; ── PlatformIO project configuration ─────────────────────────────────────────
; Board  : Seeed XIAO nRF52840 Sense
; Core   : Adafruit nRF52 Arduino (via Seeed platform-seeedboards)
; Flash  : adafruit-nrfutil over USB serial (same as Arduino IDE)
;
; First-time setup:
;   pip install adafruit-nrfutil          <- upload tool (once, globally)
;   pio run -t upload                     <- build + flash
; ──────────────────────────────────────────────────────────────────────────────

[env:xiao_nrf52840_sense]
platform  = https://github.com/Seeed-Studio/platform-seeedboards.git
board     = seeed-xiao-afruitnrf52-nrf52840
framework = arduino

; ── Upload ────────────────────────────────────────────────────────────────────
; The XIAO uses a UF2 bootloader that accepts firmware via adafruit-nrfutil.
; Double-tap the reset button to enter bootloader (red LED pulses) before
; flashing if the board isn't auto-reset by the tool.
upload_protocol = nrfutil
upload_speed    = 115200
; Uncomment and set the correct port if auto-detect fails:
; upload_port   = COM3

; ── Build flags ───────────────────────────────────────────────────────────────
build_flags =
    -DARDUINO_Seeed_XIAO_nRF52840_Sense
    -DNRF52840_XXAA

; ── Libraries ─────────────────────────────────────────────────────────────────
; bluefruit.h, Adafruit_LittleFS.h, InternalFileSystem.h are bundled with
; the Adafruit nRF52 core and do NOT need to be listed here.
; Only external libraries are listed:
lib_deps =
    Seeed-Studio/Seeed Arduino LSM6DS3 @ ^2.0.3

; ── Serial monitor ────────────────────────────────────────────────────────────
monitor_speed = 115200