obd.OBD()  # Auto-connects to the first available port
    if connection.is_connected():
        print("Connected to vehicle!")
        return connection
    else:
        print("Failed to connect to vehicle. Ensure the adapter is plugged in.")
        return None

def get_vehicle_info(connection):
    # Retrieve vehicle information
    print("\nFetching vehicle information...")
    commands = [obd.commands.VIN, obd.commands.ELM_VERSION, obd.commands.OBD_VERSION]
    for cmd in commands:
        response = connection.query(cmd)
        print(f"{cmd.name}: {response.value if response.is_successful() else 'N/A'}")

def read_diagnostic_codes(connection):
    # Retrieve diagnostic trouble codes (DTCs)
    print("\nReading diagnostic trouble codes...")
    response = connection.query(obd.commands.GET_DTC)
    if response.is_successful():
        dtcs = response.value
        if dtcs:
            for code, description in dtcs:
                print(f"Code: {code}, Description: {description}")
        else:
            print("No trouble codes found.")
    else:
        print("Failed to retrieve trouble codes.")

def monitor_live_data(connection):
    # Monitor real-time engine data
    print("\nMonitoring live data (Press Ctrl+C to stop)...")
    try:
        while True:
            rpm = connection.query(obd.commands.RPM)
            speed = connection.query(obd.commands.SPEED)
            print(f"RPM: {rpm.value if rpm.is_successful() else 'N/A'}, "
                  f"Speed: {speed.value if speed.is_successful() else 'N/A'}")
            time.sleep(1)
    except KeyboardInterrupt:
        print("\nStopped live data monitoring.")

if __name__ == "__main__":
    connection = connect_to_vehicle()
    if connection:
        get_vehicle_info(connection)
        read_diagnostic_codes(connection)
        monitor_live_data(connection)
        connection.close()