Add SmartHomeShopIO CeilSense to devices.esphome.io (#1271)

Co-authored-by: Jesse Hills <[email protected]>

Author: dwainscheeren

src/docs/devices/SmartHomeShopIO-CeilSense/ceilsense-bottomview.png

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+---
+title: SmartHomeShopIO Ceiling-mounted All-in-One Sensor (CeilSense)
+date-published: 2025-11-03
+type: sensor
+standard: uk,us,eu,au,global
+board: esp32
+project-url: https://github.com/smarthomeshop/ceilsense
+made-for-esphome: true
+difficulty: 1
+---
+
+![CeilSense](ceilsense-topview1.png "CeilSense")
+
+## Description
+
+**CeilSense** is a recessed, all-in-one smart room sensor for ceilings (and walls) that combines
+**24 GHz mmWave presence (HLK-LD2412)**, **ambient light (BH1750)**, **barometric pressure (BMP3xx)**, optional
+**CO₂/Temperature/Humidity (SCD41)**, plus a ring of **16 individually addressable WS2812 RGB LEDs**.  
+Power it via **110–240 VAC**, **USB-C (5 V)**, or **PoE Ethernet**. It fits a **standard 68 mm** (GU10) cut-out;
+visible trim ring ≈ Ø 82 mm.
+
+### Highlights
+
+- Reliable **presence detection** (micro-motion) with **HLK-LD2412**
+- **BH1750** ambient light + **BMP3xx** pressure (always present)
+- **16× WS2812** status/ambient ring
+- **Complete** variant adds **SCD41 CO₂/Temp/Humidity**
+- **Wi-Fi or Ethernet (PoE)** firmware variants; **OTA** with ESPHome
+- Fully **local** and **open source**; maintained in the **CeilSense** GitHub repo
+
+### Specs at a glance
+
+- Cut-out: **68 mm**, install depth ≈ **45 mm** (allow ~+15 mm with RJ45 plug)
+- LEDs: **16× WS2812**, individually addressable
+- Radar: **HLK-LD2412** (24 GHz), tuned ESPHome config
+- Sensors (Basic): **BH1750** (illuminance) + **BMP3xx** (pressure) + **LD2412** (presence)
+- Sensors (Complete): **Basic + SCD41** (CO₂/Temp/Humidity)
+
+## Variants
+
+- **CeilSense Basic** — LD2412 + BH1750 + BMP3xx + 16× RGB ring
+- **CeilSense Complete** — **Basic + SCD41** (CO₂/Temp/Humidity)
+
+> Ethernet/PoE builds are separate YAMLs. Flash the **Ethernet** variant if you plan to use Ethernet (with or without PoE).
+
+## Quickstart
+
+1. **Install** the device in a **68 mm** cut-out; connect mains or USB-C; optionally RJ45 for PoE.
+2. **Onboard**
+   - **Wi-Fi** builds: join CeilSense AP → provide Wi-Fi credentials of your network → appears as **Discovered** in
+     Home Assistant.
+   - **Ethernet** builds: plug UTP → gets DHCP → appears as **Discovered** in Home Assistant.
+3. **Adopt** in ESPHome / Home Assistant and tune (radar thresholds, LED effects).
+
+> Please check our full documentation and Quick Start Guide: <https://smarthomeshop.io/quick-start-ceilsense>
+
+## Support & Links
+
+- [Shop](https://ceilsense.nl/en)
+- [GitHub](https://github.com/smarthomeshop/ceilsense)
+- [Wiki](https://docs.smarthomeshop.io/)
+- [Discord](https://smarthomeshop.io/discord)
+- [YouTube](https://www.youtube.com/@smarthomeshop-io)
+
+## Gallery
+
+| Top view                            | In-ceiling (cut-out)                           |
+| ----------------------------------- | ---------------------------------------------- |
+| ![Top view](ceilsense-topview1.png) | ![In ceiling](ceilsense-in-ceiling-cutout.jpg) |
+
+| Bottom view                              |
+| ---------------------------------------- |
+| ![Bottom view](ceilsense-bottomview.png) |