Enviro Guard: A Bluetooth-Controlled Sensing Robot for Environmental Monitoring and Human-Robot Interaction
R. Brindha, A. Bharath, V. K. S. M. Sanjeevi, V John Sukumar, Akash Kasagani, U. Ganesh Naidu · 2025
In this paper, we propose an innovative robotic system designed to monitor the real time environmental conditions and detect humans that's based on Bluetooth. Passive Infrared (PIR) sensors for presence, ultrasonic sensors for obstacle, DHT11 sensors for temperature and humidity are integrated in a unified, low cost and autonomous EnviroGuard platform. The robot is controlled through a mobile application or it works independently and efficiently navigates its surroundings, gathers environmental data and engages in real time with users. The EnviroGuard differs from existing robotic systems that usually specialize in just one of the three functionalities-automation, navigation, or sensing-which you can find all at once, all together, and all in a very compact form. With its modular architecture and utilizing other components such as Arduino and HC-05 Bluetooth modules, it is suitable for educational, research, and prototyping. It has meanwhile undergone thorough testing that validates it can passively acount for differential motion, avoid obstacles, and ‘hand off’ sensor data. Future improvements like adding IoT and AI based decision making capabilities will enhance its functionality and make EnviroGuard a good starting point for intelligent and interactive robotic systems for home automation, security, environmental research and industry.