Capacitive Touch CircuitPython

capacitive-touch.py

# capacitive-touch.py
import board, neopixel, time, digitalio, touchio
from adafruit_led_animation.color import RED, YELLOW, ORANGE, \
    GREEN, TEAL, CYAN, BLUE, PURPLE, MAGENTA, GOLD, PINK, AQUA, \
    JADE, AMBER, OLD_LACE, WHITE, BLACK
from audiocore import WaveFile
try:
    from audioio import AudioOut
except ImportError:
    try:
        from audiopwmio import PWMAudioOut as AudioOut
    except ImportError:
        print("This board does not support audio")

# Set up our 10 NeoPixels on our board and call them "pixels"
pixels = neopixel.NeoPixel(board.NEOPIXEL, 10)

colors = [RED, YELLOW, ORANGE, GREEN, TEAL, CYAN, BLUE, PURPLE,
          MAGENTA, GOLD, PINK, AQUA, JADE, AMBER, OLD_LACE, WHITE, BLACK]

# Setup capacitive touch pads
touchpad_A1 = touchio.TouchIn(board.A1)
touchpad_A2 = touchio.TouchIn(board.A2)
touchpad_A3 = touchio.TouchIn(board.A3)

# Audio setup for CircuitPlayground boards - can skip if only using external speaker
speaker = digitalio.DigitalInOut(board.SPEAKER_ENABLE)
speaker.direction = digitalio.Direction.OUTPUT
speaker.value = True

# use speaker location to creat an AudioOut object named audio
audio = AudioOut(board.SPEAKER)

# Setup path & filenames
path = "drumSounds/"

def play_sound(filename):
    with open(path + filename, "rb") as wave_file:  # creates variable wave_file with data from file
        wave = WaveFile(wave_file)  # converts data into a playable WaveFile
        audio.play(wave)  # use audio object to play the WaveFile
        while audio.playing:
            pass  # wait 'til audio is done

while True:
    if touchpad_A1.value:
        pixels.fill(RED)
        play_sound("drum_cowbell.wav")
        pixels.fill(BLACK) # will turn off after sound is done playing
    if touchpad_A2.value:
        pixels.fill(ORANGE)
        play_sound("bd-zome.wav")
        pixels.fill(BLACK)  # will turn off after sound is done playing
    if touchpad_A3.value:
        pixels.fill(YELLOW)
        play_sound("elec_hi_snare.wav")
        pixels.fill(BLACK)  # will turn off after sound is done playing