Python • Loop - Limit Switch + Play MP3

Code:

import RPi.GPIO as GPIOimport osimport sysimport vlcimport timefrom time import sleepfrom subprocess import Popen# mp3 file pathmp3_file = '/home/jenson/Music/Jaws.mp3'# create instance of VLCplayer = vlc.MediaPlayer()# load mp3 filemedia = vlc.Media(mp3_file)player.set_media(media)GPIO.setmode(GPIO.BCM)# Define GPIO PIN for SwitchSWITCH_PIN = 16# Define debounce time in millisecondsDEBOUNCE_TIME_MS = 200  # 200 milliseconds# Set the initial state and pull-up resistor for the buttonGPIO.setup(SWITCH_PIN, GPIO.IN, pull_up_down=GPIO.PUD_UP)# Initialize the button state and previous stateswitch_state = GPIO.input(SWITCH_PIN)prev_switch_state = switch_state# Define a function to handle button pressesdef button_callback(channel):    global switch_state    switch_state = GPIO.input(SWITCH_PIN)# event listener for button pressGPIO.add_event_detect(SWITCH_PIN, GPIO.BOTH, callback=button_callback, bouncetime=DEBOUNCE_TIME_MS)    # Main loopwhile True:        # Check if the button state has changed        if switch_state != prev_switch_state:            if switch_state == GPIO.HIGH:                print("The limit switch: TOUCHED -> UNTOUCHED")            else:                print("The limit switch: UNTOUCHED -> TOUCHED")                      #  prev_switch_state = switch_state        if switch_state == GPIO.HIGH:            print("The limit switch: UNTOUCHED")        else:            print("The limit switch: JAWs")            player.play()