My project is very simple, the goal is to replicate all the functions of a real alarm system in the best way. The system is currently composed of: - Raspberry Pi 3 Mod B + / Domoticz - Sonoff RF Bridge + Tasmota - Huawei e3531 + Sim Thingmobile - 2 Door sensor - 2 motion sensors - 1 buzzer - 1 UPS ...