Hello!
I am in the very early stages of this new project of mine, and have already hit a bit of a roadblock.
My end goal is the following: To have a tiny wireless button that can, when pressed, run a HomeAssistant automation.
In the beginning, I was thinking of using a ESP micro-controller in the button, and having it send a POST request to HA when the button was pressed. This is still my preferred method to do this, but I eliminated it because it would require three AA batteries to power, and that would make the button too big for what I am aiming for.
Since HTTP POST requests does not seem like a viable option, I decided to check out Bluetooth. My idea was to have a board in the button unit that sends a Bluetooth signal to either HA, or a Bluetooth receiver (Another Raspberry Pi) that would trigger the automation. I am struggling a bit to find a Bluetooth board that can run for awhile on a button-cell though.
In my Google searches, I found that something like MTQQ might work for sending and receiving the Bluetooth request, but am really confused as to how.
Right now, I am basically looking for a clear path as to how I can accomplish this. What hardware would I need, and how would it communicate with the appropriate devices?
Thanks in advance!
