Introduction A Password Protected Security System is an electronic security solution that allows access only when the correct password is…

Introduction An RFID Door Lock System is an electronic security system that allows access using RFID cards or tags. Instead…

Introduction An Ultrasonic Distance Meter is an electronic device used to measure the distance between the sensor and an object…

Introduction A Digital Thermometer is an electronic device used to measure and display temperature in digital form. Unlike analog thermometers,…

Introduction An Automatic Hand Sanitizer is a touchless hygiene system that dispenses sanitizer automatically when it detects a hand near…

Introduction A Smart Dustbin is an automated waste management system that opens its lid automatically when it detects a person…

Introduction A Power Supply Circuit is one of the most important blocks in any electronic system. It converts electrical energy…

Introduction An Electronic Lock is a security system that uses electronic components instead of a traditional mechanical key. Access is…

Introduction An Audio Amplifier is an electronic circuit that increases the strength (amplitude) of an audio signal so that it…

Introduction A Continuity Tester is a simple electronic device used to check whether an electrical path is complete or broken….