Arduino Security and Alarm System Project #ArduinoMonday

Nice project from Dejan Nedelkovski up on HowToMechatronics.

The alarm activates in 10 seconds after pressing the A button. For detecting objects it uses an ultrasonic sensor, and once the alarm detect something a buzzer starts emitting a sound.  In order to stop the alarm we need to insert a 4 digits password. The preset password is 1234 but we also have the possibility to change it.

Read more.

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