def init_PWM(_redPin = 23, _greenPin = 24, _bluePin = 25, _flashPin= 22, initDutyCycle = [100]*3, flashRate = 0):
global colorPins, colors, flashActive, flashPin
colorPins = [_redPin, _greenPin, _bluePin] #list for pins used in raspberry pi
wiringpi2.wiringPiSetup() # Initialize using wiringPi pin numbering scheme
for dc in initDutyCycle: #Check for valid initial duty cycle
if dc < 0 or dc > 255: return -1
#Create intial PWM signals for input to LED strip
for i in range(3):
wiringpi2.softPwmCreate(colorPins[i], int(initDutyCycle[i]*100.0/255.0), 100)
#Current RGB values of LED strip
colors = list(initDutyCycle)
#Create square wave for flashing beat
flashPin = _flashPin
wiringpi2.softToneCreate(flashPin)
if flashRate != 0:
wiringpi2.softToneWrite(flashPin, flashRate)
flashActive = True
else:
wiringpi2.softToneStop(flashPin)
flashActive = False
#Use Colors.txt file to create list of preset color options
readColorsFile()
return 0
def setBPM(flashRate):
global flashActive
if flashRate != 0:
if not flashActive:
wiringpi2.softToneCreate(flashPin)
flashActive = True
wiringpi2.softToneWrite(flashPin, flashRate)
else:
if flashActive:
wiringpi2.softToneStop(flashPin)
flashActive = False
