Welcome to my GitHub! I'm Keerthana N—a passionate developer, creative designer, and humanitarian thinker. I thrive at the intersection of software innovation, electronics engineering, visual design, and community impact. My work bridges the digital, physical, and social spheres to create real-world change.
- Web Developer | Embedded Systems Innovator | AI Explorer | Designer | Humanitarian Technologist
- IEEE Kerala Section SIGHT STEM Coordinator and active NGO collaborator
- Humanitarian Thinker: Dedicated to leveraging technology for social good, with a focus on sustainable development and real-life impact.
- I enjoy transforming ideas into working prototypes—whether it's a smart wearable, an intelligent web app, striking visuals, or impactful community projects.
- Passionate about UI/UX and visual storytelling; experienced with Photoshop, Illustrator, and Figma.
- Committed to continuous learning, collaboration, and knowledge sharing within the community.
| Category | Skills & Tools |
|---|---|
| Hardware & Embedded | Hardware Prototyping, Circuit Design, ESP32, 8051, Embedded C, Verilog, LTspice |
| Software Development | JavaScript, Python, HTML & CSS, React, Bootstrap, Streamlit, LangChain, Gemini AI, FAISS, Flutter (basics) |
| Design & UX | UI/UX Design, Visual Storytelling, Photoshop, Illustrator, Figma |
| Platforms & Tools | Git, Humanitarian project management |
A low-cost wearable system combining embedded sensing, haptic feedback, and a gamified Flutter app for post-stroke hand therapy.
Key Contributions & Technical Highlights
Hardware:
- Designed sensor-actuator platform using ESP32-WROOM-32 (Xtensa LX6 dual-core MCU) in Wi-Fi SoftAP mode.
- Interfaced flex resistive sensors via ESP32’s 12-bit ADC for precise finger bend detection.
- Developed NPN transistor + flyback diode motor drivers for PWM-controlled ERM vibration motors.
- Powered system with LM2596 buck converter stepping 9V battery to stable 3.3V logic voltage.
Embedded Firmware:
- Implemented non-blocking ADC sampling and PWM motor control for real-time actuation.
- Built a low-latency (<50ms) full-duplex WebSocket server enabling bidirectional sensor-actuator communication.
Flutter App:
- Created a cross-platform WebSocket client connecting to ESP32 SoftAP for live data and control.
- Developed a gamified UI with finger-specific visual/haptic cues to drive therapy exercises.
- Used Hive DB for offline session data logging and recovery analytics visualization.
Impact & Skills
- Delivered an affordable (₹ < 1000), portable neurorehabilitation tool optimized for home use.
- Gained expertise in embedded systems, real-time wireless protocols, analog sensing, power electronics, and mobile app development.
- Led end-to-end hardware-software integration with a clinical focus on user engagement and data-driven therapy.
An RF detection circuit leveraging LM358 op-amp and BC548 transistor to sense active mobile phones by their electromagnetic signatures.
- Role: Circuit design, prototyping, and calibration.
- Impact: Enhanced RF signal detection and analog troubleshooting skills.
8051-based digital thermometer displaying real-time temperature via LM35 sensor on LCD.
- Role: Full hardware lifecycle: simulation, assembly, interfacing.
- Impact: Practical microcontroller integration and sensor data processing.
A visual thermometer using LM35 sensor and LM3915 IC for a 10-LED temperature display.
- Role: Schematic design, hardware assembly, calibration.
- Impact: Mastered analog-to-visual data conversion and hands-on electronics.
AI-driven legal document analysis tool powered by LangChain, Gemini, FAISS, and Streamlit, offering instant red flag detection and context-based Q&A.
- Role: Developed responsive web interface (Bootstrap, HTML, CSS, JS), integrated advanced AI models.
- Impact: Bridged AI and legal tech, developed document-centric AI workflows.
A clean, React-powered to-do list for streamlined daily productivity.
- Role: UI/UX design and feature implementation.
- Impact: Sharpened React and JavaScript proficiency.
A minimalist web app for generating random numbers (0-100) on the fly.
- Role: Built, deployed, and maintained the app.
- Impact: Grasped randomization logic and web deployment essentials.
IEEE SIGHT Kerala HTB Funded Project
A sustainable solution addressing clean water scarcity and energy deficiency in the tribal settlement of Kuthiryilakudi, Munnar, Kerala.
- Role: Project implementation team – deployed a solar-powered water distribution system and basic lighting for 18 families lacking infrastructure.
- Impact: Improved quality of life by ensuring access to safe water and reliable energy.
IEEE SB NSSCE & IEEE Kerala Section SIGHT, funded by IEEE HTB
Implemented in Chavadippara, Walayar, Palakkad, this project tackled severe water scarcity in a tribal village:
- Role: Team member in planning, execution, and community engagement.
- System: Solar-powered pump draws water from natural sources, storing it in a 2000L tank and distributing via pipelines to 18 households; solar streetlights also installed for safety.
- Impact: Completed in 3 days; improved access to clean water and safety, demonstrating #Tech4Good through collaboration and innovation.
- Innovation-Driven: I don't just follow trends—I create them through hands-on experimentation and humanitarian vision.
- Full-Stack Perspective: From microchips to machine learning, from visual design to social impact, I bring a holistic, purpose-driven approach.
- Collaborative Mindset: Always eager to contribute, learn, and grow—side by side with communities and fellow innovators.
- GitHub: loco-2003
- Email: kn58967@gmail.com
- LinkedIn: keerthana-n-896694252
Thanks for stopping by! 🚀
Let's build, design, and make a difference together.