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Fix sensor data retrieval for Broadlink A2 devices #826

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Fix sensor data retrieval for Broadlink A2 devices #826

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823ce15
Fix the error to adapt for real A2 requests
kanshurichard Apr 3, 2025
a0e43db
Delete .DS_Store
kanshurichard Apr 3, 2025
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29 changes: 3 additions & 26 deletions broadlink/sensor.py
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Original file line number Diff line number Diff line change
Expand Up @@ -47,39 +47,16 @@ class a2(Device):

TYPE = "A2"

def _send(self, operation: int, data: Sequence = b""):
def _send(self, data: bytes) -> bytes:
"""Send a command to the device."""
packet = bytearray(12)
packet[0x02] = 0xA5
packet[0x03] = 0xA5
packet[0x04] = 0x5A
packet[0x05] = 0x5A
packet[0x08] = operation
packet[0x09] = 0x0B

if data:
data_len = len(data)
packet[0x0A] = data_len & 0xFF
packet[0x0B] = data_len >> 8
packet += bytes(2)
packet.extend(data)

checksum = sum(packet, 0xBEAF) & 0xFFFF
packet[0x06] = checksum & 0xFF
packet[0x07] = checksum >> 8

packet_len = len(packet) - 2
packet[0x00] = packet_len & 0xFF
packet[0x01] = packet_len >> 8

resp = self.send_packet(0x6A, packet)
resp = self.send_packet(0x6A, data)
e.check_error(resp[0x22:0x24])
payload = self.decrypt(resp[0x38:])
return payload

def check_sensors_raw(self) -> dict:
"""Return the state of the sensors in raw format."""
data = self._send(1)
data = self._send(bytes.fromhex("0c00a5a55a5ab9c0010b000000000000"))

return {
"temperature": data[0x13] * 256 + data[0x14],
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