Ring:bit Car Accessories (Sonar:bit，Tracking Module and LED Light bar)

An accessory pack for the ElecFreaks Ring:bit Car V2, adding obstacle avoidance, line-following, and colourful LED lighting to your micro:bit-powered car. The kit includes three modules that plug directly into the Ring:bit Car for expanded functionality.

What's Included

• Sonar:bit (Ultrasonic Sensor) – 3-wire ultrasonic module with a 4–400 cm detection range (±1 cm tolerance), 3–5V operating voltage. Enables obstacle avoidance.
• Tracking Module – Dual infrared probe line-following sensor with 2–12 mm detection distance. Follows black lines, detects edges, and tracks circular paths.
• LED Light Bar – 8× Rainbow full-colour LEDs for auto-headlights, rainbow effects, and custom lighting.

Key Features

• Plug-and-Play – Connects directly to the Ring:bit Car V2 via 3-wire GVS cables
• micro:bit Programmable – Control all modules through MakeCode or Python
• Three Functions in One Kit – Obstacle avoidance, line following, and LED lighting

Ideal For

• Expanding Ring:bit Car V2 capabilities
• Learning about sensors and robotics with micro:bit
• Classroom STEM activities

Package Contents

• 1× Sonar:bit Ultrasonic Module
• 1× Dual IR Tracking Module
• 1× Rainbow LED Light Bar

Resources

• Ring:bit Car V2 Wiki