91 lines
2.6 KiB
Python
91 lines
2.6 KiB
Python
"""Support for sensors."""
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from typing import Sequence
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from . import exceptions as e
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from .device import Device
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class a1(Device):
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"""Controls a Broadlink A1."""
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TYPE = "A1"
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_SENSORS_AND_LEVELS = (
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("light", ("dark", "dim", "normal", "bright")),
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("air_quality", ("excellent", "good", "normal", "bad")),
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("noise", ("quiet", "normal", "noisy")),
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)
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def check_sensors(self) -> dict:
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"""Return the state of the sensors."""
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data = self.check_sensors_raw()
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for sensor, levels in self._SENSORS_AND_LEVELS:
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try:
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data[sensor] = levels[data[sensor]]
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except IndexError:
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data[sensor] = "unknown"
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return data
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def check_sensors_raw(self) -> dict:
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"""Return the state of the sensors in raw format."""
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packet = bytearray([0x1])
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resp = self.send_packet(0x6A, packet)
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e.check_error(resp[0x22:0x24])
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data = self.decrypt(resp[0x38:])
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return {
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"temperature": data[0x04] + data[0x05] / 10.0,
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"humidity": data[0x06] + data[0x07] / 10.0,
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"light": data[0x08],
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"air_quality": data[0x0A],
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"noise": data[0x0C],
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}
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class a2(Device):
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"""Controls a Broadlink A2."""
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TYPE = "A2"
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def _send(self, operation: int, data: Sequence = b""):
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"""Send a command to the device."""
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packet = bytearray(12)
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packet[0x02] = 0xA5
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packet[0x03] = 0xA5
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packet[0x04] = 0x5A
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packet[0x05] = 0x5A
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packet[0x08] = operation
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packet[0x09] = 0x0B
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if data:
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data_len = len(data)
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packet[0x0A] = data_len & 0xFF
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packet[0x0B] = data_len >> 8
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packet += bytes(2)
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packet.extend(data)
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checksum = sum(packet, 0xBEAF) & 0xFFFF
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packet[0x06] = checksum & 0xFF
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packet[0x07] = checksum >> 8
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packet_len = len(packet) - 2
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packet[0x00] = packet_len & 0xFF
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packet[0x01] = packet_len >> 8
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resp = self.send_packet(0x6A, packet)
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e.check_error(resp[0x22:0x24])
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payload = self.decrypt(resp[0x38:])
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return payload
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def check_sensors_raw(self) -> dict:
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"""Return the state of the sensors in raw format."""
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data = self._send(1)
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return {
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"temperature": data[0x13] * 256 + data[0x14],
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"humidity": data[0x15] * 256 + data[0x16],
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"pm10": data[0x0D] * 256 + data[0x0E],
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"pm2_5": data[0x0F] * 256 + data[0x10],
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"pm1": data[0x11] * 256 + data[0x12],
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}
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