1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
|
"""Leak detector adv parser."""
def process_leak(data: bytes | None, mfr_data: bytes | None) -> dict[str, bool | int]:
"""Process SwitchBot Water Leak Detector advertisement data."""
if data is None or len(data) < 3 or mfr_data is None or len(mfr_data) < 2:
return {}
water_leak_detected = None
device_tampered = None
battery_level = None
low_battery = None
# Byte 1: Event Flags
event_flags = mfr_data[8]
water_leak_detected = bool(event_flags & 0b00000001) # Bit 0
device_tampered = bool(event_flags & 0b00000010) # Bit 1
# Byte 2: Battery Info
battery_info = mfr_data[7]
battery_level = battery_info & 0b01111111 # Bits 0-6
low_battery = bool(battery_info & 0b10000000) # Bit 7
return {
"leak": water_leak_detected,
"tampered": device_tampered,
"battery": battery_level,
"low_battery": low_battery,
}
|
