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 ...

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Here is a simple general-purpose security alarm circuit built on the Arduino platform. It brings up an obtrusive alert signal when an intrusion/theft attempt is observed by its front-end sensor. In ...

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.

These sensors send data to an Arduino Uno R3 microcontroller and utilize it to determine the gas concentration and trigger security precautions. When the concentration exceeds a threshold, then it ...

In recent years, with the increasingly serious problem of environmental pollution, the demand for real-time monitoring and early warning systems in homes and industrial places has been increasing. The ...