drums.py

   1 import pygame
   2 import RPi.GPIO as gpio
   3 import logging
   4
   5 logger = logging.getLogger(__name__)
   6 loggerFileHandler = logging.FileHandler('drums.log')
   7 loggerFileHandlerFormatter = logging.Formatter('%(asctime)s %(levelname)-8s  %(message)s')
   8 loggerFileHandler.setFormatter(loggerFileHandlerFormatter)
   9 logger.addHandler(loggerFileHandler)
  10 logger.setLevel(logging.WARNING)
  11 logger.setLevel(logging.INFO)
  12
  13 gpio.setmode(gpio.BCM)
  14 pins = [25, 24, 23, 18]
  15 # pins = [18]
  16
  17 drums = ['sounds/hihat.wav',
  18          'sounds/maracas.wav',
  19          'sounds/slowdrum.wav',
  20          'sounds/snare.wav']
  21
  22 pygame.mixer.init()
  23
  24 sounds = {}
  25 for pin, wav in zip(pins, drums):
  26     sounds[pin] = pygame.mixer.Sound(wav)
  27
  28 def handle_sound(pin):
  29     sounds[pin].play()
  30     logger.info("Played {0}".format(pin))
  31
  32 for pin in pins:
  33     gpio.setup(pin, gpio.IN)
  34     gpio.add_event_detect(pin, gpio.RISING, callback=handle_sound, bouncetime=100)
  35
  36 while True:
  37     pass