# Gravity: AI Visual Gesture and Human Presence Tracking Sensor (5 Gestures, Range 3m)

**Type:** Product page · **SKU:** SEN0626 · **Brand:** [DFRobot](https://core-electronics.com.au/brands/dfrobot-australia)
**Page:** https://core-electronics.com.au/ai-visual-gesture-human-presence-tracking-sensor-dfrobot.html ([markdown](https://core-electronics.com.au/ai-visual-gesture-human-presence-tracking-sensor-dfrobot.html.md))

Enhance smart automation with AI-powered gesture recognition & human presence tracking. Ideal for touch-free control in homes, public displays &...

> ⚠ Deal is for shelf stock only — any additional stock will be at the normal price.

## Pricing

- **Price:** $24.27 (inc GST) — $22.06 AUD, exc GST

## Availability & dispatch

- In stock, ships same business day if ordered before 2PM (Australia/Sydney). Delivered by Tue, 11th of Aug.
- We can dispatch 21 today, and up to 500 more in 8–12 days.

## Description

The AI Visual Gesture and Human Presence Tracking Sensor is a high-performance, offline AI recognition module designed for non-contact interaction. Featuring advanced gesture recognition and head-and-shoulder detection, it identifies up to five distinct gestures and senses human presence within a range of 3 meters. Compatible with [Arduino](https://www.dfrobot.com/topic-277.html), [Raspberry Pi](https://core-electronics.com.au/raspberry-pi.html), and [IoT](https://www.dfrobot.com/topic-276.html) ecosystems, it enables seamless, touch-free control in hygiene-sensitive environments, high-noise scenarios, and smart automation systems.

![AI Visual Gesture and Human Presence Tracking Sensor can detects 5 distinct gestures](https://core-electronics.com.au/attachments/localcontent/1_0x0_181681a21cb.webp)

Figure: Detects Five Distinct Gestures

Advanced AI-Powered Gesture Recognition

The sensor accurately recognizes 5 predefined gestures at distances up to 3 meters, enabling intuitive and contact-free interaction. Ideal for applications such as non-contact device operation, smart home control, and interactive public displays.Human Presence and Motion DetectionWith built-in head-and-shoulder detection, the sensor identifies human presence and movement in its field of view. It outputs the number and coordinates of detected upper-body targets, allowing smart devices like fans or lighting systems to dynamically respond to user location—enhancing automation and energy efficiency. Versatile Integration and Seamless ConnectivitySupporting both I2C and UART communication, the sensor integrates easily with various embedded platforms. Operating at 3.3V–5V, it is also compatible with graphical programming platforms such as MakeCode and Mind+, simplifying development and deployment.

### Specification

Electrical Specifications

8. Operating Voltage: 3.3V – 5V
9. Logic Level Voltage: 3.3V
10. Current Consumption: 100mA
Communication & Interface

12. Connector Type: PH2.0-4P / 2.54mm pin header
13. Communication Protocols: I2C / UART
14. I2C Address: 0x72
15. Default UART Baud Rate: 9600bps
16. UART Protocol: Modbus
17. Interrupt Output: 2.54mm pin header
Recognition Capabilities

19. 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
20. Maximum Recognizable Faces & Head-Shoulder Count: 10
21. Detection Area for Face & Shoulders: Recognizes upper-body presence within camera range
22. Face Recognition Confidence Score: 0 – 100
23. Position Coordinate Output: Supported
24. Gesture Recognition Distance: 0.5m – 3m
25. Face Recognition Distance: 0.5m – 3m
26. Camera Field of View (FoV): 85° (diagonal)
27. Camera Focal Length: 1.56mm
Visual Indicators

29. 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
30. Presence Detection LED: Illuminates when a person is detected, turns off when no presence is detected
Mechanical Dimensions

32. PCB Dimensions: 42mm × 32mm
33. Mounting Hole Spacing: 25mm × 35mm
34. Mounting Hole Diameter: 3.1mm
### Documents

36. [Product wiki](https://wiki.dfrobot.com/SKU_SEN0626_Gesture_and_Face_Detection_Module)
37. [Arduino Tutorial](https://wiki.dfrobot.com/SKU_SEN0626_Gesture_and_Face_Detection_Module#target_8)
38. [Mind+ (Based on Scratch3.0) Graphical Programming](https://wiki.dfrobot.com/SKU_SEN0626_Gesture_and_Face_Detection_Module#target_9)
39. [Makecode Tutorial](https://wiki.dfrobot.com/SKU_SEN0626_Gesture_and_Face_Detection_Module#target_10)
40. [2D CAD](https://core-electronics.com.au/attachments/localcontent/2d837f00a57ae79aed001b3a622175bf_15437c86452.png)
41. [2D DXF](https://core-electronics.com.au/attachments/localcontent/2e323883ba778f06b40bdec5e674e0a7_329519105af.rar)
42. [3D STP](https://core-electronics.com.au/attachments/localcontent/079fd85b1ab5a35f4e8bd010ebf56cc7_1727360209b.rar)

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/S/E/SEN0626-1.jpg)