The Ring:bit car has three specialized modules designed to enhance its functionality: the line following module, the light-bar module, and the Sonar:bit. Line Following Module: This module is equipped with two infrared sensors that can precisely detect distances between 2 to 12 mm. It allows the car to follow lines, navigate around circles, and detect edges on surfaces. Light-Bar Module: This simple-to-assemble module includes 8 multicolor LED lights, offering a spectrum of rainbow colors. You can upgrade your car with automatic headlights and vibrant rainbow lighting. Sonar:bit Module:Mounted at the rear of the car, this ultrasonic module helps avoid obstacles by providing stable and accurate distance measurements from 4 cm to 400 cm, with a minimal tolerance of ±1 cm. It operates on a voltage of 3-5V and connects via a single 3-wire (GVS) cable, saving an IO port compared to standard 4-wire ultrasonic modules. It's compatible with both 3.3V and 5V micro-controller systems.