- Rollback: override verifyRollbackLater() so a new OTA image stays
pending until it ran 60 s with WiFi; any earlier restart rolls back
(the Arduino core marked every image valid at boot before)
- Task watchdog (30 s) on loop(), paused during OTA uploads
- Crash counter in RTC memory: OTA-only window after a crash, 10 min
safe mode (WiFi + OTA only) after 3 crashes in a row
- Restart when WiFi stays down for 10 min
- Home Assistant sensor 'FlipDot Display Firmware' with version/state
- logic/boot_policy with tests (60 tests total)
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Structure (src/esp32/):
- logic/: DisplayController, schedule, power timer, LED pattern; pure C++
- display/: FlipdotFrames and bitmaps
- nano_link/: NanoLink (relay, serial, READY, bootloader) and flash bridge
- net/: WiFi/OTA/panic window, Home Assistant
- config.h with all settings; libs.h (globals in a header) removed
Bug fixes:
- Home Assistant switches now report their state back and start as ON
- loop() no longer blocks: WiFi.waitForConnectResult() (up to 60 s
without WiFi) and getLocalTime() (5 s before NTP sync) were called
every iteration
- Power switch off now powers off after 1 s even when a 30 s countdown
is already running
- millis() overflow safe power-off timer; no frame catch-up bursts
- No garbage time string before NTP sync; 'Connecting...' stays instead
- Frames are only sent when the screen changes instead of every second
- Reset reasons are logged once instead of every 100 ms
- Removed dead code (unused fonts, WiFiMulti, rotated bitmap, ...)
Tests: new test_esp32 environment (26 tests); native renamed to test_nano
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
mangavalkandClaude Opus 5.5