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polluSensWeb Wiki

polluSensWeb is a free, open-source, browser-based tool that connects to UART air-quality sensors through the Web Serial API, parses their binary frames, and plots the readings live — no drivers, no installs, no servers.

👉 Live app: https://wespeakenglish.github.io/polluSensWeb/

Start here

If you want to…	Read
Plug in a sensor and see data in 5 minutes	Getting Started
Check whether your sensor is supported	Supported Sensors
Learn what every button does	User Interface
Describe a new sensor in JSON	Sensor Configuration Reference
Reuse an existing sensor definition	Inheritance
Handle sensors that need init / polling sequences	Multi-Command Sensors
Walk through adding a sensor end-to-end	Adding a New Sensor
Use a Sensirion SEN55 over UART (undocumented protocol)	SEN5x UART Protocol
Push readings to a server or dashboard	Webhooks
Run your own copy	Self-Hosting and Local Use
Fix a problem	Troubleshooting and FAQ

Key features

Live serial acquisition with frame detection (start/end bytes, length, byte-stuffing)
Checksum validation using JavaScript expressions
Multi-command sequences for sensors that must be polled or initialised
Multiple live charts with per-signal colour, thickness and smoothing
Full CSV export (timestamp + all signals)
Webhooks with templated headers and body
Custom sensor definitions loaded from your own JSON file
Works offline once loaded (except webhooks)