Neruppu

Neruppu (Tamil for Fire) is a modern, high-security Android application that turns your device into a sophisticated physical monitoring system. Built on the legacy of "Haven," Neruppu is redesigned from scratch using the latest Android technologies to provide an air-gapped, privacy-first security solution.

Key Features

- Intelligent Guarding: Monitor your environment using the camera, microphone, and motion sensors simultaneously. - Visual Evidence: High-speed motion analysis using CameraX captures photos when movement is detected. - Acoustic Bursts: Real-time microphone tracking automatically records audio clips when sudden noise occurs. - Matrix Alerts: Receive real-time alerts on any device using the Matrix protocol (configurable in settings). - Privacy First: Strictly offline-first architecture with encrypted configuration storage. - Smart Storage Management: Clear your security logs and physically wipe associated media files from storage with a single confirmation. - Unified UI/UX: A modern, Jetpack Compose interface with a consistent design language across all screens. - Persistent Monitoring: Robust Foreground Service ensures continuous protection even when the app is in the background.

Screen-by-Screen Breakdown

1. Home - The Dashboard

The command center. Toggle monitoring with the "Start Guarding" button. View real-time sensor levels (Luminosity, Sound dB, Motion) and a live activity preview.

2. Events - The Evidence Log

Review all security triggers in a unified, modern list.

- Filter: Quickly filter between Motion, Sound, or Light events. - Review: Expand items to view high-quality photos or listen to captured audio. - Safe Clear: Delete logs with an optional toggle to physically wipe the media files from your device.

3. Settings - Calibration & Matrix

Fine-tune your security environment.

- Sensor Toggles: Enable/Disable specific sensors. - Sensitivity Sliders: Adjust motion and sound thresholds to minimize false positives. - Matrix Configuration: Detailed setup for receiving remote notifications.

Matrix Configuration Guide

To receive alerts on your primary phone or computer:

1. Create a Room: On your Matrix client (e.g., Element), create a new private room. 2. Get Credentials: - Homeserver URL: e.g., https://matrix.org. - Room ID: Found in Room Settings -> Advanced (looks like !abc123:matrix.org). - Access Token: Found in your User Settings -> Help & About (Advanced). 3. Configure: Enter details in Neruppu Settings and tap Save Config. 4. Verify: Use the Test Connection button to confirm setup.

License

GNU General Public License v3.0