ESP8266 Community Forum

I've completed a project using the ESP-01 which monitors door open LEDs on an old alarm panel. If an alarm panel LED indicates an open door then the ESP-01 connects to the router and sends a http post to IFTTT.com. IFTTT.com then sends an email or sms on receipt of the http post. The ESP-01 is only connected to the router briefly every 4 hours to check access or to send door open events. Current consumption is ~15mA by keeping the ESP-01 RF section off most of the time. It consumes ~70mA when router access has failed. At that point the ESP-01 functions as an access point to provide a configuration page for entry new router connection parameters via a browser on a laptop or phone. This project was inspired by this tutorial - http://randomnerdtutorials.com/door-status-monitor-using-the-esp8266/.

The code and schematic are at https://github.com/mrcodegh/ESP8266_Alarm.