README.md

SecureDoors

Alarm for your door with SMS or call notification

There are two versions of this project

1. main.ino
   1. Makes X calls as a notification
   2. Disarmed state is active until door is closed
2. alt.ino
   1. Sends an sms as a notification
   2. Disarmed state is active for declared time

You can use those files to modify behaviour of this device

Technical differences between those files

The main differences are in the toggle_alarm function. main.ino file has also a function called hang_up_call which does not appear in alt.ino file.

What such device should do

• When door is opened (REED SWITCH IS OPENED)
  • Makes X calls (You specify duration and count of those)
  • Turns on a siren (You specify a delay between opening a door and toggling a siren and the duration of the alarm)
• When disarm button is pressed
  • Disarms the alarm

Parts used for this project

• Arduino Nano (or UNO, It's basically the same)
• Reed Switch (Normally closed)
• Siren (Or any other sound emmiter working by applying voltage)
• SIM800L EVB 2.0 GSM module.
• 1CH Relay (Low level trigger)
• Pushbutton
• Battery, or any other power source (Prefferably 12V)
• Step-down converter (On output 5V and min. 2.2A)

Libraries used for this project

• SoftwareSerial.h (https://www.arduino.cc/en/Reference/SoftwareSerial)
  • Note: This library is installed with Arduino IDE

Schematics and diagrams

Diagram

Schematics

Not yet released