Analogue Doorbell

The Analogue Doorbell project was a hands-on electronics build focused on designing a simple yet functional doorbell circuit using fundamental analogue components. The project showcased the use of transistors, resistors, capacitors, and a piezo buzzer to generate a sound signal upon pressing a push button.

Project Highlights:

Designed a transistor-based switching circuit to activate the buzzer

Integrated a debouncing mechanism using capacitors for stable input response

Used breadboard prototyping before soldering onto a PCB for a compact final build

Powered via DC power supply (e.g. 5V–9V), ensuring low power consumption

Explored sound frequency control using resistor-capacitor (RC) timing

This project deepened my understanding of circuit theory, signal flow, and electronic control, and enhanced my skills in schematic reading, component selection, and troubleshooting. It also reinforced the importance of reliability and user safety in consumer-facing electronic designs.