Technical Specifications
Pre-release documentation. CeilSense Pro 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 90 mm
- Cut-out: Ø 92 mm
- Outer rim: Ø 115 mm
- Total height, recessed: 56.55 mm: 28.6 mm above and 27.95 mm below the ceiling surface
- Surface-mounted: Ø 90 mm × 59.15 mm high
- Maximum ceiling thickness: not published yet, it follows at release
- Space above the ceiling, recessed: 28.6 mm plus room for plugs and cables
Mounting
- Recessed in a cut-out with spring clips
- Surface-mounted on a mounting plate, concrete included
- Connections on the ceiling side: RJ45, USB-C and mains
- Use: indoor only
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-S3
- 16 MB flash
- 8 MB PSRAM
Built-In Sensors
- Light: Vishay VEML6030
- Air pressure: Bosch BMP388, 300 to 1,100 hPa, ±0.08 hPa typical
- Temperature and humidity: Sensirion SHT45
- VOC and NOx: Sensirion SGP41, index from 1 to 500, not ppm
- CO2, temperature and humidity: Sensirion SCD41
- Radar: sockets for all radar options
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
- Planned mode: low-power periodic, new values every 30 seconds, automatic self-calibration off, pressure compensation from the BMP388
Optical Smoke Sensing
- Sensor: Analog Devices ADPD188BI, with blue and infrared light
- Status: experimental, not EN 14604 certified, no life-safety function
Light and Sound
- LED ring: 16 WS2812-type RGB LEDs, individually addressable, off by default
- Buzzer: piezo buzzer
- Speaker: with MAX98357 amplifier, for music, MP3 files and spoken announcements through Home Assistant
- Microphone: digital microphone for Home Assistant Assist
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
All of this is planned. The firmware for the final CeilSense Pro is not written yet.
- ESPHome firmware, published at release
- Home Assistant through ESPHome
- Local web page on port 80
- SmartHomeShop app through cloud firmware
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.