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buzzer.py
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#!/usr/bin/python3
from gpiozero import Buzzer
from time import sleep
from sys import argv
class buzz:
def __init__(self, buzzPin, quietMode=False):
self.pin = buzzPin
self.buzz = Buzzer(buzzPin)
self.quietMode = quietMode
def buzz_init(self, buzzPin):
self.buzz = Buzzer(buzzPin)
def quiet(self, mode):
self.quietMode = mode
def set_pin(self, newPin):
self.pin = newPin
self.buzz = Buzzer(newPin)
def notes_range(self, up=True, duration=250):
for x in range(1,1000):
if up:
beepDelay=x
else:
beepDelay=1000-x
times = int(round(duration/beepDelay))
beepDelay = round((beepDelay)/1000, 6)
for y in range(times):
self.buzz.on()
sleep(beepDelay)
self.buzz.off()
sleep(beepDelay)
self.buzz.off()
sleep(0.01) #some delay between notes
def sound(self, note, duration):
#notes etc
notePairs = [['cL', 129], ['cLS', 139],
['dL', 146], ['dLS', 156],
['eL', 163], ['fL', 173],
['fLS', 185], ['gL', 194],
['gLS', 207], ['aL', 219],
['aLS', 228], ['bL', 232],
['c', 261], ['cS', 277],
['d', 294], ['dS', 311],
['e', 329], ['f', 349],
['fS', 370], ['g', 391],
['gS', 415], ['a', 440],
['aS', 455], ['b', 466],
['cH', 523], ['cHS', 554],
['dH', 587], ['dHS', 622],
['eH', 659], ['fH', 698],
['fHS', 740], ['gH', 784],
['gHS', 830], ['aH', 880],
['aHS', 910], ['bH', 933]]
notes = dict(notePairs)
beepDelay = round((1000000/notes[note])) #in miliseconds
times = int(round((duration*1000)/(beepDelay*2)))
beepDelay = round(beepDelay/1000000,6)
if not self.quietMode:
print("note:%d| times: %d| beepDelay[ms]:%f" % (notes[note], times, beepDelay))
for x in range(times):
self.buzz.on()
sleep(beepDelay)
self.buzz.off()
sleep(beepDelay)
#some delay between notes
self.buzz.off()
sleep(0.020)
def play_buzzer(self):
print("beep!")
self.buzz.toggle()
duration = 1/12
sleep(duration)
print(duration)
self.buzz.toggle()
def songs(title="starwars"):
if title == "starwars":
print("--< title: starwars")
song = [("a", 500),
("a", 500),
("f", 350),
("cH", 150),
("a", 500),
("f", 350),
("cH", 150),
("a", 1000),
("eH", 500),
("eH", 500),
("eH", 500),
("fH", 350),
("cH", 150),
("gS", 500),
("f", 350),
("cH", 150),
("a", 1000),
("aH", 500),
("a", 350),
("a", 150),
("aH", 500),
("gHS", 250),
("gH", 250),
("fHS", 125),
("fH", 125),
("fHS", 250),
("delay", 0.250),
("aS", 250),
("dHS", 500),
("dH", 250),
("cHS", 250),
("cH", 125),
("b", 125),
("cH", 250),
("delay", 0.250),
("f", 125),
("gS", 500),
("f", 375),
("a", 125),
("cH", 500),
("a", 375),
("cH", 125),
("eH", 1000),
("aH", 500),
("a", 350),
("a", 150),
("aH", 500),
("gHS", 250),
("gH", 250),
("fHS", 125),
("fH", 125),
("fHS", 250),
("delay", 0.250),
("aS", 250),
("dHS", 500),
("dH", 250),
("cHS", 250),
("cH", 125),
("b", 125),
("cH", 250),
("delay", 0.250),
("f", 250),
("gS", 500),
("f", 375),
("cH", 125),
("a", 500),
("f", 375),
("c", 125),
("a", 1000)]
else:
print("only one song for now :(")
return song
def play_melody(buzz, song):
#buzz is buzzer object
#song is just a two dimension list
print("--< start a song")
for note in song:
if (note[0] == "delay"):
sleep(note[1])
continue
buzz.sound(note[0], note[1])
print("--< song finished")
if __name__=="__main__":
args = argv[1:]
buzz = buzz(12)
buzz.quiet(False)
play_melody(buzz, songs())