chefiq-ble

Passive Bluetooth Low Energy advertisement parser for Chef iQ wireless cooking probes (CQ50 / CQ60), built for use with the Home Assistant bluetooth passive update framework.

The probe broadcasts everything needed to read temperatures over plain BLE advertisements - no connection, no cloud, no base/hub required.

Install

pip install chefiq-ble

Usage

from chefiq_ble import ChefIqBluetoothDeviceData

device = ChefIqBluetoothDeviceData()
update = device.update(service_info)  # a BluetoothServiceInfo / BluetoothServiceInfoBleak
for key, value in update.entity_values.items():
    print(key.key, value.native_value)

What it parses

A Chef iQ probe rotates three advertisement packet types in its manufacturer specific data (company id 0x05CD). The low nibble of the first byte selects the type; the remaining header nibbles encode a major.minor.patch advertisement protocol version.

All 16-bit temperatures are signed, little-endian, divided by 10 (Celsius).

Advertisement formats

Three temperature-payload layouts are supported, selected by the protocol version carried in the advertisement:

• V3 - verified against a CQ60 (protocol version 5.0.0).
• V2 and legacy - supported from the protocol description but not yet verified against real hardware. Captures from a CQ50 or an older-firmware probe are welcome to confirm the layouts and the version dispatch boundaries.

This library decodes the probe's public BLE advertisements for interoperability and builds on the earlier Chef iQ work in ble_monitor. The byte layouts are documented in parser.py.

License

MIT