Home Assistant working with a smart coffee scale?

Hardware
1

Hi,
I was wondering if it would be possible to connect a smart scale like the Skale 2 through Bluetooth with Home Assistant.

My goal would be to shut down my espresso grinder when a certain amount of coffee is in the portafilter on the scale. The automation for it should be pretty easy, I just haven´t found anything online about adding a smart scale to Home Assistant yet.

Thanks in advance!

2

Since it’s bluetooth you are probably going to have to cook up your own integration for it since the BT commands are going to be unique to that device. To my knowledge there is no built-in way to generically connect to a BT device and send commands. There are lots of things that talk to BT (such as Room-Assistant) but require something to be written specifically for that purpose.

So to answer your question: yes, you could probably connect to the smart scale (so long as you could get a list of all the BT commands it accepts), but nobody has written one yet that I can see. But that’s the nice thing about open-source, it’s probably only a matter of time before someone does it!

1 Like
3

I would look at the new BLE code in esphome. BLE Client Sensor — ESPHome

1 Like
4

Thank you for your answer. It really helped understanding this matter. I was hoping that someone already tried something similar. I will keep on looking for a possible solution but I guess Bluetooth devices aren´t meant to work out of the box or with little tweaks to make it work.
Have a great weekend!

5

I found the ble api specification for the Skale 1 and 2.
And also look for a way to add this, perhaps by a esphome ble-proxy…