Ejemplo script

README.md

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+# Script para usar la Rpi con un pulsador en GPIO
+
+Una prueba para usar el puerto GPIO 8 de la Rpi con un pulsador y ejecutar un sonido.
+
+## Descargar audio
+
+Ejemplo:
+
+```
+$ wget http://www.soinumapa.net/wp-content/uploads/2015/10/amurrio_diana.mp3 -O /home/docker/gpio/audio.mp3
+```
+
+## Lanzar el script
+
+```
+# python3 main.py
+```
+
+o 
+
+```
+# ./main.py
+```
+
+## Enlaces
+
+* https://raspberrypihq.com/use-a-push-button-with-raspberry-pi-gpio/
+* https://www.jeffgeerling.com/blog/2022/playing-sounds-python-on-raspberry-pi
+* https://sourceforge.net/p/raspberry-gpio-python/wiki/Inputs/
+* https://realpython.com/intro-to-python-threading/
+

main.py

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+#!/bin/python3
+
+import RPi.GPIO as GPIO # Import Raspberry Pi GPIO library
+import pygame
+import threading
+import time
+
+def play_sound():
+    if not pygame.mixer.music.get_busy() :
+        print("Start Sound")
+        pygame.mixer.music.play()
+        while pygame.mixer.music.get_busy():
+            pygame.time.Clock().tick(10)
+    else :
+        print("Stop Sound")
+        pygame.mixer.music.stop()
+
+def button_callback(channel):
+    print("Button was pushed!")
+    x = threading.Thread(target=play_sound)
+    x.start()
+
+
+## init pygame
+pygame.mixer.init()
+pygame.mixer.music.load('/home/docker/gpio/audio.mp3')
+
+GPIO.setwarnings(False) # Ignore warning for now
+GPIO.setmode(GPIO.BOARD) # Use physical pin numbering
+GPIO.setup(10, GPIO.IN, pull_up_down=GPIO.PUD_DOWN) # Set pin 10 to be an input pin and set initial value to be pulled low (off)
+GPIO.add_event_detect(10,GPIO.RISING,callback=button_callback, bouncetime=10000) # Setup event on pin 10 rising edge 10s wait
+message = input("Press enter to quit\n\n") # Run until someone presses enter
+GPIO.cleanup() # Clean up