An advanced ESP32-C6 project that combines gesture recognition, OLED UI, web-based configuration, and HTTP push integration.
- 👋 Gesture Input using PAJ7620U2 sensor (via RevEng_PAJ7620 library)
- 🖥️ OLED Display with status, gesture, action, and IP info (U8g2lib)
- 🌐 Wi-Fi Setup via Captive Portal (AP mode if not configured)
- 🛜 HTTP Push Actions: Configurable POST actions for up to 9 gestures
- ⚙️ Web Configuration UI for gesture-action mapping
- 🔁 System Recovery Logic for gesture sensor, SPIFFS, and Wi-Fi
- 💡 Dark Mode and responsive UI in web server
- 🗂 SPIFFS Storage for gesture config, logs, and flash stats
- 📈 SSE (Server-Sent Events) for real-time logs and display updates
- 🔘 Physical Reset Button to erase Wi-Fi settings (GPIO2)
- 🕹️ Live Logs and action feedback via OLED and Web UI
Supported gestures:
- Right
- Left
- Up
- Down
- Forward
- Backward
- Clockwise
- Anticlockwise
- Wave
Each gesture can trigger one or more HTTP POST actions with JSON payloads.
The display cycles through:
- Connection status
- Last gesture detected
- Last action triggered
- Device IP address
If text exceeds screen width, it scrolls smoothly.
| Endpoint | Description |
|---|---|
/ |
Main UI with logs & gesture status |
/config |
Gesture-to-Action configuration |
/wifiSetup |
Captive portal for Wi-Fi config |
/logs |
JSON output of recent logs |
/exportGestures |
Export configuration (JSON) |
/importGestures |
Import configuration (JSON) |
- XIAO ESP32-C6
- PAJ7620U2 Gesture Sensor
- SSD1306 128x64 OLED (I²C)
- (Optional) TFT Display for log output
- Momentary Push Button on GPIO2
| Library | Version |
|---|---|
| U8g2lib | 2.35.30 |
| RevEng_PAJ7620 | 1.5.0 |
| ESPAsyncWebServer | 3.7.6 |
| ArduinoJson | 7.2.1 |
| HTTPClient (built-in) | Arduino Core |
| Preferences (built-in) | Arduino Core |
- Web-configurable gesture actions are stored in SPIFFS as
.jsonfiles. - Flash statistics are shown live in the UI and sent via SSE.
- Press and hold the reset button (GPIO2) for 3 seconds to clear saved Wi-Fi settings and enter AP mode.
- Gesture action mappings can be saved, exported, and imported via
/config. - OLED scrolls long strings automatically to stay readable.
Jesse Greene
Berlin, Germany
Designed for performance, resilience, and style.