v1.0.0 — Initial stable release

First stable release of the Core driver library.

What's included

• Full F4F5 binary protocol implementation (9600 8N1, byte stuffing, 16-bit checksum)
• Complete command surface: power, mode, target temperature, fan speed, swing, presets (Turbo/Eco), display
• Periodic status polling with decoded DeviceStatus struct
• TX state machine with queueing, inter-message gaps, and ACK handling
• Temperature command debouncing (1 s)
• Auto-polarity diagnostic: detects UART polarity mismatch via the 41 41 7F E5 7F 03 signature in inverted responses; fires a rate-limited callback (once per 30 s) so the host layer can log an actionable warning
• Wiring-issue diagnostic: fires when 64 bytes accumulate with no recognizable pattern and no polarity signature
• Level shifter reference schematic (docs/level_shifter_2n2222_panavox.svg)
• Protocol specification in Markdown (docs/Panavox_PSS-12_INV_Protocol_Specification.md), including empirical UART polarity flexibility notes

Usage

See README for PlatformIO setup and pinning instructions.