# Calliope mini

Contents

- Calliope mini

  - Hardware

  - Configuration

  - Uploading

  - Debugging

  - Frameworks

## Hardware

Platform Nordic nRF51: The Nordic nRF51 Series is a family of highly flexible, multi-protocol, system-on-chip (SoC) devices for ultra-low power wireless applications. nRF51 Series devices support a range of protocol stacks including Bluetooth Smart (previously called Bluetooth low energy), ANT and proprietary 2.4GHz protocols such as Gazell.

Microcontroller | NRF51822
Frequency | 16MHz
Flash | 256KB
RAM | 16KB
Vendor | Calliope

## Configuration

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

    [env:calliope_mini]
    platform = nordicnrf51
    board = calliope_mini

You can override default Calliope mini settings per build environment using `board_***` option, where `***` is a JSON object path from board manifest calliope_mini.json. For example, `board_build.mcu`, `board_build.f_cpu`, etc.

    [env:calliope_mini]
    platform = nordicnrf51
    board = calliope_mini

    ; change microcontroller
    board_build.mcu = nrf51822

    ; change MCU frequency
    board_build.f_cpu = 16000000L

## Uploading

Calliope mini supports the next uploading protocols:

- `cmsis-dap`

- `jlink`

- `mbed`

Default protocol is `cmsis-dap`

You can change upload protocol using upload_protocol option:

    [env:calliope_mini]
    platform = nordicnrf51
    board = calliope_mini

    upload_protocol = cmsis-dap

## Debugging

PIO Unified Debugger - “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).

Calliope mini 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
--- | --- | ---
CMSIS-DAP | Yes | Yes
J-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.