Audio Amplifier with Integrated 7-Band Audio Visualizer

• Designed and fabricated a custom PCB audio amplifier with a real-time 7-band audio visualizer, integrating an Arduino Nano and MSGEQ7 frequency analyzer chip

• Programmed real-time audio spectrum analysis and visualization on an OLED display, using C++ programming and I2C communication protocol, showcasing proficiency in embedded systems and digital signal processing

• Engineered a stereo audio system with LM386N-4 amplifiers, and NE5532P buffer, incorporating user-controlled volume, gain, and bass boost functionality

• Achieved high-quality audio output with minimal noise and distortion through careful component selection, and strategic PCB layout

Arduino Security System

• Designed and prototyped a multifunctional security system using an Arduino microcontroller, incorporating RFID technology, Membrane Switch, Joystick, ultrasonic sensors, RGB LED, and buzzers for real-time intrusion detection and access control

• Programmed a user-friendly menu interface on an OLED display using C++, enabling seamless user interaction and configuration of system settings

• Demonstrated electronics integration expertise by interfacing hardware components, resulting in effective alarm signaling, user feedback, and successful integration of RGB LED and sensors

Light-Sensing Clock

• Designed and constructed a distinctive clock with servo motors and a light-sensing photocell for automatic image switching, capturing day-to-night transitions based on ambient light levels

• Seamlessly integrated servo motors, Arduino programming, and light sensing to create a functional clock that dynamically portrays the shift from daytime to nighttime through automated arrow positioning

IR Remote Fan Control and RGB LED Lighting System

• Demonstrated electronics expertise by seamlessly integrating IR receivers, RGB LEDs, and Arduino Nano in a user-friendly smart home system, enhancing convenience and automation

• Engineered custom Arduino firmware to decode IR signals, enabling intuitive control of household appliances and dynamic RGB LED lighting for an enhanced user experience