Abstract—This paper presents the design, development, andperformance analysis of an autonomous mobile robot capable ofboth line following and obstacle avoidance. The robot integratesinfrared (IR) sensors for line tracking and ultrasonic sensorsfor real-time obstacle detection, enabling efficient navigationin dynamic environments. Hardware components include anArduino Uno microcontroller, motor drivers, and proximitysensors, all orchestrated through optimized control logic. Thesystem is tested in various real-world conditions, demonstratingreliable performance in line tracking and obstacle avoidancetasks, making it suitable for applications in industrial automation,healthcare logistics, and smart transportation systems