This project implements a simple alarm clock using an Arduino, a DS1307 real-time clock (RTC), and a buzzer. The current time is displayed on a 16x2 LCD screen, and an alarm is set to activate the ...

The alarm activates in ten seconds once pressing the A button. For police work objects it uses associate unhearable sensing element, and once the alarm detects one thing a buzzer starts emitting a ...

Create a smart blind stick using Arduino to help visually impaired individuals navigate safely. This DIY project uses an ultrasonic sensor, buzzer, and LED indicators to detect obstacles and provide ...

Arduino Alarm System: Design a basic security system using Arduino and a passive infrared (PIR) motion sensor. When motion is detected, the system can sound an alarm using a buzzer or send you a ...

Some uses of Piezo Buzzer: e.g clock alarm, alarms, car/truck reversing indicator, bells, timers etc. So we see that this element is used on a wide area of electronic devices.

Here is an ultra simple Arduino Night Alarm project wired around a handful of inexpensive and easily available components. One advantage of using Arduino as a security system is the flexibility!