Comments (6)
I've also built a BLE to MQTT bride to use the Kettle and more ble things with Home Assistant. Autodiscovery works, but HA currently doesn't have a proper device class for it so it's just a sensor with attributes and mqtt services you can call to set stuff.
https://github.com/Hypfer/Cybele
https://github.com/Hypfer/Cybele/blob/master/docs/devices/MiSmartKettle.md
I'm currently evaluating measures to get it to work sorta-reliably since bluetooth adapters are a pain.
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Hello, I published the module to pypi and added custom_component for HA. I don't plan on releasing domoticz component. Feel free to copy and modify my code, maybe take a look at https://github.com/drndos/mikettle-ha
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@Hypfer can this bluetooth to mqtt bridge be used outside of HA?
Also I can't seem to get this working. Do the Kettle needs to be paired to a device or in pairing mode? However I think this doesn't really matter in BLE right? The README says a Bluetooth dongle is needed. Can I use RPi integrated Bluetooth (on RPi4 it has Bluetooth 5 with LE)?
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It's MQTT so you can use it whereever you like. Topics + Payloads are documented here:
https://github.com/Hypfer/Cybele/blob/master/docs/devices/MiSmartKettle.md#mqtt
The kettle can't be paired. There are BLE-devices which can, but Viomi opted for their own proprietary handshake foo here.
The readme recommends a usb bluetooth adapter. You can use the RPi integrated bluetooth but it will fail eventually which then forces you to reboot since there is no other way to reset the HCI Adapter.
Using USB HCI adapters is a hack to overcome this issue by (utilizing a uhubctl-compatible hub) giving us a way to forcefully reset the adapter without rebooting the whole host.
Thats what's mentioned here:
https://github.com/Hypfer/Cybele/blob/master/docs/index.md#hardware-recommendations
RPi 4 uses the same bluetooth chip as RPi 3. They just patched the version string to Bluetooth 5 for some reason. Recommended talk:
https://media.ccc.de/v/2019-185-playing-with-bluetooth
As for connectivity issues I recommend moving the kettle closer, checking that the correct productId is used and also if you can see it advertising at all. Note that only one device can connect to it at a time. It will stop advertising itself while connected.
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Thanks! My problem might be that I just tried it with the RPi integrated BLE. I will buy an adapter and see with that. Does it matter what adapter is used? I found some inexpensive ones online which uses a Broadcom chip (only BLE 4.0).
Thanks for the docs, I haven't found your project, this will suit my exceptations fully if I can get it working.
Just a few questions I don't understand:
- how it will know when the device is online or offline? Offline means when it is not plugged in, or if it's on its base but not used right now?
- So basically how should I try connecting? I have cleared the pairings with the Kettle so it doesnt connect now to any device.
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I have no idea. Some adapters seem to work okay-ish, others fail completely.
The kettle doesn't have a battery or any other energy source. Therefore it is only connectable while on its base.
I don't understand the second question :(
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Related Issues (11)
- Hello. HOT 1
- Bluetooth command failed (code: 3, error: Attribute can't be written)
- Wrong Handle numbers for my Kettle (Mijia Kettle Pro) HOT 4
- Mi Smart Kettle Pro
- Failed to connect to peripheral HOT 2
- tf is a productID
- How does one figure out a product ID? HOT 8
- Sensor won't update only one time after restart Home asistant
- connection loss when getting data HOT 1
- strange value (non-hex) in DEBUG parse data
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