def on_key(key_index, is_pressed):
global pattern
if is_pressed:
x, y = keypad.index_to_coords(key_index)
pattern[x + y * 4] = (pattern[x + y * 4] + 1) % 4
if pattern[x + y * 4] == 0:
display.drawPixel(x, y, 0x400000)
tone = 396
elif pattern[x + y * 4] == 1:
display.drawPixel(x, y, 0x004000)
tone = 440
elif pattern[x + y * 4] == 2:
display.drawPixel(x, y, 0x004040)
tone = 495
elif pattern[x + y * 4] == 3:
display.drawPixel(x, y, 0x404000)
tone = 528
display.flush()
sndmixer.freq(synth, tone)
sndmixer.play(synth)
sndmixer.volume(synth, 64)
virtualtimers.new(100, sound_off, False)
def tone(pwm, freq, duration, pause=None):
global i
freq = round(freq)
if not pause:
duration = round(duration * 0.9)
pause = round(duration * 0.1)
if freq < 1:
pwm.duty(0)
sndmixer.freq(i, 0)
else:
pwm.freq(freq)
#pwm.duty(50)
sndmixer.freq(i, freq)
time.sleep_ms(duration)
sndmixer.freq(i, 0)
pwm.duty(0)
time.sleep_ms(pause)
mpr121.set(10, 1) # Calibration resets MPR121, here we re-enable LED power
buzzer_pin = machine.Pin(12, machine.Pin.OUT)
time.sleep(0.01)
buzzer_pwm = machine.PWM(buzzer_pin, duty=50)
sndmixer.begin(2)
synth = sndmixer.synth()
sndmixer.volume(synth, 50)
sndmixer.waveform(synth, 1)
while True:
buzzer_pwm.duty(50)
buzzer_pwm.freq(500)
sndmixer.freq(synth, 500)
neopixel.send(bytes([0xFF, 0, 0] * 12))
time.sleep(0.25)
buzzer_pwm.freq(600)
sndmixer.freq(synth, 600)
neopixel.send(bytes([0, 0xFF, 0] * 12))
time.sleep(0.25)
buzzer_pwm.freq(800)
sndmixer.freq(synth, 800)
neopixel.send(bytes([0, 0, 0xFF] * 12))
time.sleep(0.25)
buzzer_pwm.freq(500)
sndmixer.freq(synth, 500)
neopixel.send(bytes([0xFF, 0, 0] * 12))
time.sleep(0.25)
buzzer_pwm.freq(600)
from machine import Pin, PWM, random
import time
import sndmixer
sndmixer.begin(2)
i = sndmixer.synth()
sndmixer.freq(i, 0)
sndmixer.volume(i, 10)
def tone(pwm, freq, duration, pause=None):
global i
freq = round(freq)
if not pause:
duration = round(duration * 0.9)
pause = round(duration * 0.1)
if freq < 1:
pwm.duty(0)
sndmixer.freq(i, 0)
else:
pwm.freq(freq)
#pwm.duty(50)
sndmixer.freq(i, freq)
time.sleep_ms(duration)
sndmixer.freq(i, 0)
pwm.duty(0)
time.sleep_ms(pause)
def play(pwm, song):