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change default servo pulse range from 1000-2000 to 550-2400 #8

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Merged
merged 1 commit into from
Jun 28, 2018
Merged

change default servo pulse range from 1000-2000 to 550-2400 #8

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4 changes: 2 additions & 2 deletions adafruit_motor/servo.py
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Original file line number Diff line number Diff line change
Expand Up @@ -40,7 +40,7 @@ class _BaseServo: # pylint: disable-msg=too-few-public-methods
:param ~pulseio.PWMOut pwm_out: PWM output object.
:param int min_pulse: The minimum pulse length of the servo in microseconds.
:param int max_pulse: The maximum pulse length of the servo in microseconds."""
def __init__(self, pwm_out, *, min_pulse=1000, max_pulse=2000):
def __init__(self, pwm_out, *, min_pulse=550, max_pulse=2400):
self._min_duty = int((min_pulse * pwm_out.frequency) / 1000000 * 0xffff)
max_duty = (max_pulse * pwm_out.frequency) / 1000000 * 0xffff
self._duty_range = int(max_duty - self._min_duty)
Expand All @@ -64,7 +64,7 @@ class Servo(_BaseServo):
duty in degrees.
:param int min_pulse: The minimum pulse length of the servo in microseconds.
:param int max_pulse: The maximum pulse length of the servo in microseconds."""
def __init__(self, pwm_out, *, actuation_range=180, min_pulse=1000, max_pulse=2000):
def __init__(self, pwm_out, *, actuation_range=180, min_pulse=550, max_pulse=2400):
super().__init__(pwm_out, min_pulse=min_pulse, max_pulse=max_pulse)
self._actuation_range = actuation_range
self._pwm = pwm_out
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4 changes: 2 additions & 2 deletions examples/continuous_servo.py
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Expand Up @@ -19,11 +19,11 @@
# pca = PCA9685(i2c, reference_clock_speed=25630710)
pca.frequency = 50

# The pulse range is 1000 - 2000 by default.
# The pulse range is 550 - 2400 by default.
servo7 = servo.ContinuousServo(pca.channels[7])
# If your servo doesn't stop once the script is finished you may need to tune the
# reference_clock_speed above or the min_pulse and max_pulse timings below.
# servo7 = servo.ContinuousServo(pca.channels[7], min_pulse=1000, max_pulse=2000)
# servo7 = servo.ContinuousServo(pca.channels[7], min_pulse=550, max_pulse=2400)

print("Forwards")
servo7.throttle = 1
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2 changes: 1 addition & 1 deletion examples/servo_sweep.py
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Expand Up @@ -33,7 +33,7 @@
# This is an example for the Micro servo - TowerPro SG-92R: https://www.adafruit.com/product/169
# servo7 = servo.Servo(pca.channels[7], min_pulse=500, max_pulse=2400)

# The pulse range is 1000 - 2000 by default.
# The pulse range is 550 - 2400 by default.
servo7 = servo.Servo(pca.channels[7])

# We sleep in the loops to give the servo time to move into position.
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