AVR ATMEL + GSM + GPS. Security alarm using SMS messages.

Attention! All earned funds will go to support the Ukrainian army in the fight against Russian invaders.

This course is about how to make a remote alarm of the house (home, summer cottage, office, warehouse, industrial buildings). We will use a mobile connection channel to exchange the data. The use of mobile connection will allow us to monitor the state of the object in any place (if mobile connection is available) at any time of the day. You can monitor the sensors on the doors and windows, smoke sensors and so on. So, your mobile phone turns into a security alarm panel that is always with you.

You can monitor not the sensors state only. In addition, you can monitor other parameters, such as indoor or outdoor temperature.

The transmission and receiving information will be carried out using SMS messages. With the help of SMS messages, you can control various devices on any distance – lighting, heating, and so on.

To work in the GSM network, we will use a cheap GSM module SIM800L. For this module control, we will use microcontroller ATMEL AVR Atmega32. Microcontroller will collect all information from the sensors and send it to GSM module. From other hand, microcontroller will receive the commands from GSM module and turn on or turn off the various devices.