Spatial Interaction Module
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The Spatial Interaction Module combines depth sensing and thermal imaging to measure how customers interact in retail.
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Model information
- Source
- Printables
- Category
- Other Gadgets
- License
- Creative Commons — Attribution — Noncommercial — Share Alike
The Spatial Interaction Module combines depth sensing and thermal imaging to measure how customers approach, occupy, and engage with a physical area. The module provides a privacy-conscious alternative to traditional video capture while helping businesses evaluate traffic, dwell, proximity, and interaction patterns to inform decisions around layout, merchandising, placement, and overall experience performance. This is my primary use case.
The system uses the Adafruit ESP32-S2 Reverse TFT Feather, the Adafruit MLX90640 IR Thermal Camera Breakout - 55 Degree, the SparkFun Qwiic ToF Imager - VL53L5CX, and the Adafruit DS3231 Precision RTC. The device, which acts as a interaction logger (AI-generated code), is powered by a Lithium Ion Polymer Battery - 3.7v 500mAh, and is connected via three STEMMA QT / Qwiic JST SH 4-Pin Cables (2 50mm long and 1 100mm long). The microcontroller and breakout boards are held in place with 2.00mm screws.
The housing is printed in PETG. The housing is also printed without top and bottom layers. The infill is Gyroid. The tolerances between the top and bottom components need to be tight for a secure fit. The insert is printed in matte black PLA.