Datasheet
To keep up with Nordic's SoftDevice advances, you will likely need to update your bootloader if you are using the
original nRF52832 based Bluefruit nRF52 Feather boards.
Follow this link for instructions on how to do that
https://adafru.it/Dsx
https://adafru.it/Dsx
Advanced Option: Manually Install the BSP via 'git'
If you wish to do any development against the core codebase (generate pull requests, etc.), you can also optionally
install the Adafruit nRF52 BSP manually using 'git', as decribed below:
Adafruit nRF52 BSP via git (for core development and PRs only)
1. Install BSP via Board Manager as above to install compiler & tools.
2. Delete the core folder nrf52 installed by Board Manager in Adruino15, depending on your OS. It could be
macOS: ~/Library/Arduino15/packages/adafruit/hardware/nrf52
Linux: ~/.arduino15/packages/adafruit/hardware/nrf52
Windows: %APPDATA%\Local\Arduino15\packages\adafruit\hardware\nrf52
3. Go to the sketchbook folder on your command line, which should be one of the following:
macOS: ~/Documents/Arduino
Linux: ~/Arduino
Windows: ~/Documents/Arduino
4. Create a folder named hardware/Adafruit , if it does not exist, and change directories into it.
5. Clone the Adafruit_nRF52_Arduino (https://adafru.it/vaF) repo in the folder described in step 2:
git clone git@github.com:adafruit/Adafruit_nRF52_Arduino.git
6. This should result in a final folder name like
~/Documents/Arduino/hardware/Adafruit/Adafruit_nRF52_Arduino (macOS).
7. Restart the Arduino IDE
This step ISN'T required for the newer nRF52840 Feather Express, which has a different bootloader entirely!
© Adafruit Industries https://learn.adafruit.com/adafruit-itsybitsy-nrf52840-express Page 17 of 179










