Script to monitor a Govee H5086 smart plug's energy stats over BLE

govee_h5086.py

from bleak import BleakClient
import asyncio

MAC = "XX:XX:XX:XX:XX:XX"
NOTIFY_UUID = "00010203-0405-0607-0809-0a0b0c0d2b10"
WRITE_CHAR_UUID = "00010203-0405-0607-0809-0a0b0c0d2b11"
KEEPALIVE = bytearray.fromhex("aa010000000000000000000000000000000000ab")


def callback(_, data):
    if data[0] != 0xEE:
        return
    volts = int.from_bytes(data[8:10]) / 100
    amps = int.from_bytes(data[10:12]) / 100
    watts = int.from_bytes(data[12:15]) / 100
    print(f"{watts:7.2f}W {amps:5.2f}A {volts:6.2f}V")


async def main():
    async with BleakClient(MAC) as client:
        await client.start_notify(NOTIFY_UUID, callback)
        while True:
            await client.write_gatt_char(WRITE_CHAR_UUID, KEEPALIVE, response=False)
            await asyncio.sleep(2)


asyncio.run(main())