Gulshan Kumar

Hardware & Prototyping Projects

Personal Exposure Monitors

Personal Exposure Monitors

Developed to empower communities with actionable environmental data, these compact personal exposure monitors offer a new approach to air quality tracking. The portable devices capture high-resolution metrics (PM2.5 , CO2) and precise GPS coordinates to spatially map daily exposure routes. The systems have been engineered with a strong focus on power optimization, enabling reliable all-day operation on a single charge. This work integrates hardware design, embedded systems development, and data acquisition strategies to create robust, portable tools for real-world exposure assessment. The devices are particularly suited for applications such as personal exposure studies, mobile air quality mapping, and community-level monitoring, providing actionable, high-resolution datasets for research and policy support.

Portable Pollution Monitors Geotagging Embedded Electronics Enclosure Design Data Visualization
Outdoor PM2.5 Monitor

Low-Cost PM2.5 Outdoor Monitor

Developed to address critical data gaps in urban air quality, this low-cost PM2.5 monitor serves as the foundational node for scalable environmental sensor networks. This system served as the core platform for evaluating low-cost sensor performance across diverse meteorological conditions in India. The device has been deployed in outdoor environments for over four years, demonstrating robust performance under extreme weather conditions. Integrated with IoT capabilities, it enables real-time data transmission to a centralized monitoring system, supporting continuous, large-scale air quality assessment and research applications.

Weatherproofing PCB Fabrication IoT Sensor Networks Air Quality Monitoring
DIY Smart Air Purifier

Open-Source Smart Air Purifier

Developed as an open-source, low-cost intervention for indoor particulate matter reduction, this smart air purifier democratizes access to clean air technology. Beyond the hardware design, the system serves as an interactive educational platform. Through hands-on community workshops, the project empowers users to build their own devices, simultaneously teaching fundamental fabrication skills and raising critical awareness about indoor air quality.

Product Design Open-Source Hardware Airflow Dynamics Community Workshops
UAGV Prototype

Unmanned Autonomous Ground Vehicle (U.A.G.V.)

For my M.Tech Thesis, I developed a compact U.A.G.V. equipped with a rocker-bogie mechanism. This mechanical design provided a highly stable platform suitable for tracking and environmental sensing applications across uneven terrain.

Mechatronics Mechanical System Design CNC Machining Robotics