def buzz(self,pitch, duration): #create the function buzz and feed it the pitch and duration)
period = 1.0 / pitch #in physics, the period (sec/cyc) is the inverse of the frequency (cyc/sec)
delay = period / 2 #calcuate the time for half of the wave
cycles = int(duration * pitch) #the number of waves to produce is the duration times the frequency
for i in range(cycles):
self.__gpio.output(self.pin, True) #set pin 18 to high
time.sleep(delay)
self.__gpio.output(self.pin, False)
time.sleep(delay)
evt = Event(Event.EVT_COMPLETE)
evt.target = self
self.dispatchEvent(evt)
return;
def flash(self,times,delay):
for i in range(times):
self.__gpio.output(self.pin,self.__gpio.HIGH)
time.sleep(delay)
self.__gpio.output(self.pin,self.__gpio.LOW)
time.sleep(delay)
evt = Event(SingleColorLed.EVT_FLASH)
evt.target = self
self.dispatchEvent(evt)
evt = Event(Event.EVT_COMPLETE)
evt.target = self
self.dispatchEvent(evt)
return;
def off(self):
self.__gpio.output(self.pin,self.__gpio.LOW)
evt = Event(Event.EVT_OFF)
evt.target= self
self.dispatchEvent(evt)
return;
def on(self):
self.__gpio.output(self.pin,self.__gpio.HIGH)
evt = Event(Event.EVT_ON)
evt.target= self
self.dispatchEvent(evt)
return;
