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73 lines
2.3 KiB
Python
73 lines
2.3 KiB
Python
# Copyright (c) Quectel Wireless Solution, Co., Ltd.All Rights Reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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import _thread
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import osTimer
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from machine import Pin
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from usr.logging import getLogger
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log = getLogger(__name__)
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class LED(object):
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def __init__(self, GPIOn, direction=Pin.OUT, pullMode=Pin.PULL_DISABLE, level=0):
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self.__gpio = Pin(GPIOn, direction, pullMode, level)
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self.__period = 0
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self.__led_timer = osTimer()
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self.__led_lock = _thread.allocate_lock()
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def __led_timer_cb(self, args):
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self.switch()
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def get_period(self):
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return self.__period
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def set_period(self, period):
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if isinstance(period, int) and period >= 0:
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self.__period = period
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return True
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return False
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def led_timer_start(self):
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# __period is 0, not start led timer and stop led timer.
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if self.__period > 0:
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self.led_timer_stop()
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if self.led_timer.start(self.__period, 1, self.__led_timer_cb) == 0:
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return True
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return False
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def led_timer_stop(self):
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return True if self.__led_timer.stop() == 0 else False
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def get_led_status(self):
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# TODO: Get LED Status From Pin
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# Return:
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# 1 LED ON (high level).
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# 0 LED OFF (low level).
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with self.__led_lock:
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return self.__gpio.read()
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def set_led_status(self, onoff):
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# TODO: Set LED Status
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with self.__led_lock:
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return True if self.__gpio.write(onoff) == 0 else False
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def switch(self):
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# Auto Check LED Status ON To OFF or OFF To ON.
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if self.get_led_status() == 1:
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self.set_led_status(0)
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else:
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self.set_led_status(1)
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