mirror of
https://github.com/mjg59/python-broadlink.git
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87 lines
2.6 KiB
Python
87 lines
2.6 KiB
Python
"""Support for universal remotes."""
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import struct
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from .device import device
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from .exceptions import check_error
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class rm(device):
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"""Controls a Broadlink RM."""
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TYPE = "RM2"
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def _send(self, command: int, data: bytes = b'') -> bytes:
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"""Send a packet to the device."""
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packet = struct.pack("<I", command) + data
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resp = self.send_packet(0x6A, packet)
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check_error(resp[0x22:0x24])
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payload = self.decrypt(resp[0x38:])
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return payload[0x4:]
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def check_data(self) -> bytes:
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"""Return the last captured code."""
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return self._send(0x4)
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def send_data(self, data: bytes) -> None:
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"""Send a code to the device."""
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self._send(0x2, data)
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def enter_learning(self) -> None:
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"""Enter infrared learning mode."""
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self._send(0x3)
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def sweep_frequency(self) -> None:
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"""Sweep frequency."""
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self._send(0x19)
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def cancel_sweep_frequency(self) -> None:
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"""Cancel sweep frequency."""
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self._send(0x1E)
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def check_frequency(self) -> bool:
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"""Return True if the frequency was identified successfully."""
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resp = self._send(0x1A)
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return resp[0] == 1
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def find_rf_packet(self) -> None:
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"""Enter radiofrequency learning mode."""
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self._send(0x1B)
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def check_temperature(self) -> float:
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"""Return the temperature."""
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return self.check_sensors()["temperature"]
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def check_sensors(self) -> dict:
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"""Return the state of the sensors."""
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resp = self._send(0x1)
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temperature = struct.unpack("<bb", resp[:0x2])
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temperature = temperature[0x0] + temperature[0x1] / 10.0
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return {"temperature": temperature}
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class rm4(rm):
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"""Controls a Broadlink RM4."""
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TYPE = "RM4"
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def _send(self, command: int, data: bytes = b'') -> bytes:
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"""Send a packet to the device."""
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packet = struct.pack("<HI", len(data) + 4, command) + data
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resp = self.send_packet(0x6A, packet)
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check_error(resp[0x22:0x24])
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payload = self.decrypt(resp[0x38:])
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p_len = struct.unpack("<H", payload[:0x2])[0]
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return payload[0x6:p_len+2]
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def check_humidity(self) -> float:
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"""Return the humidity."""
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return self.check_sensors()["humidity"]
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def check_sensors(self) -> dict:
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"""Return the state of the sensors."""
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resp = self._send(0x24)
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temperature = struct.unpack("<bb", resp[:0x2])
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temperature = temperature[0x0] + temperature[0x1] / 100.0
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humidity = resp[0x2] + resp[0x3] / 100.0
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return {"temperature": temperature, "humidity": humidity}
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