Wireless Edge Controller for Robot Education Using MQTT on Dobot Magician Lite

Abstract

The integration of wireless controllers in robot education has emerged as a pivotal area to enhance the learning experience and practical understanding of robotics concepts. This paper presents the implementation of a wireless controller for educational purposes using MQTT (Message Queuing Telemetry Transport) on the Dobot Magician Lite robotic platform. MQTT, a lightweight messaging protocol, facilitates efficient communication between the controller and the robot, enabling seamless interaction and control over the robot's movements and functionalities. The implementation focuses on providing a user-friendly interface and intuitive controls, allowing students and educators to easily operate the robot while exploring various educational scenarios. Leveraging MQTT's flexibility, the system offers real-time control and monitoring capabilities, fostering interactive learning experiences in robotics education. The proposed wireless controller demonstrates the feasibility and effectiveness of employing MQTT in robot education, paving the way for enhanced learning opportunities and practical applications in the field of robotics. The examination of MQTT performance across various bandwidths provides important insights into our system's abilities. At 8 Mbps, our system achieved its highest transaction speed, averaging 1.61 transactions per second with a quick average transaction time of 0.62 seconds. Transaction speeds decreased as bandwidth decreased, with 1 Mbps showing the slowest average TPS of 1.24. Importantly, data retention stayed at 100% for all bandwidths, demonstrating consistent reliability.