Octopus til MICRO:BIT | ULTRABIT (breakout board fra Elecfreaks)

By maj 9, 2019 MICRO:BIT

Octopus boardet oversigt

Elecfreaks Octopus:bit er et breakout board til MICRO:BIT eller ULTRA:BIT. Det har udgang med GPIO-port, seriel port, IIC-port og SPI-port på micro:bit kortet. Den største funktion i Octopus:bit er, at den kan skifte elektrisk niveau for nogle GPIO-porte, hvilket gør micro:bit tilgængelig for 5V sensorer.



  • Input volt: 3.3V(forsynet fra edge connector fra micro:bit)
  • Udvidelse af alle GPIO porte(P0~P16, P19~P20).
  • For hver I/O port, findes der pins til VCC og GND. Disse pins er differentierede af forskellige farver, hvilket gør dig istand til at forbinde dit eksterne modul nemt. Opsætningen af pins er fuldt ud kompatible med alle Octopus seriens moduler og produkter fra Elecfreaks.
  • Med et volt boostermodul kan du skifte output på P8, P9, P11~P16 mellem 3.3V og 5V via volt skifteren.
  • Lead out serial port, I2C port and SPI port, among which I2C can connect 3 channels of I2C devices and SPI can connect 2 channels of SPI devices.
  • Available for direct serial port communication between two breakout boards.


It is suitable for all conditions that require micro:bit GPIO such as programming education, smart device creation, and so on.

Pins & Connectors

More Details

Standard GVS Port

Among the standard GVS ports, the working voltage of the yellow part(P0~P7, P10)is 3.3V, while the working voltage of the blue part(P8, P9, P11~P16)can be shifted between 3.3V and 5V through a voltage switch. Beneath each I/O port, there are pins for VCC and GND. These pins are differentiated by different colors, which enable you to connect your extension module easily. The spread of pins is fully compatible with Octopus series’ products.

Voltage Switch

Sliding this switch, we can change the voltage of the blue IO ports(P8, P9, P11~P16)between 3.3V and 5V.

You can see its working range in the below:

Serial Port

The working voltage of serial port is available to be shifted between 3.3V and 5V through the voltage switch. Connect TX to P8,RX to P12. The left pins are bidirectional serial port, which can run both input and output. The right female header is a one-way output serial port.

Note : To use this port, we have to initialize it according to the program in the below:



Example 1 Music Broadcast

Hardware Connection

Connect passive buzzer module to PO.

Code Example

You can download the whole program from the link here: https://makecode.microbit.org/_fAmC3WERHdR2

Download the whole program into your micro:bit, the buzzer will play Happy Birthday again and again in round.

Relative Cases

Music Machine
Smart Light 
Simple Alarm Box
Plant Monitoring Device
Intruder Detection
Fish Feeder
Motion Detector
Lie Detector
Avoid Asteroids
Remote Control Everything 
micro:bit Car
Flipping Pancakes
Maze Runner
Pitch Perfect
Finger Dexterity
Electric Spirit Level
Space Shooter
Flappy Bird
Wire Transmission
Snake Game

Relative Components

BBC micro:bit

Octopus Bricks Series

ElecFreaks Micro:bit Tinker Kit