Date: 2026-05-29
This is the default hands-free upload family for the package's USB-DFU boards. On Windows the package uses upload.ps1; on Linux/macOS it uses upload.py plus adafruit-nrfutil.
Boards packaged on this family include the validated AliExpress ProMicro nRF52840 path plus the modeled nice!nano v2, SuperMini, nRFMicro, XIAO, and Pitaya Go definitions. See ../uploads/hands_free_upload.md and ../COMPATIBILITY.md.
Some board menus still carry UF2 metadata and legacy/manual bootloader options. Those paths remain useful for recovery and manual drag-and-drop workflows, but the repository's currently verified no-button path is the ProMicro clone's Adafruit serial DFU flow rather than a generic UF2 claim.
The usb_dongle_nrf52840 target (PCA10059) uses Nordic Open DFU, not Adafruit serial DFU. Use Nordic tooling such as nrfutil or nRF Connect for Desktop rather than the package's default niusdfu flow for that board.
Generic dev boards, official Nordic DK-style hardware, and any board exposing usable pads can be flashed over SWD. The package supports application flashing over SWD / OpenOCD, but it does not currently provide a bootburn-style workflow to install or replace bootloaders.
The package assumes either USB DFU or SWD-based upload depending on the board definition. It does not currently bundle or manage bootloader flashing through a bootburn-style workflow.