
A breadboard is a reusable platform used for prototyping electronic circuits without soldering. It has rows and columns of holes connected internally with metal strips. Components and jumper wires can be inserted into the breadboard to create temporary circuits. In this project, a breadboard may be included to connect the ultrasonic sensor or motor driver before final assembly. It allows beginners to experiment and learn circuit design without permanent connections. Although not always essential in the final robot, it is extremely helpful during learning, testing, and debugging of electronic circuits in robotics projects.