An intelligent inline router backup power system engineered to keep your internet alive through every power cut — automatically, silently, and without interruption.
In India and across developing markets, power outages are a daily reality. Your router dies the instant electricity fails — snapping your smart home, work calls, and connected devices offline in an instant. Existing UPS solutions are either massive, overpriced, or built for desktop computers — not the humble router sitting in the corner.
A power cut kills your router instantly — mid-call, mid-upload, mid-game. No warning, no graceful handoff. Just silence.
Video calls crash. Deadlines slip. Clients wait. For remote professionals, a router outage is a productivity catastrophe.
Smart lights, security cameras, door locks — all of them depend on a live network. When the router dies, the entire system goes dark.
Standard UPS units are oversized, power-inefficient, noisy, and completely unaware of what they're protecting. No monitoring, no intelligence.
Designed from the ground up for a single purpose — keeping routers alive. Compact enough to mount on a wall, smart enough to know exactly what's happening inside.
NetSure MiniUPS Pro is an intelligent inline backup power system built specifically for routers and small networking hardware. It sits between your wall socket and router — invisible during normal operation, and instantaneous when power fails.
Unlike generic UPS units, NetSure is fully aware of what it's doing. It monitors battery health in real time, manages charging intelligently, estimates remaining runtime, and communicates everything through a crisp OLED display.
The heart of the system is an ESP32 microcontroller — a capable, WiFi-ready embedded chip that handles power switching logic, sensor telemetry, display output, and future connectivity features all in one compact package.
This is not a stripped-down gadget. It's a properly engineered product designed with reliability, usability, and extensibility at its core — built by students, for real-world deployment.
NetSure MiniUPS Pro detects power failure in milliseconds and switches to battery seamlessly — no reboots, no dropped packets, no disruption. When mains power returns, it switches back and resumes charging, all without any user intervention.
Detects power loss and switches to battery in under 15 milliseconds — faster than your router can even register a blip. Zero packet loss, zero reconnection required.
Core FeatureA crisp 0.96″ OLED display shows battery percentage, estimated runtime, power mode, voltage, and system status — always visible at a glance.
Real-TimeContinuous voltage and current sensing feeds a runtime estimator that accurately predicts how long backup power will last under current load conditions.
ESP32 PoweredThe ESP32's built-in WiFi opens the door for wireless telemetry, web dashboards, and push alerts — all planned for upcoming firmware releases.
Coming SoonPower management, sensing, control, and display are cleanly separated into logical subsystems — making it easy to upgrade, swap, or extend individual components.
ExtensibleAdaptive charging logic prevents overcharge, deep discharge, and thermal stress — extending battery service life far beyond what a simple charger could achieve.
Protection SystemNetSure is structured around five tightly-integrated subsystems. Each handles a specific responsibility — working together to deliver seamless backup power with full situational awareness.
The power path is designed for efficiency and redundancy. Mains power charges the battery and simultaneously powers the router output — with seamless battery takeover on failure.
The ESP32 is the intelligence layer — reading sensors, running logic, driving the display, and managing state transitions across the system lifecycle.
NetSure's monitoring layer provides complete visibility into system state — from the physical OLED on the device to future remote dashboards.
NetSure MiniUPS Pro is currently in active development. The architecture is defined, the PCB layout is underway, and firmware modules are being built and tested on evaluation hardware. Every step is being documented openly.
We're building this the right way — architecture first, hardware second, firmware third. No shortcuts, no untested assumptions. Every decision is documented and reversible. The goal is a product that works first time, every time.
NetSure is designed to grow. The hardware architecture anticipates future expansion, and the ESP32's onboard WiFi unlocks a whole layer of smart features that will come through firmware updates.
Full system architecture defined. Block diagrams, subsystem contracts, component selection, and schematic design completed.
PCB layout routing underway. Firmware modules for power state management and OLED display active on evaluation hardware.
First PCB fabrication run, full assembly, lab testing of failover timing, battery protection, and display accuracy under real load.
Local web dashboard served over WiFi. Push notifications for power failure events, low battery warnings, and charge completion.
Predictive battery health modelling, anomaly detection, long-term trend analysis, and optional cloud sync for multi-site deployments.
Extended capacity variants for higher-load networking gear. Modular battery swap design for easy replacement and capacity upgrades.
A dedicated companion app for iOS and Android. Monitor your router's backup status from anywhere, receive instant alerts, and review power event history — all from your phone.
Machine learning models trained on your battery's discharge patterns to predict failures before they happen, optimise charging schedules, and extend cell longevity through intelligent management.
Optional cloud sync for multi-site deployments — ideal for offices, clinics, or any environment running multiple networked locations. One dashboard, complete visibility.
Configurable notifications via WhatsApp, Telegram, email, or webhook. Know the instant your power fails — before anyone even notices the internet is down.
Hot-swappable, standardised battery modules that can be upgraded without tools. Scale from 3.6 Ah to 10+ Ah as your needs grow — without replacing the whole unit.
Native support for Home Assistant, Google Home, and Matter — turning NetSure into a smart home power sensor that can trigger automations, scenes, and alerts on power events.