Introduction

The Vandyam VIoT Gateway is the communication hub of the Vandyam wireless sensor network platform — it is the device that receives data from every VIoT Node in the field (RS-485 Nodes, 4-20mA Nodes, GPS Nodes, and others) over LoRaWAN, and forwards that data onward to a cloud or on-premise monitoring platform. Where a VIoT Node is built to interface with one instrument or one type of sensor, the Gateway is built to aggregate readings from potentially hundreds or thousands of nodes spread across a large site, and carry that data back to wherever it needs to go.

The Gateway is designed for outdoor, industrial-grade deployment: it is housed in an IP67-rated ABS enclosure rated for -40°C to +70°C operation, and includes a battery backup so that data collection can continue for a period even if mains power is interrupted — a meaningful reliability feature for sites where a power cut shouldn't mean a gap in the monitoring record. For its own backhaul connection to the internet, the Gateway supports both Wi-Fi and 4G SIM connectivity, so it can be deployed in locations with existing network infrastructure as well as more remote sites that only have cellular coverage.

On the sensor-facing side, the Gateway communicates over the 865 MHz LoRaWAN band and is rated to support up to 10,000 nodes, making it suitable for genuinely large-scale deployments — industrial campuses, agricultural operations, or multi-building sites — where a very large number of sensors need to report back through a single point of aggregation. Data received from nodes is passed to a network server (Vandyam's platform runs on ChirpStack v4.x) for processing, device management, and onward delivery to the application layer.

Key Features

• Battery-backed operation — continues collecting data through short mains power interruptions
• Dual backhaul options — Wi-Fi and 4G SIM connectivity for flexible siting
• Long-range LoRaWAN coverage on the 865 MHz band
• Massive node connectivity — rated for up to 10,000 connected nodes
• IP67-rated enclosure for continuous outdoor and industrial use
• Runs on ChirpStack v4.x, a widely used open LoRaWAN network server platform

Applications

• Central aggregation point for large industrial sites with many RS-485, 4-20mA, and GPS nodes
• Agricultural deployments covering large open areas where cellular or Wi-Fi backhaul is limited
• Smart city and campus deployments requiring dense node coverage from a single access point
• Remote or defence-site deployments where 4G backhaul is the only available connection back to the network
• Sites needing power resilience — the battery backup keeps data flowing through short outages