def play_liberado(self):
# Inicia buzzer
#GPIO.setup(self.gpio, GPIO.OUT)
buzz = PWM(self.porta, 500) # initial frequency.
buzz.start(50) # Start buzzer pin with 50% duty ration
time.sleep(0.2) # delay a note for beat * 0.5s
# buzz.ChangeFrequency(550) # Change the frequency along the song note
# time.sleep(0.4) # delay a note for beat * 0.5s
buzz.stop() # Stop the buzzer
super().ligar_porta() # Set buzzer pin to High
def __init__(self, pwm0, pwm1, pwm2, pwm3, a0, b0, a1, b1):
"""
"""
# self.mux = MCP230XX(0x20, 16, 1)
#
# for pin in range(0, 15):
# self.mux.config(pin, GPIO.OUT)
# this can be:
# BOARD -> Board numbering scheme. The pin numbers follow the pin numbers on header P1.
# BCM -> Broadcom chip-specific pin numbers.
GPIO.setmode(GPIO.BCM) # Pi cover uses BCM pin numbers, GPIO.BCM = 11
GPIO.setup([pwm0, pwm1, pwm2, pwm3], GPIO.OUT) # GPIO.OUT = 0
freq = 100.0 # Hz
self.motor0 = PWM(pwm0, freq)
self.motor1 = PWM(pwm1, freq)
self.motor2 = PWM(pwm2, freq)
self.motor3 = PWM(pwm3, freq)
self.motor0.start(0)
self.motor1.start(0)
self.motor2.start(0)
self.motor3.start(0)
self.ctl = [a0, b0, a1, b1]
GPIO.setup([a0, b0, a1, b1], GPIO.OUT) # GPIO.OUT = 0
# self.a0 = a0
# self.b0 = b0
# self.a1 = a1
# self.b1 = b1
# GPIO.output(self.a0, GPIO.LOW)
# GPIO.output(self.b0, GPIO.LOW)
# GPIO.output(self.a1, GPIO.LOW)
# GPIO.output(self.a1, GPIO.LOW)
for pin in self.ctl:
GPIO.output(pin, GPIO.LOW)
def led_breathe(pin_no):
"""
Fn to vary the duty cycle to
dim/brighten the leds
"""
pwm = PWM(pin_no, 100) # create object for PWM on port pin_no at 100 Hertz
pwm.start(0) # start led on 0 percent duty cycle (off)
for i in range(101):
pwm.ChangeDutyCycle(
i) # Increase duty cycle from 0% to 100% (step by 1)
time.sleep(0.03)
for i in range(100, -1, -1):
pwm.ChangeDutyCycle(
i) # Decrease duty cycle from 0% to 100% (step by 1)
time.sleep(0.03)
time.sleep(1)
pwm.stop() # stop the PWM output
def stop(duty=0):
straight()
output(20, LOW)
output(22, LOW)
return default_response()
def default(duty=0):
print "Command not found"
stop(0)
straight(0)
p = PWM(17, 90)
p2 = PWM(13, 90)
p.start(50)
p2.start(100)
commands_dict = {"b": backward,
"f": forward,
"s": stop,
"r": right,
"l": left,
"st": straight}
def move(request):
commands_dict.get(request.matchdict['direction'], default)()
return default_response()
