Hello, I'm Rajnarayan Hazra

IOT and Embedded System Enthusiast

Get to know me

About Me

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I'm an enthusiastic embedded systems developer with a strong foundation in C programming, Linux environments, and hands-on experience with platforms like Arduino and Raspberry Pi. I love building smart, responsive systems that bridge the gap between hardware and software.

Whether it's prototyping with microcontrollers, automating tasks using Raspberry Pi, or diving deep into low-level code and device drivers, I enjoy solving real-world problems with efficient and practical embedded solutions.

Outside of coding, I’m always exploring new tech in the embedded space, experimenting with sensors, or fine-tuning projects on the Linux command line. I believe in writing reliable, maintainable code and creating systems that are both powerful and elegant. Let's bring innovation to life—one circuit at a time!

Skills & Technologies

Embedded System Development

Arduino ESP8266 Raspberry Pi STM32 Shrike Lite

Programming

C/C++ Python HTML CSS Linux Terminal

Tools & Others

Git Kikad Figma VS Code Postman TinkerCAD

Featured Projects

Offline UPI APP

This project demonstrates an offline ATM-like payment system designed to simulate real-world digital banking transactions without internet dependency. It mimics the core functionalities of an ATM or UPI system, using Arduino interfaced with the SIM800L GSM module for communication and a C-based dummy bank server for processing transactions.

C Arduino Github

Object Hue Detection

A full-featured detection software that identifies and isolates objects in real-time based on predefined hue values from live camera input.

Python CV2 Rasberry Pi GitHub

Wireless Serial Device

Designed and developed a Wireless Serial Bridge using ESP32 and ESP-NOW to enable wireless file transfer and serial debugging for embedded systems like STM32, Arduino, and Raspberry Pi without requiring Wi-Fi or a direct USB connection. Implemented packet-based file transfer, auto port detection, and real-time transfer progress using Python.

Do check LinkedIn for Project Demos

C Arduino Python GitHub LinkedIn

Home Automation App

This project focuses on building a home automation system that enables users to control electrical appliances over a Wi-Fi network using a NodeMCU (ESP8266) microcontroller. The system is designed for real-time switching of devices through a user-friendly HTML web page interface, making smart home control accessible and efficient.

C Arduino HTML GitHub

Smart Parking Sytem

This project is a Smart Parking System designed to automate vehicle entry and exit in a parking area. It uses Arduino to control the flow of vehicles with the help of IR sensors, a servo motor for gate control, and an LCD display to show real-time parking status. The system aims to reduce manual intervention and improve parking efficiency..

C Arduino GitHub
Smart Lamp Project

Smart Lamp

This project is a home automation system using a NodeMCU (ESP8266) to control a smart lamp over Wi-Fi. The NodeMCU hosts a webpage interface, accessible through its IP address on a browser, allowing users to turn the lamp on/off or adjust its brightness remotely. It demonstrates IoT-based wireless device control in a simple and user-friendly way.

C HTML CSS JS GitHub

Get In Touch

I'm always open to discussing new opportunities and interesting projects.

GitHub LinkedIn Email