# Handshake Capture - ESP32-C6 1.47" LCD

Automatic WiFi 4-way handshake capture for Waveshare ESP32-C6-LCD-1.47.

## Features

- **SD card storage**: Saves `.pcap` files to TF card (not SPIFFS)
- **Auto-deauth**: Aggressive 150ms deauth interval to force handshakes
- **Display**: Networks in **green** = not captured, **red** = captured
- **No web interface**: Capture-only device
- **WPA/WPA2 only**: Skips Open/WEP networks
- **BSSID cache**: Captured networks stay red across rescans

## Hardware

- Waveshare ESP32-C6-LCD-1.47 (non-touch, ST7789)
- TF card in onboard slot

## Build & Flash

Requires LVGL and lv_conf from the ESP32-C6-LCD-1.47-Demo:

```bash
cd "/path/to/4 way handshake"
arduino-cli compile \
  -b 'esp32:esp32:esp32c6:PartitionScheme=huge_app' \
  --build-path /tmp/arduino-build-handshake-c6 \
  --libraries "ESP32-C6-LCD-1.47-Demo/Arduino/libraries" \
  handshake-capture-c6
```

```bash
arduino-cli upload \
  -p /dev/cu.usbmodem* \
  -b 'esp32:esp32:esp32c6:PartitionScheme=huge_app' \
  --input-dir /tmp/arduino-build-handshake-c6
```

Use `arduino-cli board list` to find the correct port.

## Flow

1. Boot → scan → display networks (green)
2. Pick first uncaptured WPA/WPA2 network
3. Set channel, deauth every 150ms, capture EAPOL
4. On full handshake → save to SD, mark red, next network
5. When all done → rescan, repeat