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ALWINTR/README.md

Alwin T R

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👨‍💻 Executive Summary

Robotics & Automation graduate dedicated to architecting intelligent autonomous mobile robots, real-time embedded firmware (FreeRTOS / Bare-Metal C++), multi-sensor industrial sorting automation, and resilient cloud IoT telemetry. Experienced in developing end-to-end hardware-software systems spanning microcontroller architectures (ESP32, STM32, PIC16F877A, AVR), kinematic gait coordination, hardware bus protocols (UART, SPI, I2C, CAN), and ROS2 dynamic simulation.

🚀 Core Engineering Specializations

┌──────────────────────────────────┐      ┌──────────────────────────────────┐
│   Autonomous Robotics & Gait     │      │   Real-Time Embedded Firmware    │
│   • 4-DOF Bipedal Gait Timing    │      │   • ESP32 Dual-Core FreeRTOS     │
│   • Differential Drive Rovers    │      │   • 16-Bit Hardware PWM Timers   │
│   • ROS2 Navigation2 & Gazebo    │      │   • Bare-Metal PIC16F877A & AVR  │
└──────────────────────────────────┘      └──────────────────────────────────┘
┌──────────────────────────────────┐      ┌──────────────────────────────────┐
│   Industrial Sensor Automation   │      │   IoT & Cloud Telemetry Systems  │
│   • NEMA 17 Stepper Indexing     │      │   • Blynk 2.0 Cloud Actuation    │
│   • Inductive Metal Classification│     │   • Embedded Async HTTP Servers  │
│   • Proteus VSM Circuit Design   │      │   • UART Serial Telemetry Stream │
└──────────────────────────────────┘      └──────────────────────────────────┘

🛠️ Technical Competency Matrix

Domain Technologies, Frameworks & Toolchains
Microcontrollers & Processors ESP32 (Xtensa Dual-Core), PIC16F877A, STM32 (ARM Cortex-M), Arduino Mega 2560, AVR ATmega328P, ESP8266, Raspberry Pi 4
Languages & Microkernels C (C99/C11), C++17, Embedded C, FreeRTOS Multi-Tasking, PIC Assembly, Python 3.x, Bash / Shell
Robotics & Simulation ROS2 (Humble), Gazebo Dynamic Simulator, Forward & Inverse Kinematics, Differential Drive Odometry, OpenCV
Protocols & Hardware Busses UART / USART, SPI Bus, I2C Bus, CAN Bus, 16-Bit Hardware PWM, ADC / DAC, Hardware Interrupts
IoT & Wireless Ecosystem Wi-Fi (802.11 b/g/n), Blynk 2.0 Cloud Platform, ESPAsyncWebServer, ESP-NOW, HTTP / REST, MQTT, BLE
EDA, Toolchains & IDEs Proteus VSM Suite, PlatformIO, ESP-IDF, MPLAB X / XC8, VS Code, Git / GitHub, Linux (Ubuntu 22.04 LTS)

📁 Featured Hardware & Robotics Repositories

Repository Domain Hardware & Stack Description
spybot-metal-and-gas-detection Robotics ESP32, Arduino, L298N, MQ-2, Inductive Tele-operated reconnaissance rover with real-time video, hazardous gas detection, and metal sensing.
waste-segregation-system Automation Arduino Uno, NEMA 17, A4988, Inductive, Servo Automated multi-material classification station with stepper carousel indexing and servo diverter.
esp32-bipedal-robot Kinematics ESP32, FreeRTOS, MG996R Servos, 16-Bit PWM 4-DOF bipedal robot with synchronized hip-ankle inverse kinematics and real-time serial telemetry.
rfid-access-control-pic16f877a Embedded Security PIC16F877A, RC522 SPI RFID, 16x2 LCD, Proteus Embedded access control with 13.56MHz RFID verification, LCD feedback, and servo lock actuation.
earthquake-monitoring-system Sensors Arduino Nano, ADXL335, I2C OLED, Piezo Siren Seismic ground vibration detector with dynamic vector calibration, noise filtering, and alarm.
rain-sensor-servo Weather Automation Arduino Uno, FC-37 Rain Sensor, LM393, Servo Weather protection shutter with software hysteresis anti-oscillation and microsecond servo timing.
esp-webserver-servo Web IoT ESP8266, ESPAsyncWebServer, REST, AJAX Asynchronous HTTP server hosted on ESP with interactive browser slider for real-time servo control.
blynk-servo-controller Cloud IoT ESP32 / ESP8266, Blynk 2.0, Virtual Pin V0 Enterprise IoT actuator framework with cloud datastream sync and auto-reconnection state machine.
ALWINTR.github.io Portfolio HTML5, CSS3, JavaScript, Canvas 2D Official personal engineering portfolio showcasing live repositories and technical competencies.

🌐 Connect & Professional Network

© 2026 Alwin T R. Engineered with precision for robotics and embedded systems.

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