SEN0626, Gravity: Offline Edge AI Gesture & Face Detection Sensor – 3m (Arduino/ RPi/ ESP32)

SEN0626, Gravity: Offline Edge AI Gesture & Face Detection Sensor – 3m (Arduino/ RPi/ ESP32)

The Gravity: Offline Edge AI Gesture & Face Detection Sensor is designed for intuitive gesture control and multi-person presence detection. Equipped with an integrated camera and onboard AI processor, the sensor can recognize 5 predefined hand gestures and detect up to 10 faces or upper-body presences simultaneously within a 3-meter range. By combining computer vision and real-time edge AI computing, it delivers responsive and private interaction without cloud dependency.

Wiki: SKU SEN0626 Gesture and Face Detection Module Wiki

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.

Edge AI Processing – Real-Time, Offline, and Privacy-Safe

All recognition tasks are handled locally by the onboard AI processor—no data is stored or transmitted to the cloud. This completely offline operation guarantees data privacy, making it ideal for sensitive scenarios such as hospital automation, bathroom controls, children’s systems, or public restrooms. Despite its powerful capabilities, it consumes only 100mA (typical), suitable for power-sensitive or standalone applications.

Recognizes 5 Intuitive Hand Gestures – Touchless Control Made Easy

The AI gesture and face detection sensor supports recognition of five intuitive hand gestures—including thumbs up, peace sign, and open palm—within a 0.5 to 3 meter range. Each gesture triggers a distinct RGB indicator, enhancing interaction feedback and simplifying development. Ideal for smart appliances, gesture-activated lights, assistive devices, and public kiosks.

Wide Detection Range with Optimized Field of View

With an 85° diagonal field of view and up to 3 meters detection range, the AI gesture and face detection sensor ensures consistent performance whether installed on walls, ceilings, or desks. Its wide coverage allows use in compact enclosures, hallways, or open rooms, serving multi-user environments such as classrooms, conference areas, or interactive displays.

Upper-Body and Face Detection with Real-Time Count

Beyond gesture control, the sensor detects head-and-shoulder patterns and can recognize up to 10 human presences or faces simultaneously, providing position and count output in real time. Perfect for occupancy-based HVAC, lighting automation, and people counting in offices, shops, and smart spaces—all with full offline privacy assurance.

Features

• Offline AI gesture & face detection with fast, accurate response
• High-sensitivity detection of five hand gestures
• Reliable face and body presence detection up to 3 meters
• Simultaneous recognition of up to 10 faces or upper-body presences
• Dual communication interfaces: I2C and UART
• Compatible with both 3.3V and 5V systems
• Supports graphical coding environments including MakeCode and Mind+

Applications

• Wireless Smart Home Gesture Controller System
• Gesture-Enabled Remote Control Systems for Healthcare
• Interactive Art Device
• Smart People Counting Device

Specification

Electrical Specifications

• Operating Voltage: 3.3V – 5V
• Logic Level Voltage: 3.3V
• Current Consumption: 100mA

Communication & Interface

• Connector Type: PH2.0-4P / 2.54mm pin header
• Communication Protocols: I2C / UART
• I2C Address: 0x72
• Default UART Baud Rate: 9600bps
• UART Protocol: Modbus - RS485
• Interrupt Output: 2.54mm pin header

Recognition Capabilities

• Supported Gesture Types (5):
        Thumbs up
        Extend the middle, ring, and little fingers
        Open palm facing outward
        Extend the index and middle fingers
        Extend the thumb and little finger
• Maximum Recognizable Faces & Head-Shoulder Count: 10
• Detection Area for Face & Shoulders: Recognizes upper-body presence within camera range
• Face Recognition Confidence Score: 0 – 100
• Position Coordinate Output: Supported
• Gesture Recognition Distance: 0.5m – 3m
• Face Recognition Distance: 0.5m – 3m
• Camera Field of View (FoV): 85° (diagonal)
• Camera Focal Length: 1.56mm

Visual Indicators

• Gesture Recognition RGB Indicator:
        Blue: Thumbs up
        Green: Extend the middle, ring, and little fingers
        Red: Open palm outward
        Yellow: Extend the index and middle fingers
        Purple: Extend the thumb and little finger
• Presence Detection LED: Illuminates when a person is detected, turns off when no presence is detected