def runTest(self):
GPIO.setmode(GPIO.BOARD)
GPIO.setup(LED_PIN, GPIO.OUT)
pwm = GPIO.PWM(LED_PIN, 50)
with self.assertRaises(RuntimeError):
pwm2 = GPIO.PWM(LED_PIN, 49)
GPIO.cleanup()
def issue_94(cycles):
# led flickers. Bug = LED stays off at around cycle 400
pwm = GPIO.PWM(LED_PIN, 1)
for i in xrange(cycles):
print(i)
pwm.ChangeFrequency(25)
pwm.start(50)
time.sleep(1)
pwm.stop()
def issue_154():
# fails with led off at around 400
count = 0
pinRef = GPIO.PWM(LED_PIN, 50) # create new PWM instance
while True:
pinRef.start(10) # update PWM value
time.sleep(0.05)
pinRef.stop()
GPIO.output(LED_PIN, 0)
time.sleep(0.05)
count = count + 1
print count
def runTest(self):
GPIO.setmode(GPIO.BOARD)
GPIO.setup(LED_PIN, GPIO.OUT)
pwm = GPIO.PWM(LED_PIN, 50)
pwm.start(100)
print("\nPWM tests")
response = input('Is the LED on (y/n) ? ').upper()
self.assertEqual(response, 'Y')
pwm.start(0)
response = input('Is the LED off (y/n) ? ').upper()
self.assertEqual(response, 'Y')
print("LED Brighten/fade test...")
for i in range(0, 3):
for x in range(0, 101, 5):
pwm.ChangeDutyCycle(x)
time.sleep(0.1)
for x in range(100, -1, -5):
pwm.ChangeDutyCycle(x)
time.sleep(0.1)
pwm.stop()
response = input('Did it work (y/n) ? ').upper()
self.assertEqual(response, 'Y')
GPIO.cleanup()