What it does
Whispr is a low-cost V2V system that helps prevent collisions by enabling vehicles to silently share real-time motion and hazard alerts without internet. It’s compact, energy-efficient, easy to retrofit, and designed for scalable, sustainable road safety.
Your inspiration
The idea for Whispr came from a simple question: What if vehicles could talk to each other—without the internet? Most road accidents happen because drivers don’t know what’s unfolding ahead. We imagined a system where vehicles could silently share real-time alerts about braking, swerving, or sudden stops—creating time to react and avoid collisions. That vision shaped Whispr: an offline, low-cost safety network designed to help all vehicles, not just advanced ones, communicate and protect lives—making roads safer for everyone.
How it works
Whispr is a small, easy-to-install device that lets vehicles share safety alerts with each other — without needing internet or mobile networks. It includes GPS and motion sensors to track how the vehicle is moving. If a car brakes suddenly, swerves, or stops unexpectedly, the device detects it and sends a warning message to nearby vehicles using LoRa — a long-range, low-power radio signal. These vehicles receive the alert within seconds and pass it along, creating a chain of communication across the road. Drivers get notified through a small LED screen or a connected mobile app. Whispr is designed to be low-cost, compact, and weatherproof. It works with both new and old vehicles and runs on very little power. Its plug-and-play design means it can be added to almost any vehicle with no complicated setup. Whispr builds a silent safety network between vehicles, helping prevent accidents before they happen — even in remote or offline areas.
Design process
The design process began with a core question: how can vehicles share real-time alerts without internet or expensive systems? We mapped out requirements like low power use, ease of retrofitting, and offline mesh communication. From there, we explored possible hardware components — LoRa for communication, GPS and IMU for sensing, and a lightweight microcontroller like ESP32 for processing. To visualize functionality, we created system architecture diagrams, UX mockups, and component layout sketches. We iterated on the device’s casing design, ensuring a compact, weather-resistant form that could fit discreetly into any vehicle. The interface was kept minimal to avoid driver distraction. We also ran simulations to test how data would travel across a moving mesh network and how alerts would propagate. These insights guided our approach to message structure, detection thresholds, and range optimization. The concept is now fully developed, and we’re preparing for physical prototyping and real-world testing.
How it is different
Most vehicle safety systems rely on internet connectivity, expensive sensors, or are only built into high-end cars. Whispr is different — it’s simple, offline, and built for everyone. Using LoRa, a low-power, long-range radio protocol, it creates a mesh network that allows vehicles to share safety alerts without internet, towers, or cloud servers. Unlike Tesla’s built-in systems or OEM V2V technologies still limited to luxury models or testbeds, Whispr is modular, affordable, and easy to retrofit into both new and old vehicles. It doesn’t require smart infrastructure and avoids complex installations. Its minimalist interface reduces distractions, and its low power draw makes it sustainable. Whispr democratizes road safety — giving every vehicle a voice, not just the smartest ones.
Future plans
Our next step is to build and test working prototypes under real traffic conditions to fine-tune alert accuracy, range, and power efficiency. We plan to partner with automotive and safety organizations for pilot programs in both urban and rural areas. In parallel, we aim to refine the hardware for mass production and develop an open communication standard for wider adoption. Long-term, we envision Whispr as a low-cost safety add-on in vehicles worldwide, especially in regions with limited infrastructure — making connected roads a reality, without needing smart cars.
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