AlphaBot2 robot building kit for BBC micro:bit

SKU: 15401
Part Number: AlphaBot2 for micro:bit (EN)




AlphaBot2 robot building kit for micro:bit, with controller BBC micro:bit


This AlphaBot2 robot kit is designed to use with the BBC micro:bit. It features rich common robot functions including line tracking, obstacle avoiding, ultrasonic ranging, Bluetooth/2.4G remote control, etc.

Thanks to the highly integrated modular design, it is fairly easy to assemble by a snap, no soldering, no wiring. After a few minutes spent on hardware assembing, you're almost there, our open source demo codes is ready to help you get started fast.

micro:bit Overview

The BBC micro:bit is an open development board that allows you to run code on it and have access to all of the hardware.

You can use your BBC micro:bit for all sorts of cool creations, from robots to musical instruments – the possibilities are endless. This little device has an awful lot of features, like 25 red LED lights that can flash messages. There are two programmable buttons that can be used to control games or pause and skip songs on a playlist. Your BBC micro:bit can detect motion and tell you which direction you’re heading in, and it can use a low energy Bluetooth connection to interact with other devices and the Internet.


  • Nordic nRF51822
    • 16 MHz 32-bit ARM Cortex-M0 microcontroller
    • Bluetooth® 4.0 low energy/2.4GHz RF SoC
    • 16kB RAM
    • 256kB Flash
  • Freescale KL26Z – 48 MHz ARM Cortex-M0+ MCU
  • Compass – Freescale MAG3110 3-axis magnetometer, I2C interface
  • Accelerometer – Freescale MMA8652 3-axis accelerometer, I2C interface
  • Power connector – 3V power supply
  • Reset button – reset the system
  • Micro USB connector – for connecting PC, download code, serial communication, etc.
  • 5x5 LED display – 5x5 LED grid
  • Button A/B – programmable buttons
  • I/O connection pins – 5 I/O rings and 20-pin edge connector, including SPI, UART, I2C, Analog, PWM, etc.
  • Dimensions – 5cm x 4cm

AlphaBot2 Features

AlphaBot2 employs a 2-layer structure to provide excellent stability and compatibility.

AlphaBot2-Base, the lower base chassis:

  • 5-ch infrared sensor, analog output, combined with PID algorithm, stable line tracking
  • Onboard modules like line tracking, obstacle avoiding, needs no messy wiring
  • TB6612FNG dual H-bridge motor driver, compared with L298P, it's more efficient, more compact, and less heating
  • N20 micro gear motor, with metal gears, low noise, high accuracy
  • Onboard RGB LEDs, true color lighting, pretty cool

AlphaBot2 for micro:bit, the upper adapter board for controller:

  • micro:bit dedicated connector, for easily connecting with the micro:bit
  • MP1584 voltage regulator, provides stable 5V output
  • RT9193-33 voltage regulator, provides stable 3.3V voltage to the micro:bit
  • TLC1543 AD acquisition chip, allows the micro:bit to use analog sensors
  • PCA9685 PWM control chip, I/O expander
  • Onboard buzzer to play music

What's on the AlphaBot2-Base

AlphaBot2-Base on board resource

  1. AlphaBot2 control interface: for connecting sorts of controller adapter board
  2. Ultrasonic module interface
  3. Obstacle avoiding indicators
  4. Omni-direction wheel
  5. ST188: reflective infrared photoelectric sensor, for obstacle avoiding
  6. ITR20001/T: reflective infrared photoelectric sensor, for line tracking
  7. Potentiometer for adjusting obstacle avoiding range
  8. TB6612FNG dual H-bridge motor driver
  9. LM393 voltage comparator
  10. N20 micro gear motor reduction rate 1:30, 6V/600RPM
  11. Rubber wheels diameter 42mm, width 19mm
  12. Power switch
  13. Battery holder: supports 14500 batteries
  14. WS2812B: true color RGB LEDs
  15. Power indicator

What's on the AlphaBot2 for micro:bit (Adapter Board)

AlphaBot2 for micro:bit on board resource
  1. micro:bit connector
  2. AlphaBot2-Base header: for connecting with the base board
  3. RT9193-33: 3.3V voltage regulator, stable power supply for the micro:bit
  4. PCA9685: PWM control chip, I/O expander, I2C interface
  5. TLC1543: 10-bit AD acquisition chip, allows the micro:bit to use analog line tracking sensor
  6. Buzzer
  7. MP1584 5V voltage regulator
AlphaBot2-for-micro-bit illustration AlphaBot2-for-micro-bit illustration AlphaBot2-for-micro-bit illustration

Note: the 2.4G gamepad is NOT included in the price, besides, totally two micro:bit are required for 2.4G RF remote control.

micro:bit Robot AlphaBot2
AlphaBot2 for micro:bit top view
micro:bit Robot AlphaBot2
AlphaBot2 for micro:bit bottom view
micro:bit Robot AlphaBot2
AlphaBot2-Base top view
micro:bit Robot AlphaBot2
AlphaBot2-Base bottom view
micro:bit Robot AlphaBot2
AlphaBot2 for micro:bit robot side view
micro:bit Robot AlphaBot2
AlphaBot2 for micro:bit robot side view
micro:bit Robot AlphaBot2
AlphaBot2 for micro:bit robot front view
micro:bit Robot AlphaBot2
AlphaBot2 for micro:bit robot back view


AlphaBot2-Base dimensions

Development Resources

Wiki :

Selection Guide

Package Contents AlphaBot2 Robot Kits
Item Description Ar Acce Ar PiZero Acce PiZero W PiZero WH Pi Acce Pi Pi3 B+ m:b Acce m:b
Raspberry Pi 3 Model B Raspberry Pi 3 Model B      
Raspberry Pi 3 Model B+ Raspberry Pi 3 Model B+      
AlphaBot2-Pi Adapter board, for connecting Raspberry Pi    
Raspberry Pi Zero W Raspberry Pi Zero W (built-in WiFi)          
Raspberry Pi Zero WH Raspberry Pi Zero WH (built-in WiFi, pre-soldered headers)          
AlphaBot2-PiZero Adapter board, for connecting RPi Zero W/WH
UNO PLUS Enhanced Arduino compatible board
AlphaBot2-Ar Adapter board, for connecting Arduino
Dual-mode Bluetooth Dual-mode Bluetooth module
micro:bit BBC micro:bit, a pocket-sized computer                  
AlphaBot2 for micro:bit Adapter board, for connecting micro:bit                
AlphaBot2-Base Motor driver, integrates sensors for obstacle avoiding, line tracking
Ultrasonic sensor Ultrasonic obstacle avoiding, ranging
IR remote controller remotely control the robot    
RPi Camera (B)  Raspberry Pi camera, adjustable focus    
SG90 Servo, working with the pan head, controlling the rotation of the camera    
Micro SD Card 16GB 16GB Miro SD Card, class 10    
5V 3A Power Adapter Provides 5V 3A power supply, micro USB plug    

Note: Due to the structure design, ultrasonic sensor module can NOT be used with the AlphaBot2-Pi kit.

Package Content

Weight: 0.253 kg

Quick Overview

Note: this product requires two 14500 batteries to work, which are NOT included and should be purchased separately.

AlphaBot2 for micro:bit Acce Pack

  1. AlphaBot2 for micro:bit (adapter board) x1
  2. AlphaBot2-Base (base chassis) x1
  3. Ultrasonic sensor x1
  4. FC-20P cable 8cm x1
  5. USB type A plug to micro B plug cable x1
  6. AlphaBot2 for micro:bit screws x1
  7. Screwdriver x1 (Extra Free)

Additional Parts in the Kit

  1. micro:bit x1