Arduino Nano 33 BLE¶

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 and are the most capable Bluetooth Smart SoCs on the market.

Configuration¶

Please use nano33ble ID for board option in “platformio.ini” (Project Configuration File):

[env:nano33ble]
platform = nordicnrf52
board = nano33ble

You can override default Arduino Nano 33 BLE settings per build environment using board_*** option, where *** is a JSON object path from board manifest nano33ble.json. For example, board_build.mcu, board_build.f_cpu, etc.

[env:nano33ble]
platform = nordicnrf52
board = nano33ble

; change microcontroller
board_build.mcu = nrf52840

; change MCU frequency
board_build.f_cpu = 64000000L

Uploading¶

Arduino Nano 33 BLE supports the next uploading protocols:

• cmsis-dap

• jlink

• nrfjprog

• nrfutil

• sam-ba

Default protocol is sam-ba

You can change upload protocol using upload_protocol option:

[env:nano33ble]
platform = nordicnrf52
board = nano33ble

upload_protocol = sam-ba

Debugging¶

PIO Unified Debugger - “1-click” solution for debugging with a zero configuration.

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

Arduino Nano 33 BLE does not have on-board debug probe and IS NOT READY for debugging. You will need to use/buy one of external probe listed below.

Frameworks¶