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# Copyright (c) 2014 Adafruit Industries # Author: Tony DiCola # # Permission is hereby granted, free of charge, to any person obtaining a copy # of this software and associated documentation files (the "Software"), to deal # in the Software without restriction, including without limitation the rights # to use, copy, modify, merge, publish, distribute, sublicense, and/or sell # copies of the Software, and to permit persons to whom the Software is # furnished to do so, subject to the following conditions: # # The above copyright notice and this permission notice shall be included in # all copies or substantial portions of the Software. # # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, # FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE # AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER # LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN # THE SOFTWARE. import sys import time import pygame import Adafruit_MPR121.MPR121 as MPR121 # Thanks to Scott Garner & BeetBox! # https://github.com/scottgarner/BeetBox/ print ('Adafruit MPR121 Capacitive Touch Audio Player Test') # Create MPR121 instance. cap = MPR121.MPR121() # Initialize communication with MPR121 using default I2C bus of device, and # default I2C address (0x5A). On BeagleBone Black will default to I2C bus 0. if not cap.begin(): print('Error initializing MPR121. Check your wiring!') sys.exit(1) # Alternatively, specify a custom I2C address such as 0x5B (ADDR tied to 3.3V), # 0x5C (ADDR tied to SDA), or 0x5D (ADDR tied to SCL). #cap.begin(address=0x5B) # Also you can specify an optional I2C bus with the bus keyword parameter. #cap.begin(busnum=1) pygame.mixer.pre_init(44100, -16, 12, 512) pygame.init() # Define mapping of capacitive touch pin presses to sound files # tons more sounds are available but because they have changed to .flac in /opt/sonic-pi/etc/samples/ some will not work # more .wav files are found in /usr/share/scratch/Media/Sounds/ that work fine this example uses Aniamal sounds. SOUND_MAPPING = { 0: '/home/pi/Desktop/sounds/00.wav', 1: '/home/pi/Desktop/sounds/01.wav', 2: '/home/pi/Desktop/sounds/02.wav', 3: '/home/pi/Desktop/sounds/03.wav', 4: '/home/pi/Desktop/sounds/04.wav', 5: '/home/pi/Desktop/sounds/05.wav', 6: '/home/pi/Desktop/sounds/06.wav', 7: '/home/pi/Desktop/sounds/07.wav', 8: '/home/pi/Desktop/sounds/08.wav', 9: '/home/pi/Desktop/sounds/09.wav', 10: '/home/pi/Desktop/sounds/10.wav', 11: '/home/pi/Desktop/sounds/11.wav', } #UNCOMMENT FOR ANIMAL SOUNDS :) # SOUND_MAPPING = { # 0: '/usr/share/scratch/Media/Sounds/Animal/Bird.wav', # 1: '/usr/share/scratch/Media/Sounds/Animal/Cricket.wav', # 2: '/usr/share/scratch/Media/Sounds/Animal/Dog1.wav', # 3: '/usr/share/scratch/Media/Sounds/Animal/Dog2.wav', # 4: '/usr/share/scratch/Media/Sounds/Animal/Duck.wav', # 5: '/usr/share/scratch/Media/Sounds/Animal/Goose.wav', # 6: '/usr/share/scratch/Media/Sounds/Animal/Horse.wav', # 7: '/usr/share/scratch/Media/Sounds/Animal/Kitten.wav', # 8: '/usr/share/scratch/Media/Sounds/Animal/Meow.wav', # 9: '/usr/share/scratch/Media/Sounds/Animal/Owl.wav', # 10: '/usr/share/scratch/Media/Sounds/Animal/Rooster.wav', # 11: '/usr/share/scratch/Media/Sounds/Animal/WolfHowl.wav', # } sounds = [0,0,0,0,0,0,0,0,0,0,0,0] for key,soundfile in SOUND_MAPPING.iteritems(): sounds[key] = pygame.mixer.Sound(soundfile) sounds[key].set_volume(1); # Main loop to print a message every time a pin is touched. print('Press Ctrl-C to quit.') last_touched = cap.touched() while True: current_touched = cap.touched() # Check each pin's last and current state to see if it was pressed or released. for i in range(12): # Each pin is represented by a bit in the touched value. A value of 1 # means the pin is being touched, and 0 means it is not being touched. pin_bit = 1 << i # First check if transitioned from not touched to touched. if current_touched & pin_bit and not last_touched & pin_bit: print('{0} touched!'.format(i)) if (sounds[i]): sounds[i].play() if not current_touched & pin_bit and last_touched & pin_bit: print('{0} released!'.format(i)) # Update last state and wait a short period before repeating. last_touched = current_touched time.sleep(0.1) # Alternatively, if you only care about checking one or a few pins you can # call the is_touched method with a pin number to directly check that pin. # This will be a little slower than the above code for checking a lot of pins. #if cap.is_touched(0): # print('Pin 0 is being touched!') # If you're curious or want to see debug info for each pin, uncomment the # following lines: #print('\t\t\t\t\t\t\t\t\t\t\t\t\t 0x{0:0X}'.format(cap.touched())) #filtered = [cap.filtered_data(i) for i in range(12)] #print('Filt:', '\t'.join(map(str, filtered))) #base = [cap.baseline_data(i) for i in range(12)] #print('Base:', '\t'.join(map(str, base)))
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