Datasheet

Try it out! When you tap the capacitive pads, the corresponding drum sample is triggered!!

Things are a bit crammed, admittedly, so you can try adding foil, copper tape, alligator clips, etc. in order to increase

the surface area and physical space you have for your drumming!

# Playground 808

# Drum machine

import time

import audioio

import board

import touchio

from digitalio import DigitalInOut, Direction

bpm = 120 # beats per minute, change this to suit your tempo

# enable the speaker

spkrenable = DigitalInOut(board.SPEAKER_ENABLE)

spkrenable.direction = Direction.OUTPUT

spkrenable.value = True

# make the input cap sense pads

capPins = (board.A1, board.A2, board.A3, board.A4, board.A5,

board.A6, board.A7)

touchPad = []

for i in range(7):

touchPad.append(touchio.TouchIn(capPins[i]))

# The seven files assigned to the touchpads

audiofiles = ["bd_tek.wav", "elec_hi_snare.wav", "elec_cymbal.wav",

"elec_blip2.wav", "bd_zome.wav", "bass_hit_c.wav",

"drum_cowbell.wav"]

a = audioio.AudioOut(board.A0)

def play_file(filename):

print("playing file " + filename)

f = open(filename, "rb")

wave = audioio.WaveFile(f)

a.play(wave)

time.sleep(bpm / 960) # sixteenthNote delay

while True:

for i in range(7):

if touchPad[i].value:

play_file(audiofiles[i])