DFRobot Gravity: Offline Edge AI Gesture & Face Detection Sensor enables touchless gesture control and multi-person presence detection, designed for privacy-sensitive and real-time IoT applications. With a built-in AI processor and camera, this Edge AI Vision Sensor recognizes five hand gestures and detects up to 10 faces or upper-body presences within a 3-meter range—all without cloud connectivity. Featuring dual communication interfaces (I2C and UART) and wide voltage support (3.3V–5V), this module is fully compatible with Arduino, Raspberry Pi, ESP32 and graphical platforms like MakeCode and Mind+. It is ideally suited for smart home interfaces, touchless control systems, public interaction devices, and privacy-focused IoT solutions. Key Features Offline edge AI processing with no cloud dependency for maximum privacy. Recognizes five intuitive hand gestures (e.g., thumbs up, peace sign). Detects and counts up to 10 faces or upper-body presences in real-time. Wide detection range: 0.5 to 3 meters with 85° field of view. Dual communication interfaces: I2C and UART. Compatible with 3.3V and 5V systems like Arduino Uno R3 and ESP32. Works with MakeCode, and Mind+ for graphical programming. Low power consumption: only 100mA typical current draw. Edge AI Processing – Real-Time and Fully Offline All gesture and presence recognition is handled by the onboard AI processor. This ensures maximum privacy, as no data is stored or transmitted externally. Perfect for public restrooms, hospitals, children's systems, and privacy-first smart devices. Intuitive Gesture Recognition – Touchless, Contact-Free Control Detects 5 predefined hand gestures within a range of 0.5 to 3 meters: Thumbs up Open palm Peace sign (index and middle fingers) Shaka sign (thumb and pinky extended) Three-finger gesture (middle, ring, and pinky extended) Each gesture triggers a unique RGB indicator, simplifying visual feedback and human-machine interface development. Multi-Person Detection with Face and Upper-Body Recognition The sensor can recognize up to 10 faces or upper-body patterns simultaneously. Outputs real-time position data and presence count, ideal for: Smart HVAC and lighting automation People counting in commercial or public environments Interactive public kiosks or displays Wide Field of View and Flexible Mounting 85° diagonal field of view covers a wide detection zone. Works reliably on walls, ceilings, desks, and inside enclosures. Ideal for classrooms, conference rooms, hallways, or interactive installations. Applications Wireless Smart Home Gesture Controller Touchless Control Systems for Healthcare or Public Spaces Interactive Art and Educational Displays Smart People Counting Devices for Offices and Retail Privacy-Focused IoT Automation Systems Specifications Category Specification Electrical 3.3V – 5V (3.3V Logic Level) Typical Current 100mA Communication I2C (0x72) / UART (9600bps) Recognition 5 Gestures / 10 Faces / Position Tracking Distance & FOV 0.5m – 3m / 85° diagonal Mechanical 42mm × 32mm Developer Documents Gravity Edge AI Sensor Wiki & User Guide Arduino & ESP32 Programming Tutorial 3D STP & 2D CAD Design Files Package Includes 1 × Gravity: Offline Edge AI Gesture & Face Detection Sensor 1 × PH2.0 - 4P Cable SKU: SEN0626
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