What it does
WiFi signals bounce around a room, and people moving or breathing change them in small, measurable ways. RuView reads these changes using low-cost ESP32 boards (tiny programmable circuit boards) and turns them into information, such as whether someone is there, how many people there are and what they are doing.
Its makers say it can sense presence through walls, estimate breathing and heart rate without contact, notice falls and track sleep. It works with Home Assistant and can appear in Apple Home, Google Home and Alexa. Everything runs on local hardware, with no cloud or cameras needed.
The README is open that some parts are still experimental: health readings from devices are labelled as unvalidated, and some features have so far only been tested on simulated data. An AI helper can guide you through setting up and calibrating the sensors.
Who it's for
Smart-home hobbyists, tinkerers and researchers interested in camera-free sensing.
Can I use it without coding?
Developers only. You need to buy ESP32 sensor boards, load software onto them and use command-line tools; it's aimed at technical hobbyists. New to this? Start here.
Can I run it?
- Cost
- FreeNothing to pay or sign up for.
- Privacy
- Runs on your own device: your data stays with you
- API key
- Not needed
Try it
Using Claude Code, Cursor or another AI coding assistant? Paste the prompt and it will walk you through the setup.New to this?
Before you install
- Only download from the official GitHub page. Copies with similar names exist for many popular projects.
- License (MIT): Very permissive: free to use, change and share, including for business.
- More on staying safe
Where people are talking about it
- Top trending repo claims to detect movement via WiFi, yet no one can run itHacker News · Mar 2026