Speaker relay
Again and again standing up to turn on the bluetooth speaker tends to get in the way when done regularly so I have this tribit speaker and a jbl one that are designed to turn off after 15minutes of inactivity, which isn’t suitable for me as when working on desk, it can go inactive for more than 15 alot of time.
Not just that most devs or any person would have just a speaker always on in background, just to trigger music when one wants.
So I just got a relay and a cheap esp D1 Mini, got it wired in a way that ground wire is cut up for open and close one, red one would be direct. Let me just show :