Add Config-Switch "PASSIVE_BUZZER"

[der-tommy]

Add Config-Switch "PASSIVE_BUZZER" for changing between active or passive buzzer/piezo

[uncodead]

Did you make modifications on platformio.ini?

[der-tommy]

Hi Bruno,

when not setting this config-switch in platform.ini BrewUno works as it was initially set up. When setting it, it creates the tone() for a passive buzzer/piezo.

So there is no need to change the platform.ini for that. But I could add it there and comment in out (default behaviour). How is the project handling other optional “ifdef” in platform.ini?

Kind regards

[der-tommy]

can you please complete this PR or is there ay todo from my site?

[uncodead]

does this PR still make sense?

[der-tommy]

yes it makes sense in my opinion. There are electrical active or passive buzzer which you can buy. Then you could easily build your device with both types.