Map Your Night Sky: Measure and Fix Light Pollution at Home and on Your Block
Your sky can be darker next month. Learn simple measurements, cheap tools, and neighbor-friendly fixes that cut glare and restore stars.
Ships and Planes From Your Backyard: Build Reliable ADS‑B and AIS Receivers
Turn a small antenna and a low‑cost radio into a live map of nearby aircraft and ships. A practical, clear guide for safe installs and trustworthy data.
Crowd‑Map Road Quality With Your Phone: A Practical Guide to Safe, Useful Street Data
Turn everyday drives and bike rides into reliable road quality maps using only a phone. Build a privacy‑first pipeline from sensors to clear, actionable tiles.
Clean Air Indoors, Made Simple: Sensors, Ventilation, and Filters You Can Trust
A practical, no-nonsense guide to measuring and improving indoor air quality with the right sensors, smart habits, and reliable filtration.
Hyperlocal Weather That Holds Up: Build, Site, and Calibrate a Personal Station You Can Trust
Your backyard weather is unique. Learn how to pick sensors, place them right, and turn raw readings into useful alerts and decisions.
Backyard Bioacoustics You Can Build: Detect Birds, Bats, and Frogs With Phones and TinyML
Learn how to set up simple, reliable bioacoustic recorders at home, train sound classifiers, and share wildlife data without drowning in files.
Turn Old Phones Into Useful Sensors: Practical Upcycling for Home, Garden, and Neighborhood
Don’t drawer‑ban those old smartphones. Turn them into quiet, capable sensors for noise, motion, weather, and more—with simple, safe workflows.
Neighborhood Air You Can Trust: How to Build a Reliable Community Sensor Network
Smoke, traffic, and weather change block by block. Here’s how to build a trustworthy neighborhood air‑quality network from parts to insights.