# emulator_firmware

**Emulator module** for the dual-PN532 NFC system: receives NFC captures over **ESP-NOW**, drives PN532 emulation, and logs to **SD card** when available.

## Build

Built via PlatformIO from the **workspace root** (same `platformio.ini` as the listener):

```bash
cd ..
pio run -e emulator
pio run -e emulator -t upload
```

Requires `../common/` for `nfc_protocol.h` and related sources.

## Hardware

See the root [README](../README.md) for ESP32-C3 ↔ PN532 and SD wiring.