Proof of Usefulness Report

polluSensWeb - connect any UART pollution sensor via COM port

Analysis completed on 2/9/2026

+46
Proof of Usefulness Score
You're In Business

polluSensWeb is a practical, niche open-source tool leveraging the Web Serial API to simplify air quality monitoring for students and enthusiasts. While it solves a genuine friction point (eliminating driver installation for sensors), it is currently in a very early stage with minimal traction and a small user base (~100 users). It scores well on utility and technical implementation relative to its scale but lacks the commercial impact or broad reach to score higher against the calibration baseline.

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Score Breakdown

Real World Utility+18.75
Audience Reach Impact+3.00
Technical Innovation+9.75
Evidence Of Traction+5.00
Market Timing Relevance+6.00
Functional Completeness+4.50
Subtotal+47
Usefulness Multiplierx0.98
Final Score+46

Project Details

Project URL
pollutants.eu/sensor
Description
polluSensWeb is a simple, no-fuss tool for reading and plotting data from UART air quality sensors—like PM2.5, C02, and similar stuff. It runs straight in your browser, so you don’t need to install anything. Just plug in your sensor, open the page, and go. You can load custom JSON configs for different sensors, parse raw binary frames (yes, with checksum control), and see live charts update in real time. Everything runs locally; you may not have an internet connection.
Audience Reach
100, mostly students
Target Users
Any environment monitoring enthusiast. You may measure by multiple sensors in parallel, just using several browser tabs, and store the history. Web integration might be easily done via webhooks.
Technologies
Other, Chart.Js
Traction Evidence
https://github.com/WeSpeakEnglish/polluSensWeb https://pollusensweb.pages.dev/ https://wespeakenglish.github.io/polluSensWeb/

Algorithm Insights

Market Position
Growing utility with room for optimization
User Engagement
Documented reach suggests active user community
Technical Stack
Modern tech stack aligned with sponsor technologies

Recommendations to Increase Usefulness Score

Document User Growth

Provide specific metrics on user acquisition and retention rates

Showcase Revenue Model

Detail sustainable monetization strategy and current revenue streams

Expand Evidence Base

Include testimonials, case studies, and third-party validation

Technical Roadmap

Share development milestones and feature completion timeline