Projet en DIY :
https://partofthething.com/thoughts/raspberry-pi-home-assistant-diy-burglar-alarm/
http://diy-ha.com/2014/01/23/hack-your-homes-alarm-system-with-raspberry-pi-netduino/
Home alarm system retrofit
PRIVATEEYEPI – A DIY HOME ALARM SYSTEM
https://www.raspberrypi.org/blog/privateeyepi-a-diy-home-alarm-system/
DIY Zone Door Sensor to send push notification using esp8266
https://myelectronicslab.com/tutorial/door-sensor-with-push-notification-using-esp8266-nodemcu/
Low Power Door/window Sensor
http://www.instructables.com/id/Low-power-doorwindow-sensor/