52 lines
1.3 KiB
Python
52 lines
1.3 KiB
Python
import threading
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from threading import Thread
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from typing import Callable
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from serial import Serial
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class SerialReader:
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serial : Serial = None
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_thread : Thread | None = None
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_listeners : list[Callable] = None
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def __init__(self, port, baudrate):
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self.serial = Serial(port, baudrate)
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self._run_event = threading.Event()
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self._listeners = []
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def start(self) -> None:
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self._run_event.set()
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if self._thread is None or not self._thread.is_alive():
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self._thread = Thread(target=self._read, daemon=True)
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self._thread.start()
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def stop(self) -> None:
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if self._run_event.is_set():
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self._run_event.clear()
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def subscribe(self, listener : Callable[[str], None]) -> None:
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self._listeners.append(listener)
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def _notify(self, data : str):
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for listener in self._listeners:
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listener(data)
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def _read(self):
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while self._run_event.is_set():
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line = self.serial.readline()
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if line:
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print("Generic method")
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data = line.decode('utf-8', errors='ignore')
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self._notify(data)
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if __name__ == "__main__":
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def callback(data):
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print(data)
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reader = SerialReader("/dev/ttyUSB1", 57600)
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reader.subscribe(callback)
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reader.start()
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