Rasp Pi Bluetooth Communication

We have a potential client asking about creating a small device that can accept commands via bluetooth and act on them by lighting an LED or vibrating. Does anybody have any recommendations/advice.

I would do that with an esp32 dev board instead of a Pi which is overkill for this application, except there are lots of other things to implement ?

agree, pi is a device with operation system,
arduino boards just run a small app.

you can start here:

There is ways to control it via terminal (e.g. shell class).

More on it here:

Hi Tim,

Your customer is likely to add more feature requests. An arduino may be harder to deal with, but the RPi will work with unforeseen new features.


how small ? can it be a raspberry pi zero 2w ?
does it need to bluetooth?