nRF52840 SuperMini PlatformIO Starter

Standalone PlatformIO project for nRF52840 SuperMini / nice!nano boards using the Arduino nRF52 framework.

The repository contains the board definition and variant files required by PlatformIO, so a fresh clone does not need the local vendor/ research directory to build.

Quick Start

Build:

pio run

Enter bootloader mode with a quick double reset: short RST to GND, release, then short RST to GND again.

Upload after the board appears as nice!nano:

pio run -t upload

If multiple USB devices are attached, pass the detected nice!nano port:

pio run -t upload --upload-port /dev/cu.usbmodem1101

Monitor serial output when the application exposes a CDC port:

pio device monitor -b 115200

Layout

boards/              Local PlatformIO board definition and Arduino variant
src/                 Application firmware
include/             Project-wide headers and configuration
lib/                 Project-specific reusable libraries
test/                PlatformIO unit tests
examples/            Reference sketches and experiments
scripts/             Developer helper scripts
docs/                Hardware notes, setup, and operating procedures
vendor/              Ignored local research snapshots

Current Firmware

The current firmware powers and drives the SSD1306 OLED panel, reads the four panel buttons, shows a device-mode menu, toggles LED_BUILTIN once per second, and prints status on USB serial when the CDC interface is available.

Useful Commands

pio run
scripts/quality.sh
scripts/format.sh
scripts/size-report.sh
doxygen Doxyfile
pio run -t upload
pio device list
pio device monitor -b 115200

See docs/tooling.md for local hooks and CI gates.