class BuzzerResource(resource.Resource):
def get_link_description(self):
# Publish additional data in .well-known/core
return dict(**super().get_link_description(),
title=f"Buzzer Resource - pin: {self.pin}")
def __init__(self, pin, active_high=True, initial_value=False):
super().__init__()
self.pin = pin
self.resource = Buzzer(pin,
active_high=active_high,
initial_value=initial_value)
async def render_get(self, request):
payload = f"{self.resource.value}"
print(f'BUZZER {self.pin}: GET')
return Message(payload=payload.encode(), code=Code.CONTENT)
async def render_post(self, request):
payload = request.payload.decode()
print(f'BUZZER {self.pin}: POST {payload}')
if payload in ['0', 'off']:
self.resource.off()
elif payload in ['1', 'on']:
self.resource.on()
elif payload in ['-1', 'toggle']:
self.resource.toggle()
elif 'beep' in payload:
p = payload.split(" ")
if p[0] != 'beep':
return Message(code=Code.BAD_REQUEST)
on_time, off_time, n = 1, 1, None
if len(p) > 1 and p[1].isdigit():
on_time = int(p[1])
if len(p) > 2 and p[2].isdigit():
off_time = int(p[2])
if len(p) > 3 and p[3].isdigit():
n = int(p[3])
self.resource.beep(on_time, off_time, n)
else:
return Message(code=Code.BAD_REQUEST)
return Message(code=Code.CHANGED)
from gpiozero import Buzzer
from time import sleep
buzzer = Buzzer(17)
while True:
buzzer.toggle()
sleep(2)
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()
