; PlatformIO project for the SPA CONTROLLER board (ESP32-WROOM + 8ch relay).

;

; PlatformIO pins library versions and, via `build_flags = -I..`, lets the sketch

; include the shared headers (hot_tub_types.h, secrets.h) straight from the repo

; root — so no per-directory header symlinks are needed.

;

; Two build environments:

; controller (default) — BLE/BTHome OFF. Default partition, no NimBLE dep.

; controller-ble — BLE/BTHome ON (-DENABLE_BLE_BTHOME). NimBLE + bigger

; partition. See BTHomeUtils.h.

;

; Usage:

; cd controller

; pio run # compile default (BLE off)

; pio run -t upload # flash default over USB

; pio run -e controller-ble -t upload # build+flash the BLE variant

; pio run -t uploadfs # flash the data/ web UI to SPIFFS

; pio device monitor # serial console

;

; The Makefile in this directory is a thin convenience wrapper around these

; commands plus a few HTTP-based helpers (OTA push, live SPIFFS sync).

[platformio]

src_dir = .

include_dir = .

; Only the BLE-off build runs on a bare `pio run`; the BLE variant is explicit (-e).

default_envs = controller

; Settings shared by both environments.

[env]

; Arduino-ESP32 3.x (IDF 5.x). The ESP-NOW callbacks are guarded for the 3.1+

; send-callback signature change (see ESPNowUtils.cpp), so the latest core builds.

platform = espressif32

board = esp32dev

framework = arduino

monitor_speed = 115200

upload_port = /dev/ttyUSB0

monitor_port = /dev/ttyUSB0

; Resolve shared headers from the repo root instead of per-dir symlinks.

build_flags =

-I..

-std=gnu++17

build_unflags = -std=gnu++11

board_build.filesystem = spiffs

lib_deps =

bblanchon/ArduinoJson @ ^6.21.0

milesburton/DallasTemperature @ ^3.11.0

paulstoffregen/OneWire @ ^2.3.7

paulstoffregen/Time @ ^1.6.1

; Default: BLE/BTHome disabled. Uses the stock partition table (no NimBLE, so the

; firmware fits the default app slot as before).

[env:controller]

; Opt-in: BLE BTHome broadcast enabled. NimBLE bloats the firmware past the default

; app partition, so switch to min_spiffs.csv (two ~1.9MB OTA app slots + a small

; SPIFFS; the web UI in data/ is ~52KB). Re-flash over USB once when moving between

; the two partition layouts (OTA can't repartition).

[env:controller-ble]

build_flags =

${env.build_flags}

-DENABLE_BLE_BTHOME

board_build.partitions = min_spiffs.csv

lib_deps =

${env.lib_deps}

h2zero/NimBLE-Arduino @ ^2.2.3