The Intrusion Detector is ... determine the distance between objects. When an object comes within a predefined distance of the sensor, it triggers the Buzzer/Led. It is also easy to upgrade and change ...

This change affects the resonant frequency of the LC circuit ... The Arduino reads the voltage across the capacitor through the analog input pin. This voltage is proportional to the change in ...

This photoreceiver is connected with a potentiometer to form a voltage divider circuit, which gives a variable analog output when blinking activity is detected ... the RF receiver is fed to the ...

can be connected to any digital pin of the Arduino. If the buzzer needs more than 5V, then try to connect a relay circuit or a transistor and then connecting the load to it. We have covered a separate ...

Abstract: The paper aims to design and implement a low cost and reliable quiz buzzer system with the help of Arduino and seven segment display for easier detection of contestants ... It will need a ...

One of the essential parts of any home security system is a door detector that lets you know ... The system here uses a cheap Arduino board, a few sensors, and a magnetic contact switch.

This paper deals with the development of a Social Distance Detector ... Arduino Simulator created by Soft logic to simulate and assemble. The sensors and tools make the circuit working by embedding ...