Our modular robot advances autonomous robotics by integrating LiDAR, mmWave radar, and a vision-based robotic arm into a versatile platform. The custom mapping software fuses multi-sensor data for precise navigation in dynamic environments like warehouses, outperforming standard SLAM. Key innovations include adaptive sensor, a plug-and-play modular design, and real-time object recognition. Applications range from inventory management to assistive healthcare. Future work focuses on swarm coordination and edge AI enhancements. This project demonstrates how modularity and custom algorithms create adaptable, efficient automation solutions.