Skip to content
View ALWINTR's full-sized avatar
3 followers · 6 following

Block or report ALWINTR

Block user

Prevent this user from interacting with your repositories and sending you notifications. Learn more about blocking users.

You must be logged in to block users.

Content in all repositories owned by your account will be closed.
Maximum 250 characters. Please don’t include any personal information such as legal names or email addresses. Markdown is supported. This note will only be visible to you.
Report abuse

Contact GitHub support about this user’s behavior. Learn more about reporting abuse.

Report abuse
ALWINTR/README.md

Alwin T R

Header Banner

Portfolio LinkedIn GitHub Email

Executive Summary

Robotics and Automation Engineer specializing in the design and development of autonomous robotic systems, real-time embedded firmware, multi-sensor industrial automation, and distributed IoT telemetry architectures. Experienced across the entire hardware-software lifecycle, including microcontroller firmware development (ESP32, STM32, PIC16F877A, AVR), multi-joint kinematic trajectory generation, hardware communication protocols (UART, SPI, I2C, CAN Bus), and ROS2 dynamic physics simulation.

Core Engineering Competencies

+------------------------------------+      +------------------------------------+
|    Autonomous Robotics and Gait    |      |    Real Time Embedded Firmware     |
|    - 4 DOF Bipedal Kinematics      |      |    - Dual Core FreeRTOS Kernel     |
|    - Differential Drive Rovers     |      |    - 16-Bit Hardware PWM Timers    |
|    - ROS2 Navigation2 and Gazebo   |      |    - Bare-Metal PIC and AVR C      |
+------------------------------------+      +------------------------------------+
+------------------------------------+      +------------------------------------+
|    Industrial Sensor Automation    |      |    IoT and Telemetry Networks      |
|    - NEMA 17 Stepper Indexing      |      |    - Blynk Cloud Actuator Suites   |
|    - Inductive Metal Detection     |      |    - Asynchronous HTTP Web Servers |
|    - Proteus VSM Circuit Analysis  |      |    - Real-Time Serial Stream HUD   |
+------------------------------------+      +------------------------------------+

Technical Competency Matrix

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

Featured Engineering Projects

Project Title Primary Domain Hardware and Controller Stack Description
Autonomous Reconnaissance Rover with Gas and Metal Detection Autonomous Robotics ESP32, Arduino Uno, L298N, MQ-2 Gas Sensor, Inductive Sensor Tele-operated reconnaissance vehicle with real-time video, hazardous gas detection, and inductive metal proximity sensing.
Automated Multi Material Waste Classification System Industrial Automation Arduino Uno, NEMA 17 Stepper, A4988 Driver, Inductive Sensor, Servo Closed-loop classification station using precision carousel indexing, inductive metal detection, and high-speed servo diversion.
ESP32 4 DOF Bipedal Walking Robot with FreeRTOS Kinematics Robotics Kinematics ESP32 Dual Core, FreeRTOS, MG996R Servos, 16-Bit PWM Timers 4-DOF bipedal walking mechanism with synchronized hip and ankle inverse kinematics, center-of-mass balancing, and serial telemetry.
RFID Secure Access Control and Authentication System (PIC16F877A) Embedded Security Microchip PIC16F877A, RC522 SPI RFID Reader, 16x2 Parallel LCD Hardware access control system with 13.56MHz SPI RFID authentication, EEPROM whitelist verification, and electronic door strike driver.
Real Time Seismic Vibration and Earthquake Early Warning System Sensor Instrumentation Arduino Nano, ADXL335 3-Axis Accelerometer, I2C OLED, Siren Early warning seismic monitoring system computing real-time 3D vector acceleration deltas with dynamic baseline calibration.
Automated Rain Responsive Shutter and Protection Mechanism Weather Automation Arduino Uno, FC-37 Rain Sensor Plate, LM393 Comparator, Servo Weather protection shutter utilizing software hysteresis debounce logic to prevent mechanical jitter and deploy protective covers.
ESP Asynchronous Web Server Real Time Servo Controller Embedded Web IoT ESP8266, ESPAsyncWebServer, RESTful API, AJAX Web Slider Lightweight asynchronous HTTP web server hosted on microcontroller with responsive browser slider for zero-downtime PWM actuation.
Blynk Cloud Connected Real Time Servo Actuation Framework Cloud IoT Actuation ESP32, ESP8266, Blynk 2.0 Cloud Platform, Virtual Pin V0 Cloud IoT actuator framework with bidirectional Virtual Pin telemetry, auto-reconnection state machine, and brownout protection.
Smart Bidirectional People Counter and Room Occupancy Monitor Room Telemetry ESP32, Dual Ultrasonic Sensors (HC-SR04), SSD1306 OLED Non-intrusive directional room occupancy tracker with entry and exit discrimination, live headcount, and acoustic capacity alerts.
Automated Wet and Dry Waste Classification System Smart Sorting Arduino Uno, Soil Moisture Probe, HC-SR04 Sonar, SG90 Servo Automated sorting station utilizing moisture conductivity sensing to route organic wet and dry waste into separate bins.
24GHz mmWave Human Presence and Micro Motion Radar Monitor Radar Sensing ESP32, Hi-Link HLK-LD2410C 24GHz FMCW Radar, UART Bus High-sensitivity radar system tracking micro-movements (breathing, stationary occupancy) across 8 range gates up to 6 meters.
Precision Stepper Motor Angle Controller with Microstepping Motion Control Arduino Uno, NEMA 17 Stepper, A4988 1/16 Microstepping Driver Motion control firmware implementing degree-to-step resolution mapping, linear frequency acceleration ramps, and serial angle commands.
Pipeline Water Flow Rate and Structural Tilt Monitor Infrastructure Telemetry ESP32, YF-S201 Hall-Effect Flow Sensor, SW-520D Tilt Sensor Dual-parameter telemetry station tracking volumetric water flow rate and structural pipe angular deviation via hardware interrupts.
Biometric Pulse Oximeter and Heart Rate Telemetry System Biomedical Instrumentation ESP32, MAX30102 Biosensor, Red and IR Photoplethysmography Optical pulse oximeter computing Heart Rate (BPM) and blood oxygen saturation (SpO2) with live PPG waveform rendering on OLED.
Dynamic Angular Velocity Servo Controller with Smooth Easing Motion Planning Arduino Uno, TowerPro SG90 Servo, Non-Blocking Timer PWM Non-blocking servo angle interpolation firmware providing adjustable angular velocity control and smooth S-curve easing.
ESP32 Embedded Systems and Firmware Architecture Laboratory Firmware Architecture ESP32 Dual Core, FreeRTOS, Peripheral Drivers (SPI, I2C, UART) Prototyping repository containing reusable low-level peripheral drivers, FreeRTOS task templates, and communication modules.
Developer Repository and Conversation Synchronization Suite Developer Automation Python 3, GitHub CLI (gh), Automated JSONL Chat Parser Automated developer conversation sync engine maintaining version-controlled AI pair-programming repositories and archives.
Executive Engineering Portfolio Website Full-Stack Showcase Vanilla HTML5, CSS3, JavaScript, Canvas 2D, GitHub Pages Official personal portfolio featuring cosmic starlight canvas physics, 3D card tilt, dynamic typewriter, and repository filters.

Contact and Professional Network

Copyright (c) 2026 Alwin T R. Engineered with precision for robotics and embedded systems.

Popular repositories Loading

  1. Real-Time-Seismic-Vibration-and-Earthquake-Early-Warning-System Real-Time-Seismic-Vibration-and-Earthquake-Early-Warning-System Public

    Real-time seismic vibration monitoring and earthquake early warning system with OLED display and alarm

    C++ 1

  2. 24GHz-mmWave-Human-Presence-and-Micro-Motion-Radar-Monitor 24GHz-mmWave-Human-Presence-and-Micro-Motion-Radar-Monitor Public

    24GHz mmWave human presence and micro-motion tracking radar system using ESP32 and HLK-LD2410C sensor

    1

  3. Autonomous-Reconnaissance-Rover-with-Gas-and-Metal-Detection Autonomous-Reconnaissance-Rover-with-Gas-and-Metal-Detection Public

    Autonomous reconnaissance rover with real-time video, gas leak detection, and metal sensing

    C++

  4. ALWINTR ALWINTR Public

    Official GitHub Profile for Alwin T R | Robotics and Automation Engineer

  5. RFID-Secure-Access-Control-and-Authentication-System-PIC16F877A RFID-Secure-Access-Control-and-Authentication-System-PIC16F877A Public

    RFID access control system powered by PIC16F877A with LCD display, relay lock, and Proteus simulation

  6. Blynk-Cloud-Connected-Real-Time-Servo-Actuation-Framework Blynk-Cloud-Connected-Real-Time-Servo-Actuation-Framework Public

    Blynk 2.0 Cloud IoT servo actuator framework with bidirectional Virtual Pin telemetry and auto-reconnect

    C++