def main(addon):
badge.show_bitmap('drivers/assets/speaker.bmp')
audio = PWMOut(board.GPIO1,
duty_cycle=0,
frequency=440,
variable_frequency=True)
led = digitalio.DigitalInOut(board.GPIO2)
led.switch_to_output(True)
try:
for (notename, eigths) in sequence:
length = eigths * 0.1
if notename:
led.value = False
audio.frequency = round(note(notename))
audio.duty_cycle = 0x8000
time.sleep(length)
led.value = True
audio.duty_cycle = 0
time.sleep(0.025)
time.sleep(3)
finally:
led.deinit()
audio.deinit()
import neopixel
from digitalio import DigitalInOut, Direction, Pull
from analogio import AnalogIn
from pulseio import PWMOut
import audioio
import touchio
import simpleio
import random
# One pixel connected internally!
dot = neopixel.NeoPixel(board.NEOPIXEL, 1, brightness=0.08)
# pizeo buzzer
buzzer = PWMOut(board.D5, variable_frequency=True)
buzzer.frequency = 262
OFF = 0
ON = 2**15
# Digital input with pullup on D2, D3, D4, D5, D6
buttons = []
for p in [board.D6, board.D9, board.D10, board.A3, board.A4]:
button = DigitalInOut(p)
button.direction = Direction.INPUT
button.pull = Pull.UP
buttons.append(button)
# Digital output on D8, D9, D10, D11, D12
buttonLeds = []
for p in [board.D11, board.D12, board.D13, board.A1, board.A2]:
import time
import neopixel
from digitalio import DigitalInOut, Direction, Pull
from analogio import AnalogIn
from pulseio import PWMOut
import audioio
import touchio
import simpleio
import random
# One pixel connected internally!
dot = neopixel.NeoPixel(board.NEOPIXEL, 1, brightness=0.08)
# pizeo buzzer
buzzer = PWMOut(board.D5, variable_frequency=True)
buzzer.frequency = 262
OFF = 0
ON = 2**15
# Digital input with pullup on D2, D3, D4, D5, D6
buttons = []
for p in [board.D6, board.D9, board.D10, board.A3, board.A4]:
button = DigitalInOut(p)
button.direction = Direction.INPUT
button.pull = Pull.UP
buttons.append(button)
# Digital output on D8, D9, D10, D11, D12
buttonLeds = []
for p in [board.D11, board.D12, board.D13, board.A1, board.A2]:
buttonLed = DigitalInOut(p)
'''
#导入相关模块
import board
from pulseio import PWMOut
import time
#PWM构建，蜂鸣器引脚A4. frequency值必须大于3，否则报错
PWM = PWMOut(board.A4,
duty_cycle=32768,
frequency=200,
variable_frequency=True)
#循环发出不同频率响声。
while True:
PWM.frequency = 200
time.sleep(1)
PWM.frequency = 400
time.sleep(1)
PWM.frequency = 600
time.sleep(1)
PWM.frequency = 800
time.sleep(1)
PWM.frequency = 1000
time.sleep(1)