SmartHomeShop Docs

Technical Specifications

Pre-release documentation. CeilSense V2 has not been officially released yet. The design, specifications and firmware can still change until release. Check ceilsense.nl for the current planning.

Dimensions

  • Recessed body: Ø 74 mm
  • Cut-out: Ø 76 mm
  • Outer rim: Ø 95.5 mm
  • Cap: Ø 56.8 mm
  • Total height: 56.46 mm: 41.46 mm above and 15 mm below the ceiling surface
  • Maximum ceiling thickness: 20 mm
  • Space above the ceiling: 41.46 mm plus room for plugs and cables, about 56 mm with a straight RJ45 plug

Mounting

  • Recessed only, in a spotlight hole with spring clips
  • Connections on the ceiling side: RJ45, USB-C and mains
  • Rating: IP20, for indoor use

Power

  • Mains: 110 to 240 V, connected by a qualified installer
  • PoE: IEEE 802.3af
  • USB-C: 5 V, at least 1 A. Supply not included.

Network

  • WiFi 2.4 GHz (802.11 b/g/n)
  • Ethernet RJ45, with or without PoE

Processor

  • ESP32-C6
  • 8 MB flash

Included in the Base

  • Light: Vishay VEML6030
  • Air pressure: Bosch BMP388, 300 to 1,100 hPa, ±0.08 hPa typical
  • LED ring: 16 WS2812 RGB LEDs shining down, individually addressable, off by default
  • Buzzer: piezo buzzer
  • Radar: sockets for all radar options

Optional SCD41 Module

  • Sensor: Sensirion SCD41
  • CO2: specified range 400 to 5,000 ppm, output up to 40,000 ppm
  • CO2 accuracy: ±(50 ppm + 2.5% of reading) between 400 and 1,000 ppm
  • Temperature: -10 to +60 °C
  • Humidity: 0 to 95 %RH, non-condensing
  • Mode: low-power periodic, new values every 30 seconds, automatic self-calibration on

Radar Options

Choose one configuration. All are Hi-Link modules without a camera.

LD2412 + LD2450 LD2460 LD6002B
Modules 2 1 1
Frequency 24 GHz 24 GHz 60 GHz
Presence, also sitting still Yes Yes Yes
People tracked Up to 3 Up to 5 (3 of them still) Up to 3
Coordinates X/Y X/Y X/Y/Z
Field of view ±75° (LD2412); ±60° × ±35° (LD2450) 120° × 90° ±60° × ±60°
Range, slant 9 m presence, 6 m tracking 6 m moving, 5 m still 3 m typical, max. 6 m

Module range is not floor coverage. See Radar and Sensor Modules.

Software

  • ESPHome firmware
  • Home Assistant through ESPHome
  • Local web page on port 80
  • SmartHomeShop app through cloud firmware (planned)

Notes

  • Recessed mounting and heat from electronics influence the temperature reading. Use temperature mainly for trends.
  • LEDs that burn brightly for a long time give off some heat and can slightly affect temperature readings.