The Robotbit V2.0 / Super:bit expansion board is a powerful all‑in‑one robotics base for BBC micro:bit, designed for elementary and middle school STEM classes and Python programming projects. With an onboard 18650 lithium battery holder, charging and power‑management circuit, it makes mobile robot designs simple and safe.

Key features

• Compatible with BBC micro:bit V1/V2, plug‑in edge connector, no wiring required.
• Onboard power management: 18650 Li‑ion holder, power protection, charging protection and 3.3 V / 5 V regulated outputs for micro:bit and sensors.
• 1x buzzer (with hardware switch) for sound effects and alerts in classroom projects.
• 4x addressable RGB LEDs for light shows, indicators and status feedback, controlled via single‑wire bus.
• 4x DC motor outputs (can be reconfigured as 2x 5‑wire stepper motor ports) to drive robot cars and mechanisms.
• 6x servo ports for robot arms, grippers and pan‑tilt platforms.
• 1x IIC/I2C interface (2.54 mm) and 3 sensor interfaces (one 4‑pin, two 3‑pin) for easy connection of common modules.
• 4x micro:bit GPIO power breakout headers (2.54 mm) for breadboard or prototype wiring.
• 1x battery voltage output header for powering external circuits directly from the 18650 cell.

Product specifications

• Product name: Super:bit / Robotbit V2.0 Micro:bit expansion board module.
• Power supply options: 1x 18650 3.7 V Li‑ion battery or 5 V Micro USB input.
• Charging: onboard Micro USB 5 V charging circuit for the 18650 cell, with protection.
• Output voltages: regulated 3.3 V and 5 V rails for micro:bit, sensors and servos.
• Operating temperature: 0 ℃ to 85 ℃ (typical educational environment range).

Classroom applications
This board is ideal for micro:bit robot cars, line‑following or obstacle‑avoidance projects, interactive light and sound installations, and Python or MakeCode‑based STEM lessons. The rich motor and sensor interfaces reduce wiring complexity, so students can focus on coding and problem‑solving.