import serial
import time
import multiprocessing

def send_command(ser, command):
    ser.write(command.encode())
    print(f"Sent command: {command}")

def receive_response(ser):
    while True:
        response = ser.readline().decode().strip()
        if response:
            print(f"Received response: {response}")

def main(port='/dev/ttyACM0', baudrate=9600, timeout=1):
    try:
        # Open the serial port
        ser = serial.Serial(port, baudrate, timeout=timeout)
        
        # Wait for the Arduino to initialize (optional)
        time.sleep(2)

        # Define commands to send
        commands = ["command1", "command2", "command3"]

        # Create a separate process to continuously listen for responses
        response_process = multiprocessing.Process(target=receive_response, args=(ser,))
        response_process.daemon = True
        response_process.start()

        # Send commands
        for command in commands:
            send_command(ser, command)

        # Close the serial port
        ser.close()
        print("Communication finished.")
    except Exception as e:
        print("Error:", str(e))

if __name__ == "__main__":
    main()