55 lines
1.8 KiB
Python
55 lines
1.8 KiB
Python
import serial
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import time
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from threading import Thread
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class access_control:
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_in_payloads = []
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_read_buffer = []
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_door_state: bool = 0
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serial_adapter: serial.Serial
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def __init__(self, serial_port: str):
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self.serial_adapter = serial.Serial(serial_port,baudrate=115200)
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Thread(target=self.read_serial).start()
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Thread(target=self._process_payload).start()
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def read_serial(self):
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while True:
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if self.serial_adapter.in_waiting:
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in_byte = self.serial_adapter.read(1)
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if(in_byte==b'\xFF'):
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self._in_payloads.append(self._read_buffer)
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self._read_buffer = []
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else:
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self._read_buffer.append(in_byte)
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def _process_payload(self):
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while True:
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self._process_payload_once()
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def _process_payload_once(self):
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if(len(self._in_payloads)>0):
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payload = self._in_payloads.pop(0)
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if(payload[0]==b'\x01'):
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if(payload[1]==b'\x00'):
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self._door_state = True
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elif(payload[1]==b'\01'):
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self._door_state = False
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def light_on(self):
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packet = bytearray()
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packet.append(0x00)
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packet.append(0x01)
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packet.append(0xFF)
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self.serial_adapter.write(packet)
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def light_off(self):
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packet = bytearray()
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packet.append(0x00)
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packet.append(0x00)
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packet.append(0xFF)
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self.serial_adapter.write(packet)
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def _request_door_state(self):
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packet = bytearray()
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packet.append(0x01)
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packet.append(0xFF)
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self.serial_adapter.write(packet)
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def get_door_state(self) -> bool:
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self._request_door_state()
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time.sleep(0.25)
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return self._door_state |