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Abstract-This paper presents the design and development of an IoT-enabled robotic arm system built using ESP32 microcontrollers, environmental sensors, and a mobile differential-drive platform. The robot integrates a 4-degree-of-freedom (4-DOF) servo-driven manipulator, an ESP32-CAM module for real-time video streaming, and DHT11 and MQ-2 sensors for temperature, humidity, and gas detection. A dual-ESP32 architecture separates motion control from sensor monitoring to ensure stable operation under varying Ioads. The robot is controlled through a custom MIT App Inventor Android application over Wi-Fi, while environmental parameters are transmitted to the Blynk cloud dashboard. Experimental tests shows smooth robotic arm actuation,stable wireless video at 15-20 fps,accurate sensor performance and uninterrupted mobility.This system offers a cost-effective solutions for laboratory survellience,hazardous environmental instructions and IoT based automation.
"IoT Based Robotic Arm using ESP32", International Journal for Research Trends and Innovation (www.ijrti.org), ISSN:2455-2631, Vol.10, Issue 12, page no.a224-a226, December-2025, Available :http://www.ijrti.org/papers/IJRTI2512029.pdf
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2456-3315 | IMPACT FACTOR: 8.14 Calculated By Google Scholar| ESTD YEAR: 2016
An International Scholarly Open Access Journal, Peer-Reviewed, Refereed Journal Impact Factor 8.14 Calculate by Google Scholar and Semantic Scholar | AI-Powered Research Tool, Multidisciplinary, Monthly, Multilanguage Journal Indexing in All Major Database & Metadata, Citation Generator