Hardware & Platform Architecture

VK-Series: The Complete Farm Sensor Network

Three integrated components - field sensor nodes, an edge gateway, and a cloud platform - one complete farm sensor network engineered to operate without internet, grid power, or SIM cards. Deployable at any farm, anywhere on earth.

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Topology

Farm Sensor Network Architecture

A resilient, decentralized farm sensor network - capacitive soil probes measuring dielectric permittivity, wireless nodes streaming micro-climate telemetry, and agronomy-grade data capture from the soil to the cloud dashboard.

Edge Sensor Node In Production

VK-S1 Field Unit

Each VK-S1 is configured for your specific deployment environment. Sensor parameters are selected during the proposal process based on crop type, climate zone, and research or operational requirements.

Telemetry Soil Moisture, Temp, EC, NPK*NPK derived via ML inference
Connectivity Sub-GHz LoRa mesh radio (433 / 868 MHz)
Power Solar Panel + 18650 Li-ion array
Enclosure IP65 weather-sealed polycarbonate
VK-S1 soil moisture sensor for farming - solar-powered LoRa node deployed in an Indian agricultural field

Concept render. Final product appearance may vary. Artistic licence applied.

Aggregation Gateway In Production

VK-G1 Base Station

Centralized data concentrator that aggregates packet transmissions from up to 50 localized field units over LoRa.

Core Embedded edge compute - quad-core ARM Cortex-A72
Uplink 4G/LTE Cellular & Ethernet
Max Nodes 50 active nodes per gateway
Range 3 - 5 km line-of-sight radius
VK-G1 Edge AI LoRa gateway - base station of the VK-Series farm sensor network

Concept render. Final product appearance may vary. Artistic licence applied.

Platform Layer Live

VarshaKrishi Platform

Provisioned per deployment. Real-time telemetry across all nodes, 30-day offline data resilience, multi-farm fleet management, CSV/JSON/REST API export, configurable alerts, and mobile-responsive access with no app installation required.

Architecture Next.js, Supabase (PostgreSQL)
Security Role-based access, TLS encryption
Analytics Historical trends, threshold alerts
Export CSV, REST API integrability
VarshaKrishi cloud dashboard - planned Jashpur pilot preview showing RECOMMENDED irrigation advisory and MODERATE disease risk

Dashboard preview for planned Jashpur pilot - Internal Testing Unit configuration, Chhattisgarh.

Every deployment is scoped and priced based on the number of nodes, sensor configuration, coverage area, and deployment location. There is no off-the-shelf pricing.

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Knowledge Base

Technical FAQ

Common implementation and architectural inquiries regarding the VK-Series.

Our hardware primarily relies on LoRaWAN for long-range, low-power remote connectivity, achieving effective transmission ranges of 3-5 km in rural terrains without requiring cellular infrastructure at the node level. The aggregation gateway then securely uplinks this localized data via 4G/LTE to our cloud framework.

Yes, all field sensor nodes (VK-S1) are fully solar-powered equipped with deep-cycle 18650 lithium-ion battery arrays and are capable of sustained operation independent of the grid. However, Edge Gateways (VK-G1) require standard AC grid power with optional UPS backups due to the higher computational requirements of the Cortex-A72 processor and LTE uplink.

Absolutely. The VK Cloud Infrastructure, powered by Supabase, provides a comprehensive REST API. This enables secure, programmatic data ingestion into third-party agricultural research platforms, institutional databases, and government portals utilizing standard JSON payloads.

Direct real-time NPK measurement is scientifically challenging with solid-state sensors. We utilize a proprietary edge-ML inference model that estimates macronutrient correlations based on highly accurate measurements of soil Electroconductivity (EC), moisture volatility, and soil temperature gradients.

Each VK-S1 node measures volumetric water content through capacitive sensing of the soil's dielectric permittivity, then relays readings over a sub-GHz LoRa mesh to the VK-G1 gateway. The gateway fuses soil moisture with micro-climate telemetry from the wider farm sensor network and runs on-device agronomy models to produce irrigation advisories - no internet required at the field layer.

The VK Series is offline-first: solar-autonomous wireless nodes with no SIM cards, an Edge AI gateway that keeps inferring during connectivity outages with a 30-day local buffer, and hardware field-tested in Indian monsoon and 45°C summer conditions. It is engineered specifically for agricultural research stations, KVKs, and cooperatives rather than adapted from generic industrial IoT.

Ready to Deploy?

Share your project requirements and we'll respond within 48 hours with a configuration recommendation and formal proposal.

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contact@varshakrishi.com