Projects
Project Portfolio
Complete project portfolio across AI/ML, computer vision, embedded firmware, industrial automation, medical systems, and enterprise elevator platforms.
AI/ML Computer Vision
D-Vision Pro - AI-Driven Diamond Inspection and Measurement System
Built an end-to-end machine-vision platform for diamond inspection, defect marking, contour analysis, and grading assistance with desktop and Android workflows.
Key Outcomes
- Implemented AI-assisted classification and defect detection pipeline.
- Delivered batch processing, parameter tuning, and report generation features.
- Designed for scalable production use with future cloud model extension.
IoT Home Automation
Renu Retrofit Switchboard - Smart Home Automation System
Developed a retrofit IoT switchboard with complete firmware stack, BLE provisioning, secure OTA, and Android control application.
Key Outcomes
- Enabled multi-room scalability without rewiring existing switchboards.
- Implemented robust state synchronization and command handling.
- Delivered production-ready architecture with cloud-ready extensibility.
Industrial Analog and Hardware Design
Signal Conditioning Module (SCM) for Precision Sensor Integration
Designed a precision signal-conditioning PCB for strain gauges, RTDs, and accelerometers with stable power rails and EMI-aware layout practices.
Key Outcomes
- Improved low-noise differential signal acquisition quality.
- Implemented robust ADC-ready differential amplification path.
- Completed pre-compliance-focused EMI/EMC design approach.
AI/ML Agriculture
AI-Powered Pest Identification and Pesticide Recommendation System
Developed a mobile AI workflow to classify insect growth stages from images and recommend pesticide treatment using optimized edge inference.
Key Outcomes
- Delivered on-device real-time inference for field usability.
- Mapped model predictions to actionable pesticide recommendations.
- Improved agricultural decision support using image intelligence.
AI + IoT Edge Analytics
AI-Driven Smart Agriculture System with IoT Integration
Built a smart agriculture system combining sensor telemetry, weather inputs, and TensorFlow Lite recommendations with AWS-backed data services.
Key Outcomes
- Generated crop-specific irrigation recommendations for wheat and rice.
- Integrated secure cloud ingestion and mobile dashboard visibility.
- Improved water-usage optimization through AI-assisted planning.
Access Control and Mobile Integration
Integrating BIO-LOCK System with ESP32 and Android Application
Implemented Bluetooth-based Android to ESP32 integration for smart access control, configuration management, and real-time device data exchange.
Key Outcomes
- Built custom protocol for reliable mobile-device communication.
- Delivered serial retrieval and user access management workflows.
- Ensured scalable architecture with performance-focused design.
Embedded Communication Protocols
Custom Protocol Communication with STM32F103
Designed a custom protocol stack with dynamic payload handling, parity checks, handshake sequencing, and interrupt-based packet processing.
Key Outcomes
- Implemented robust error detection and retransmission logic.
- Improved noise tolerance with false-interrupt filtering strategy.
- Met strict timing and packet validation requirements.
Industrial Firmware Refactoring
Modbus Communication Reliability Enhancement
Refactored embedded Modbus communication architecture by shifting retry logic from driver to application layer for deterministic control.
Key Outcomes
- Improved maintainability through clean layer separation.
- Enabled application-level retry policy and deterministic behavior.
- Enhanced diagnostics with structured logging and error handling.
Power Electronics and FPGA Validation
Power Management and VRM Calibration System
Built a full calibration and monitoring ecosystem integrating Renesas PMICs, Raspberry Pi CM4, FPGA PCIe bridge, and Python GUI orchestration.
Key Outcomes
- Automated DAC/ADC calibration and telemetry workflows.
- Implemented JSON-driven PMIC register configuration with validation.
- Improved production test repeatability across multi-rail VRM systems.
Sensor Data Acquisition
Integrating TCD1304 Linear CCD with STM32F401
Developed firmware to drive TCD1304 linear CCD and stream raw data over USB with shutter-speed control for different lighting conditions.
Key Outcomes
- Achieved precise timing compliance for CCD drive signals.
- Enabled host-side raw data capture and post-processing.
- Improved capture flexibility with configurable shutter speeds.
Embedded Control and Scheduling
Intervalometer for Canon DSLR EOS1200
Built an Arduino-based intervalometer with RTC scheduling, weekday control, menu-driven UI, and safe trigger isolation for DSLR automation.
Key Outcomes
- Delivered configurable interval and scheduling workflows.
- Implemented user-friendly navigation with physical buttons.
- Ensured safe and reliable trigger interface with camera hardware.
Motor Control Firmware
BMSBattery S06S Kuteng E-Bike BLDC Motor Controller
Reverse-engineered and improved BLDC controller hardware and software for electric bike control, battery monitoring, and safer operation.
Key Outcomes
- Improved motor control stability and user ride experience.
- Removed existing hardware/software defects through re-engineering.
- Validated reliable operation under practical usage conditions.
Medical Instrumentation
Gas Flow Analyzer for Ventilator Calibration
Developed gas flow analyzer system to measure pressure, oxygen, airflow, and temperature for ventilator product calibration and verification.
Key Outcomes
- Enabled precise and reliable ventilator calibration workflows.
- Integrated multi-parameter measurement in a single system.
- Supported safer respiratory equipment validation processes.
Medical Device Control Systems
PranaSetu Compressor/Blower Ventilator and AF60 Ventilator
Implemented multi-mode ventilator control using cascaded PID loops for HFNC, CPAP, BiPAP-t, and BiPAP-st with real-time sensor feedback.
Key Outcomes
- Delivered stable closed-loop airflow and pressure regulation.
- Implemented safety-centric monitoring and control behavior.
- Supported multiple ventilation modes in production hardware.
Industrial Vision Inspection
Label Numbering and Inspection for Pharma Industry
Developed camera-based label-number verification system to detect misprints and quantity mismatches in pharma label production lines.
Key Outcomes
- Automated serial-number inspection for each label on line.
- Reduced risk of incorrect quantity supply due to print errors.
- Integrated Linux UI workflow with microcontroller machine control.
Industrial Printing Control
Xaar128 Printer Head Interfacing with Arduino Mega 2560
Implemented digital control sequencing and SPI data flow for Xaar128 industrial print head with photocell-triggered firing control.
Key Outcomes
- Implemented reliable print-head firing sequence control.
- Integrated photocell-based event triggering for print timing.
- Validated embedded control behavior with hardware-level testing.
Industrial Motion and Automation
Unwind Rewind Machine (URIPI)
Developed control firmware for unwind/rewind operations with tension control, alignment correction, and missing-label counting.
Key Outcomes
- Delivered stable speed/torque control for web handling.
- Implemented missing-label detection and operational controls.
- Enabled reliable alignment using stepper-based correction.
Enterprise IoT Elevator Platform
Elevator Monitoring System (EMS V3)
Led IoT-enabled elevator monitoring platform integrating EGIS services, CAN/RING data capture, protobuf serialization, and cloud telemetry.
Key Outcomes
- Enabled near real-time fleet status and alarm visibility.
- Implemented EGIS, RUST decoder, and communication integrations.
- Managed sprint execution and delivery workflows for large teams.
Enterprise Embedded SDK
Global Control System - Computing Platform SDK (GCS-CP SDK)
Designed and maintained core embedded SDK modules for Otis elevator controllers, including boot flows, services, and test applications.
Key Outcomes
- Delivered reusable SDK services for multiple elevator subsystems.
- Implemented module-level services including pipe and error logging.
- Supported global-scale deployment with robust platform foundations.
Embedded Test Automation
Secondary Loader Test Automation
Automated secondary-loader test workflow using relay-based power control, flash emulation, and software orchestration to reduce manual effort.
Key Outcomes
- Reduced repetitive manual testing steps and execution overhead.
- Improved repeatability of secondary-loader validation process.
- Accelerated regression coverage for release readiness.
Cloud IoT Proof of Concept
POC - Elevator Monitoring System using Cloud Technology
Built proof-of-concept data path from CAN message capture to Raspberry Pi gateway and Azure IoT cloud visualization.
Key Outcomes
- Validated CAN-to-cloud telemetry conversion architecture.
- Enabled command-line monitoring of translated message streams.
- Demonstrated cloud-connected monitoring feasibility for elevators.
Firmware Lifecycle Automation
POC - GECB_V2 Application Upgrade using FTP
Implemented firmware upgrade proof-of-concept where GECB acts as FTP client to fetch and update application binaries.
Key Outcomes
- Reduced dependency on field technician hardware for upgrades.
- Streamlined application update flow at deployment sites.
- Demonstrated scalable remote-update direction for field systems.
Industrial Motor Control
EMS2000 Soft Starter with MMI for 3-Phase AC Motor (10 HP)
Developed control firmware and MMI for soft-starter product with current-limiting behavior, metering modules, and Modbus host integration.
Key Outcomes
- Improved starting behavior and reduced mechanical/electrical stress.
- Added current, voltage, and frequency metering modules.
- Integrated host communication and completed module-level testing.
Medical Device Embedded Control
Controller for Medical Treadmill
Designed controller hardware and firmware for PC-based stress-test treadmill with host protocol integration and feedback control.
Key Outcomes
- Implemented host-controller communication using Trackmaster protocol.
- Developed speed/elevation feedback with optical sensing approach.
- Enabled safe motor-speed control using external drive controller.
Robotics Control Systems
SCARA Robot Control Software and Controller
Developed software and controller interface for 4-axis SCARA robot including forward and inverse kinematics calculations.
Key Outcomes
- Implemented control sequencing for multi-axis stepper drives.
- Added forward and reverse kinematics computation routines.
- Demonstrated functional robotic motion-control workflow.
Technical Research and Presentation
Academic Seminar on Fundamentals of Robotics
Prepared and presented seminar on robotics fundamentals, robot classification, and industrial robot kinematics.
Key Outcomes
- Documented fundamentals of robotics for engineering audiences.
- Covered forward and inverse kinematics principles.
- Strengthened domain grounding in industrial robot control.