blob: bf002b581b158c4f2e84e349b93587bebc3b9d15 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
|
# SPDX-License-Identifier: LGPL-3.0-or-later
# Copyright (C) 2020 Daniel Thompson
"""Generic PWM capable vibration motor driver
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
"""
import time
from machine import PWM
class Vibrator(object):
"""Vibration motor driver.
.. automethod:: __init__
"""
def __init__(self, pin, active_low=False):
"""Specify the pin and configuration used to operate the motor.
:param machine.Pin pin: The PWM-capable pin used to driver the
vibration motor.
:param bool active_low: Invert the resting state of the motor.
"""
pin.value(active_low)
self.pin = pin
self.freq = PWM.FREQ_16MHZ
self.period = 16000
self.active_low = active_low
def pulse(self, duty=25, ms=40):
"""Briefly pulse the motor.
:param int duty: Duty cycle, in percent.
:param int ms: Duration, in milliseconds.
"""
pwm = PWM(0, self.pin, freq=self.freq, duty=duty, period=self.period)
pwm.init()
time.sleep_ms(ms)
pwm.deinit()
self.pin.value(self.active_low)
|
