Adafruit Bluefruit nRF52832 Feather


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.

Microcontroller NRF52832
Frequency 64MHz
Flash 512KB
Vendor Adafruit


Please use adafruit_feather_nrf52832 ID for board option in “platformio.ini” (Project Configuration File):

platform = nordicnrf52
board = adafruit_feather_nrf52832

You can override default Adafruit Bluefruit nRF52832 Feather settings per build environment using board_*** option, where *** is a JSON object path from board manifest adafruit_feather_nrf52832.json. For example, board_build.mcu, board_build.f_cpu, etc.

platform = nordicnrf52
board = adafruit_feather_nrf52832

; change microcontroller
board_build.mcu = nrf52832

; change MCU frequency
board_build.f_cpu = 64000000L


Adafruit Bluefruit nRF52832 Feather supports the next uploading protocols:

  • jlink
  • nrfjprog
  • nrfutil

Default protocol is nrfutil

You can change upload protocol using upload_protocol option:

platform = nordicnrf52
board = adafruit_feather_nrf52832

upload_protocol = nrfutil


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


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).

Adafruit Bluefruit nRF52832 Feather 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
J-LINK Yes Yes


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