alarm

Interfacing E18-D80NK IR Proximity Sensor with Arduino Interfacing E18-D80NK IR Obstacle Avoidance Proximity Sensor with Arduino

An infrared sensor is an electronic module that is used to detect the certain physical appearance of its surroundings by either…

Wailing Siren Circuit using a 555 Timer IC Building a Wailing Siren Circuit using a 555 Timer IC

If you are an electronics hobbyist then you must have heard about the 555 timer IC and its 3 popular circuits viz. astable…

DIY Rain Detector using Arduino and Rain Sensor Rain Detection System using Arduino and Rain Sensor

A simple Rain Detection System can be easily built by interfacing an Arduino with Rain Sensor. The sensor will detect any…

Automatic Light Fence Circuit with Alarm Automatic Light Fence Circuit with Alarm

Light fence circuit is used to detect the presence of any human or object in a particular area. The detecting range of Light…

Mains Power Supply Failure Alarm Circuit Mains Power Supply Failure Alarm Circuit

Although there are inverters and generators to immediately start the AC power supply whenever there is a power cut but sometime…

Medicine Reminder Using Arduino Automatic Medicine Reminder Using Arduino

When it comes to our loved ones, we always want to stay them healthy and fit. But what will happen if they get ill and forget…

IoT based Door Security Alarm controlled by Google Assistant IoT based Door Security Alarm controlled by Google Assistant

According to the FBI, home burglary occurs for every 13 seconds and 3 out of 4 homes in US will be broken into within the next…

Interfacing Flame Sensor with Arduino Interfacing Flame Sensor with Arduino to Build a Fire Alarm System

Fire Alarm Systems are very common in commercial building and factories, these devices usual contain a cluster of sensors that…

Fridge Door Alarm Circuit using 555 and LDR Fridge Door Alarm Circuit using 555 and LDR

The name of the circuit itself infers the application. This circuit triggers the alarm if the door of Fridge is left open for…

Panic Alarm Circuit using 555 Timer IC Panic Alarm Button Circuit using 555 Timer IC

A Panic Alarm Circuit is used to send an emergency signal immediately to the people in nearby location to call for help or to…