# Madhusudan Live > Personal portfolio, engineering showcase, and technical blog of Madhusudan Babar (Krypton) covering Embedded Systems, IoT, Firmware, Hardware Security, and Modern Web Applications. ## Author & Profile - [About Madhusudan Babar](https://madhusudan.live/about/madhusudan): Full-Stack Developer & Embedded Systems Engineer with 5+ years of experience across avionics/defense tech firmware, ESP32/STM32/8051 hardware systems, Nuxt 3, and Vue. - [GitHub](https://github.com/madhusudanbabar): Open-source repositories and hardware projects. - [LinkedIn](https://www.linkedin.com/in/madhusudan-babar): Professional background and engineering career. ## Electronics, IoT & Embedded Systems Guides - [Basics of Electronic Components with Functions & Working](https://madhusudan.live/blog/basic-electronic-components-simple-yet-detailed-guide): Comprehensive guide to active and passive electronic components (resistors, capacitors, diodes, transistors, ICs) with working principles and downloadable PDF. - [What is Arduino Uno, Boards, IDE & Programming with ESP32 / ESP8266](https://madhusudan.live/blog/what-is-arduino-uno-boards-ide-programming-esp32-esp8266): Complete primer on Arduino microcontroller architecture, board variants, development workflow, and Wi-Fi SoC integration. - [DIY Smoke Detector Alarm System using MQ135 & Arduino](https://madhusudan.live/blog/diy-smoke-detector-system-mq135-and-arduino): Step-by-step tutorial on building a gas and smoke sensing system with MQ135 sensor calibration, circuit schematics, and Arduino C code. - [Interfacing 16x2 LCD with 8051 Microcontroller](https://madhusudan.live/blog/interfacing-16x2-lcd-with-8051): Hardware pinout, command registers, and embedded C firmware for driving 16x2 alphanumeric displays on 8051/8052 silicon. - [Interfacing Dot Matrix Display (DMD) with Arduino](https://madhusudan.live/blog/interfacing-dot-matrix-display-with-arduino): Wiring diagrams and multiplexed LED matrix driving using SPI and Arduino libraries. - [Solved: ESP32 Packet Timeout Issue](https://madhusudan.live/blog/solved-esp32-packet-timeout-issue): Root cause analysis and resolution for Wi-Fi/Bluetooth packet timeouts and buffer stalls on ESP32 microcontrollers. - [Top Electronics Project Ideas for ECE Students](https://madhusudan.live/blog/topic-for-project-electronics-projects-ideas-for-ece-students): Curated engineering project topics spanning IoT, robotics, power systems, and signal processing. ## Software Architecture, Web & Security - [Electronic Data Interchange (EDI) Examples & Process Flow](https://madhusudan.live/blog/electronic-data-interchange-examples-process-flow): Enterprise B2B architecture breakdown covering ANSI X12, EDIFACT standards, translation software, and transaction sets (EDI 850, 810, 856). - [Ethical Hacking & Cybersecurity for Absolute Beginners](https://madhusudan.live/blog/ethical-hacking-for-absolute-beginners): Foundational security roadmap covering penetration testing methodology, recon, network analysis, and legal frameworks. - [Handling Multiple Subdomains with Nuxt.js](https://madhusudan.live/blog/handling-multiple-subdomains-with-nuxtjs): Architectural pattern for multi-tenant and multi-subdomain routing in Nuxt 3 / SSR applications. - [Google Maps vs Mappls by MapmyIndia](https://madhusudan.live/blog/google-maps-vs-mappls-by-mapmyindia): In-depth comparison of spatial accuracy, 3D mapping, house-level address precision, and API pricing for Indian geography. - [SecArmy CTF 2.0 Writeup](https://madhusudan.live/blog/secarmy-ctf-2-0): Technical writeup and reverse-engineering walkthrough for capture-the-flag hardware/web challenges. - [Basics of Computer Programming & Languages for Beginners](https://madhusudan.live/blog/basics-of-computer-programming-for-beginners): Mental models and syntax foundations across procedural, object-oriented, and functional programming. ## Sitemaps & Feeds - [XML Sitemap](https://madhusudan.live/sitemap.xml): Complete URL index of all articles, web stories, and tag collections. - [RSS Feed](https://madhusudan.live/rss.xml): Real-time syndication feed for newly published engineering articles.