Smart Electronic Candle Project – Engineered a fully automated, light-responsive electronic candle using analog components, including IC 741 op-amp, LDR, and BC548 transistor. Integrated a precision light detection system to enable real-time switching based on ambient lighting conditions, eliminating the need for manual control, and focused on circuit optimization for energy efficiency, safety, and scalability. Demonstrated practical application of sensor integration, signal amplification, and analog interfacing, ideal for smart home, IoT, and low-power automation environments
Audio amplifier project – developed a compact, low-power audio amplifier using the IC 741 op-amp and BC547 transistors to amplify weak microphone signals with minimal distortion, implemented dual-stage amplification, voltage and current gain to drive small speakers while maintaining signal clarity, gained hands-on experience with analog design concepts, including biasing, filtering, and signal coupling, along with tuning frequency response and gain, this project reinforced core principles in analog circuit design and audio signal processing, applicable to embedded audio systems and consumer electronics
Gas leakage detector project – designed a safety system using a gas sensor module and 555 timer IC to detect hazardous gas concentrations and trigger an immediate audio alert Incorporated voltage regulation, sensitivity tuning via variable resistors, and circuit stabilization using passive components for reliable operation The project focused on real-time hazard detection, circuit responsiveness, and environmental adaptability, offering practical applications in home, industrial, and lab safety systems Demonstrated core concepts in sensor interfacing, threshold-based switching, and digital system integration.