Persnonal Project where I programmed and wired an embedded system using an Arduino ATMega328 microcontroller in C/C++ to detect an object crossing the line-of-sight of an HC-SR04 sensor at a set ...

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 ...

It’s an electronic device commonly used to produce and signaling a procces that is happening through a sound, beep or etc. The Piezo buzzer produces sound through electricity. Some uses of Piezo ...

This Arduino Controlled Door alarm can be installed near the door to detect the presence of anybody at the door. Whenever somebody comes in the range of Ultrasonic sensor, buzzer starts beeping. You ...

The circuit of Arduino-based shadow alarm is shown in Fig. 1. It consists of an Arduino board, power supply, light-dependent resistor (LDR) sensor, buzzer, relay driver and a few other components.

Power up the sensor through Arduino and connect the A0 pin of the sensor to A5 of Arduino. Connect a buzzer and an LED in a parallel configuration. Connect their one end to the ground of Arduino and ...

Make sure to connect positive pin(+) of buzzer to Arduino digital pin 7 and negative pin(-) to Arduino GND. In same cases, you may want to connect 100ohm series resistor between buzzer positive(+) pin ...

Download the latest version of Arduino IDE from Arduino. Connect your Arduino Nano board to your laptop and open the control panel. in the control panel, click on Hardware and Sound.Now click on ...

Prototype was constructed & tested using “Arduino UNO-R3” board; Sketch created,compiled & uploaded (to Arduino board) using Arduino IDE0022; Piezo-Speaker in the circuit is a “passive piezo-speaker”.