4-DOF Metal Robot Arm Kit for micro:bit, Bluetooth

Power Plug



4-DOF Metal Robot Arm Kit for micro:bit, Bluetooth Remote Control


Equip your micro:bit with this 4-DOF metal robot arm, and get started to explore the world of artificial intelligent robotic.

This starter robotic arm kit includes: servo driver board, metal mechanical arm structure, and 4x metal gear servos. When used with the micro:bit, it is easy to control the arm by smart phone through Bluetooth connection.

The Servo Driver

Adopts Servo Driver for micro:bit:

  • micro:bit edge connector, directly pluggable
  • I2C controlled, using only 2 pins
  • Up to 16-Channel servo/PWM outputs, 12-bit resolution for each channel (4096 scales)
  • Integrates 5V regulator, up to 3A output current, can be powered from battery through VIN terminal
  • Standard servo interface, supports common used servos
  • Reserved I2C control pins, allows to work with other control boards
  • Comes with development resources and manual (micro:bit graphical examples like Bluetooth/2.4G wir eless remote control)

The Robot Arm Structure

  • 4-DOF, large solid base, metal mechanical grasper
  • Full aluminium alloy body, sandblasting oxidation surface, strong & durable
  • Clever mechanical structure and mounting design, agile to control, easy to build
  • Fitted with 4x metal gear servos, large torque force, smooth moving


Robot Arm for micro:bit demo


Robot Arm for micro:bit dimensions

Development Resources

Wiki : www.waveshare.com/wiki/Robot_Arm_for_micro_bit

Quick Overview

Note: micro:bit is NOT included.

  1. Metal arm parts x1
  2. MGR Servo x1
  3. MGS Servo x3
  4. MGR Servo wheel x1
  5. Servo Driver for micro:bit x1
  6. OPTIONS Power adapter x1
  7. Servo extension wire 150mm x1
  8. Screws pack x1
  9. Screwdrivers 2PCS x1
Robot Arm for micro:bit package