Off-Grid Sensor Network
Monitor environmental hazards and resources without external infrastructure.
Project Summary
- **Network Type:** Low-Power Mesh (LoRa/Wi-Fi AP mode).
- **Key Metrics:** Temperature, Humidity, Air Quality, Radiation (Optional).
- **Hardware:** Raspberry Pi Zero W (Nodes), Raspberry Pi 4 (Hub), various I2C sensors.
- **Data:** Stored locally on the Pi, accessible via web browser.
Intelligence is Survival
The Off-Grid Sensor Network provides the essential, real-time data needed to make informed decisions about resource allocation, safety, and environmental changes. The use of low-power Pi Zero nodes allows for distributed, long-term monitoring.
Key Network Features
Small, battery-powered Raspberry Pi Zero W units are deployed as **Sensor Nodes**. Each node gathers data from its attached sensors and transmits it wirelessly to a central **Pi Hub** (typically a Pi 4 or 5) for collection and analysis.
The Pi Hub serves the local web dashboard and provides power to high-draw components.
The system supports a variety of standard **I2C and SPI sensors**, allowing customization based on threat models:
- **BME280/BMP180:** Temperature, Humidity, Barometric Pressure.
- **MQ-Series:** Air Quality (CO/Methane detection).
- **Geiger Counter (e.g., LND 712):** Radiation levels (crucial for CBRN scenarios).
- **Water Level Sensors:** For monitoring cisterns or flood risk.
All data is stored locally on the Pi Hub's SD card or an attached USB drive. The system uses a captive **Wi-Fi Access Point (AP) mode** for connection, requiring no external network. This keeps critical sensor readings isolated and secure from outside access.
Components & Hardware Checklist
Begin Monitoring Your Environment
Check our step-by-step guides for sensor calibration and network setup.
Go To Installation Guides