Room State
Shows whether the room looks quiet, disturbed, or changed compared with its recent baseline.
Camera-free room awareness
RippleGuard
A simple room privacy monitor that uses the RippleNode One ESP32 device to watch wireless signal disturbance and show quiet, movement, entry-like change, and still-presence proxy events.
Local-first · No camera · ESP32 hardware · Browser dashboard · CSV export
What the user gets
A privacy monitor for spaces where cameras feel wrong.
Protected Zone
Lets a user calibrate areas such as a doorway, desk, cabinet, bed, or window and watch likely disturbance zones.
Local Dashboard
Streams to a browser app on the local network with live charts, event cards, and CSV export.
Cheap First Build
Designed around one ESP32 Wi-Fi/BLE SoC, USB power, a status LED, and a calibration button.
How it works
RippleGuard compares live wireless patterns to a calm-room baseline.
- 01
Place
Put RippleNode One near a router, doorway, cabinet, desk, or protected path.
- 02
Baseline
Keep the room still while RippleGuard learns the normal signal pattern.
- 03
Calibrate
Stand in each important zone once so the app can learn rough fingerprints.
- 04
Monitor
Review movement likelihood, confidence, likely zone, and event history.
Prototype boundary
Room privacy signal estimate, not imaging.
RippleGuard does not image people, identify people, or scan inside the body. It estimates room-level wireless disturbance patterns for experimentation and privacy monitoring trials.
The manufacturable target is a compact plug-in room node that works near an existing Wi-Fi router to keep total system cost low.
View Device BlueprintPrototype trial
Test RippleGuard with ESP32 hardware.
Use the public dashboard in demo mode first, then connect the local bridge when the ESP32 sketch is ready.