BBC micro:bit V2

Hardware

Platform Nordic nRF52: The nRF52 Series are built for speed to carry out increasingly complex tasks in the shortest possible time and return to sleep, conserving precious battery power. They have a Cortex-M4F processor which makes them quite capable Bluetooth Smart SoCs.

Microcontroller

NRF52833

Frequency

64MHz

Flash

512KB

RAM

128KB

Vendor

BBC

Configuration

Please use bbcmicrobit_v2 ID for board option in “platformio.ini” (Project Configuration File):

[env:bbcmicrobit_v2]
platform = nordicnrf52
board = bbcmicrobit_v2

You can override default BBC micro:bit V2 settings per build environment using board_*** option, where *** is a JSON object path from board manifest bbcmicrobit_v2.json. For example, board_build.mcu, board_build.f_cpu, etc.

[env:bbcmicrobit_v2]
platform = nordicnrf52
board = bbcmicrobit_v2

; change microcontroller
board_build.mcu = nrf52833

; change MCU frequency
board_build.f_cpu = 64000000L

Uploading

BBC micro:bit V2 supports the following uploading protocols:

  • blackmagic

  • cmsis-dap

  • jlink

  • mbed

  • nrfjprog

  • stlink

Default protocol is cmsis-dap

You can change upload protocol using upload_protocol option:

[env:bbcmicrobit_v2]
platform = nordicnrf52
board = bbcmicrobit_v2

upload_protocol = cmsis-dap

Debugging

Debugging - “1-click” solution for debugging with a zero configuration.

Warning

You will need to install debug tool drivers depending on your system. Please click on compatible debug tool below for the further instructions and configuration information.

You can switch between debugging Tools & Debug Probes using debug_tool option in “platformio.ini” (Project Configuration File).

BBC micro:bit V2 has on-board debug probe and IS READY for debugging. You don’t need to use/buy external debug probe.

Compatible Tools

On-board

Default

Black Magic Probe

CMSIS-DAP

Yes

Yes

J-LINK

ST-LINK

Frameworks

Name

Description

Arduino

Arduino Wiring-based Framework allows writing cross-platform software to control devices attached to a wide range of Arduino boards to create all kinds of creative coding, interactive objects, spaces or physical experiences.

Zephyr

Zephyr is a new generation, scalable, optimized, secure RTOS for multiple hardware architectures