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Cytron MOTION:BIT Robotics Expansion Board for micro:bit

The MOTION:BIT is a powerful and compact robotics expansion board designed specifically for the BBC micro:bit. Whether you are building an autonomous obstacle-avoiding car or a complex robotic arm, MOTION:BIT simplifies the process by providing all the high-current drive and connectivity you need in one board.

It features a built-in 4-channel DC motor driver and 8-channel servo control, allowing you to create mechanical movements right out of the box. To make your projects portable, it includes an onboard 18650 Li-Ion battery holder with a built-in USB charging circuit. The board also features color-coded GPIO breakouts (GVS format) and status LEDs for every IO pin, making troubleshooting and sensor integration easier than ever.

 

MOTION:BIT motion control board for micro:bit

Omni robot car with mecanum wheels and motor

Quadruped robot with Micro:bit and servo motors

Key Highlights:

  • Plug & Play for micro:bit: Compatible with both micro:bit V1 and V2.
  • Versatile Power: Power your robot via the onboard 18650 battery (rechargeable via Micro-USB) or an external power input terminal.
  • Hassle-Free Wiring: Color-coded headers prevent incorrect polarity for servos and sensors.
  • Coding Support: Fully supported by the Microsoft MakeCode Editor with a dedicated “MotionBit” extension.

Cytron Motion:Bit board layout, component labels.

  • 11x GPIO Status LEDs
  • 11x GPIOs Breakout
  • 3x Maker Ports – general (JST-SH 4-Ways Connector)
  • 1x Maker Port – I2C
  • 1x I2C Breakout
  • 1x micro:bit Socket (vertical)
  • 4x Motor Terminals
  • 8x Motor Test Buttons
  • 8x Motor Status LEDs
  • 8x Servos Port
  • 2x RGB LEDs
  • 1x Ext. RGB LED
  • 6x 5V Supply
  • 1x 18650 Li-Ion Battery Holder
  • 1x On/Off Switch
  • 1x Ext. On/Off Switch
  • 1x Micro USB
  • 1x Power Input
  • 1x Power/Charge LED

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Cytron Motion Bit circuit board

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