| .. _bbc_microbit_v2: |
| |
| BBC MicroBit V2 |
| ################# |
| |
| Overview |
| ******** |
| |
| The Micro Bit (also referred to as BBC Micro Bit, stylized as micro:bit) is an |
| ARM-based embedded system designed by the BBC for use in computer education in |
| the UK. |
| |
| The board is 4 cm × 5 cm and has an ARM Cortex-M4F processor, accelerometer and |
| magnetometer sensors, Bluetooth and USB connectivity, a display consisting of |
| 25 LEDs, a microphone, two programmable buttons, and can be powered by either |
| USB or an external battery pack. The device inputs and outputs are through five |
| ring connectors that are part of the 23-pin edge connector. |
| |
| .. figure:: img/bbc_microbit2.jpg |
| :align: center |
| :alt: BBC Micro Bit V2 |
| |
| BBC Micro Bit V2 (Credit: http://microbit.org/) |
| |
| More information about the board can be found at the `microbit website`_. |
| |
| Hardware |
| ******** |
| |
| The micro:bit-v2 has the following physical features: |
| |
| * 25 individually-programmable LEDs |
| * 2 programmable buttons |
| * Microphone sensors |
| * Physical connection pins |
| * Light and temperature sensors |
| * Motion sensors (accelerometer and compass) |
| * Wireless Communication, via Radio and Bluetooth 5 |
| * USB interface |
| |
| |
| Supported Features |
| ================== |
| |
| The bbc_microbit_v2 board configuration supports the following |
| hardware features: |
| |
| +-----------+------------+----------------------+ |
| | Interface | Controller | Driver/Component | |
| +===========+============+======================+ |
| | NVIC | on-chip | nested vectored | |
| | | | interrupt controller | |
| +-----------+------------+----------------------+ |
| | RTC | on-chip | system clock | |
| +-----------+------------+----------------------+ |
| | UART | on-chip | serial port | |
| +-----------+------------+----------------------+ |
| | GPIO | on-chip | gpio | |
| +-----------+------------+----------------------+ |
| | FLASH | on-chip | flash | |
| +-----------+------------+----------------------+ |
| | RADIO | on-chip | Bluetooth | |
| +-----------+------------+----------------------+ |
| |
| Programming and Debugging |
| ************************* |
| |
| Flashing |
| ======== |
| |
| Build and flash applications as usual (see :ref:`build_an_application` and |
| :ref:`application_run` for more details). |
| |
| Here is an example for the :ref:`hello_world` application. |
| |
| First, run your favorite terminal program to listen for output. |
| |
| .. code-block:: console |
| |
| $ minicom -D <tty_device> -b 115200 |
| |
| Replace :code:`<tty_device>` with the port where the micro:bit board |
| can be found. For example, under Linux, :code:`/dev/ttyACM0`. |
| |
| Then build and flash the application in the usual way. |
| |
| .. zephyr-app-commands:: |
| :zephyr-app: samples/hello_world |
| :board: bbc_microbit_v2 |
| :goals: build flash |
| |
| |
| References |
| ********** |
| |
| .. target-notes:: |
| |
| .. _microbit website: http://www.microbit.org/ |