What if you could get an instant SMS alert the moment a fire or smoke is detected at home or office? Through this project ...

There’s a huge market for 433 MHz alarm system hardware out there ... From there, the code on the ESP can fire off using whatever API works for your purposes. In this case [Aaron] is using ...

He’s using an Arduino Uno and an Ethernet breakout board to hook it up to the network. This allows him to send text messages to himself when the alarm system is armed, disarmed, or triggered.

If your security system works with third-party accessories, you can link your Arduino alarm to that system ... very easy for ...