Here's the plan:
- When the alarm / beeper turns on, the ESP will send a message over the internet.
Here are the problems and how I might solve them:
- beeper signal is not steady
- work with a flip flop to get around that
- maybe use PIN7 on the chip (I/O can also be used to activate escape lights, auxiliary alarms, ...)
- regulator for ESP12 is power hungry (high Quiescent Current)
- use a MOSFET to turn on power to the regulator