Hi all,
I’ve been working on bringing the Sensy-One S1 Pro Multi Sense to Homey and wanted to show where it stands.
The S1 Pro is a compact mmWave presence sensor (Hi-Link LD2450 radar that tracks up to 3 people with their positions) with a BME688, an SCD40 CO₂ sensor and an LTR390 light sensor. Out of the box it only works with Home Assistant. I now have it running as a native Homey device.
What it can do so far
- Presence that also works when you sit still, exposed as
alarm_motion, so Homey zone activity works too. Plus movement and the number of people in the room - Air quality and climate: temperature, humidity, CO₂, air quality (IAQ), pressure, lux and UV
- Zones: up to 3 zones plus an exclusion zone. Every zone you draw gets its own presence, movement and people capabilities
- Zone editor in Homey: you see people moving live on a top-down map, tap to place the corners of a zone and drag them to adjust
- Dashboard widget with a live radar view: people as moving dots, zones light up on presence and movement
- Flow cards, for example “someone entered zone 1”, “zone 2 became empty”, “movement started in zone 3”, “number of people is above 1”
- Finds the sensor automatically on the network and follows it when its IP address changes
How it works
The app talks directly to the sensor over the ESPHome native API on the local network. No Home Assistant, no MQTT broker, no cloud.
The sensor runs a slightly adjusted firmware, based on Sensy-One’s own config. On the ESP32-C3 the original firmware ran out of memory in my setup, which caused drop-outs. Removing the Bluetooth stack and a few other things made it stable.
Status
Work in progress and running daily in my own home. It’s an unofficial community project, not affiliated with Sensy-One.
I’ll be looking for testers later. If you own an S1 Pro and a Homey Pro and would like to help, reply here and I’ll get back to you when it’s ready.
Feedback and ideas are welcome in the meantime!
