By reading different values from the sensor, we can detect if is it light , dark or a value between them. Another element that we are going to use on this experiment is Piezo Buzzer. So what is it ?

Here is an ultra simple Arduino Night Alarm project wired around a handful of ... output when an object comes close to the sensor. This sensor only responds to 38 KHz modulated infrared light which ...

These change pulses are what is detected. /* Chase * Motion Detection * PIR sensor tester */ int buzz = 8; // choose the pin for the buzzer int inputPin = 2; // choose the input pin (for PIR sensor) ...

Supplies needed ELEGOO Mega R3 or Arduino Mega 2560 REV3 Passive Buzzer LCD1602 Module 4x4 Matrix Array Membrane Switch Keypad Ultra Sonic Sensor Female-to-Male Dupont ... Once the system was armed, a ...

Check the below project to measure the distance of any object and to properly understand the Ultrasonic sensor working: Working this Arduino Door Alarm is very easy. Whenever anyone comes in the ...

We'll configure the Arduino such that the LED and buzzer both turn on when Gas is detected ... Please bear in mind that we are just processing analog data from the Sensor; the module's inbuilt LED ...

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.

This article is about making an intruder alarm using Arduino and PIR sensor. When the PIR sensor will detect an intruder, it will send a signal to Arduino and the Arduino will sound an alarm. This ...

Here is a simple and inexpensive Arduino based motion sensor alarm with voice alert. It can be used for security purposes. Typically, for outdoor monitoring, motion sensor alarm consists of a PIR ...