Do you leave your door unlocked but sometimes wonder if people are entering your room? Well then this is the project for you. This is a home automated security system set up with a sensor that will detect motion and send a message to your phone alerting you. The first circuit that was built is made with a photon and PIR sensor shown below. This sensor will be set inside your room by the door and will pick up any motion as the door opens or someone walks part it.
The second circuit for this security system will be a switch that you can put anywhere you would like. This circuit had a green and red led indicating if the PIR sensor is alarmed or not. With the push of a button you can arm or disarm the sensor so you can walk past without triggering it.
When you push "A" on the pad the LED light will change. With your security system armed and tripped you can start to question people where they were at a certain time in the day with evidence sent to your phone.
Graph Showing when the switch is turned off and on