VTM OS: Long-Range Sensing Architecture

Bridging Remote Field Intelligence with Cloud Telemetry

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🛰️ System Overview

This architecture is designed to capture high-dynamic-range light data (Lux) at a remote field site and transmit it over long distances to a central base station.

• Core Tech: Reyax RYLR998 LoRa® Transceivers.
• Master Controller: Arduino UNO Q (Gateway).

🔌 Hardware breakdown

Node A: Remote Sensor (The Transmitter)

• MCU: Arduino Nano
• Sensor: Waveshare TSL25911 (High Dynamic Range Lux Sensing)
• Communication: Reyax RYLR998
• Safety: Uses a mandatory 220/330Ω voltage divider for 5V to 3.3V logic translation.

Node B: Gateway (The Receiver)

• MCU: Arduino UNO Q (Qualcomm® QRB2210 + STM32U585)
• Bridge: Reyax RYLS135 USB-to-UART.
• Uplink: Managed via Arduino Cloud for real-time visualization.

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📡 LoRa Environmental Sensing Architecture.

graph TD
    %% Node A: Remote Sensor
    subgraph Node_A [Node A: Remote Sensor]
        TSL[TSL25911 Lux Sensor] -- "I2C (Lux Data)" --> Nano[Arduino Nano]
        Nano -- "UART (AT Commands)" --> RYLR_A[Reyax RYLR998 LoRa]
    end

    %% The Wireless Link
    RYLR_A -. "915MHz LoRa (Up to 10 Miles)" .-> RYLR_B[Reyax RYLR998 LoRa]

    %% Node B: Gateway
    subgraph Node_B [Node B: Gateway]
        RYLR_B -- "UART" --> UnoQ[Arduino UNO Q]
        UnoQ -- "USB/Serial" --> Bridge[RYLS135 Bridge]
        UnoQ -- "WiFi Uplink" --> Cloud[Arduino Cloud Dashboard]
    end

    %% Styling
    style Node_A fill:#f9f,stroke:#333,stroke-width:2px
    style Node_B fill:#bbf,stroke:#333,stroke-width:2px
    style RYLR_A fill:#dfd
    style RYLR_B fill:#dfd

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