Robotbit V2.0 Micro:bit Expansion Board

4-Channel DC Motor & 8-Channel Servo Control: Equipped with dual HR8833 motor drivers, allowing simultaneous control of up to 4 DC motors (or 2 stepper motors) and 8 standard PWM servos.

Integrated 18650 Battery Power Management: Features an onboard 18650 Li-ion battery holder with an integrated charging circuit and battery protection chip to keep portable robotic projects safely powered.

Onboard Power Boost Circuit: Converts 3.7V battery power into stable 5V output, providing plenty of current for high-torque servos and external sensors.

Color-Coded GVS Pin Headers: All GPIO pins from the BBC micro:bit are broken out into 3-pin GVS (Ground, VCC, Signal) headers for easy, mistake-free connection of sensors and modules.

Onboard Buzzer & RGB LEDs: Includes an onboard passive buzzer for musical tone generation and multi-color RGB LEDs for quick visual status indicators.

Module Construction: Built on a multi-layer FR-4 glass epoxy printed circuit board (78 mm x 57 mm) with an integrated micro:bit edge slot connector and 18650 battery holder.

Power Supply & Operating Voltage: Operates via standard Micro-USB charging or a 3.7V 18650 Li-ion battery. Outputs standard 3.3V and 5V logic levels to connected peripherals.

Handling Precautions: Hold carefully by the outer circuit board edges. Always double-check battery polarity marks prior to inserting the 18650 battery to prevent circuit damage.

Environmental Limits: Operating temperature range spans 0°C to +70°C. Keep protected from electrostatic discharge, metal dust, and liquid moisture.

The Ultimate Micro:bit Robotics Hub: Position as the all-in-one expansion platform for turning a BBC micro:bit into a powerful mobile robot, robotic arm, or smart vehicle.

Eliminates External Driver Boards: Highlight how the integrated motor/servo drivers and onboard battery holder eliminate the need for bulky external power modules or motor boards.

Recommended Cross-Sell Add-ons: Pair with BBC micro:bit V2 Boards, 18650 Rechargeable Li-ion Batteries, TT Gearbox DC Motors, and Micro Servos.

Ideal for STEM Competitions & Maker Projects: Great choice for building line-following robots, obstacle-avoiding rovers, robotic claws, and complex STEM engineering projects.