[solved] Howto: NFC (PN532) + BT (for Alarmo)?

ESPHome
1

I’m currently using a non-BT version of an ESP device with this NFC reader for (de)activating Alarmo.
This works fine and now I want to add the ability to control Alarmo by integrating a Shelly BLU 1 button.
I don’t have any BT receiver yet so I bought a BT capable ESP device (Wemos C3 mini) for this.

Until now, I have not used BT before, execpt a BT speaker so all this is new to me.
Can anyone please enlighten me which BT component I need to be able to receive commands from the Shelly Blu 1 button?
Additional question: will this also enable the option to connect to it with a mobile device?

2

In case someone else is searching for the same info.

I got a Wemos C3 mini (BT + WiFi) but it seems to underpowered with just a single core.
There is a workaround though which makes it usable.
I configured the C3 as Bluetooth Proxy.

It took some time for my system to pickup the Shelly BLU button1 and suggest to install BTHome.
From there it was just configuring stuff and creating automations. :sparkler:

Another thread with some info on the process: [solved] (Not) Possible to have BT + NFC on 1 ESP device?