Ariadne ToFu People Counter

Wireless Time-of-Flight people counter for real-time foot traffic + occupancy analytics, with clear in/out counts and privacy-focused, camera-free design

ToFu is a compact Time-of-Flight (ToF) people counter that measures foot traffic in real time using multizone ranging (4×4 or 8×8 zones), supports in/out detection, and connects via Wi-Fi or Ethernet to the Ariadne online dashboard (no software installation required). It’s designed for retail analytics use cases like optimizing layouts, staffing, and monitoring high-traffic areas, while remaining privacy-focused.

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About this item

  • Easy to Set Up
  • Fits Anywhere
  • High-Precision Sensing
  • Real-Time Analytics
  • Smart & Efficient
  • Privacy-Focused Design
  • Clear In & Out Counts

Highlights

Easy to Set Up
Plug in + connect via Wi-Fi/Ethernet; no software install; see data on Ariadne online dashboard
Fits Anywhere
Mount on ceiling, wall, or pole; small + lightweight
High-Precision Sensing
ToF tech; up to 64 zones; works up to 3 meters
Real-Time Analytics
Entries/exits, busy areas, space usage from phone/tablet/computer
Smart & Efficient
Adapts to environment; smart filtering; <7W
Privacy-Focused Design
No cameras, no personal info; depth data; secure; GDPR-compliant
Clear In & Out Counts
Distinguishes entering vs exiting for occupancy + flow monitoring

Instructions

Product information

Size
88 mm x 45 mm x 15 mm
Weight
145 g (including housing & optional battery)
Interface
USB-C (Power and Serial Communication)
Memory / Storage
520 KB SRAM / 448 KB ROM / 16 MB external SPI Flash
CPU
Dual-core Xtensa® 32-bit LX6 microprocessor @ 240 MHz
Antennas
2.4 GHz internal onboard antenna
Protocol
IEEE 802.11 b/g/n (2.4 GHz); Bluetooth v4.2 BR/EDR and BLE
Wi-Fi Speed
Up to 150 Mbps (HT40 supported)
Tx Power
Max 20 dBm (2.4 GHz)
Ethernet Port
None
LEDs
Power / Status indicators
Time-of-Flight Sensor
VL53L8CX – Multizone ranging (4×4 or 8×8 configuration), up to 400 cm range, 60 Hz frame rate
Power Input
5V DC via USB-C
PoE Support
Not supported
Power Consumption
0.5–2 W (depending on Wi-Fi/Bluetooth activity)
Battery (Optional)
900 mAh rechargeable (Li-ion)
Working Temperature
-40 °C to +50 °C
Storage Temperature
-40 °C to +50 °C
Housing
UV-stabilized plastic; mounting options available (ceiling mount / wall mount)
Safety Standards
CE: EN IEC 62368-1:2020 + A11:2020; EN IEC 62311:2020; RCM: AS/NZS 62368.1:2022; CB: IEC 62368-1:2018