I woke up with a headache, looked outside, and saw it was raining (I don't describe opening the curtains, but I'm the type ...

A fifteen-day field trial in Bahir Dar, Ethiopia showed a GPS-and-gyroscope dual-axis solar tracker built for under 100 ...

The Arduino USB Camera puts a camera, microphone and adjustable ring light in one USB accessory for projects that need to see ...

Build a DIY ESP32 LoRaWAN sensor node to track garden temperature and humidity from up to 600 meters away. Includes PCB ...

Trees are swallowing prairies. Rivers are losing their fish. And stars are disappearing from view. Humans broke the environment — but we can heal some of the damage. Up From Dust is a podcast about ...

Indoor air quality dataset from a low-cost ESP32 + MP-135 + DHT22 monitor (Dhaka, Oct–Nov 2026) - masumkawsar99/indoor-air-quality-esp32-dataset ...

Continuous glucose monitors have become popular among people who have diabetes and those who need to track their glucose levels. These devices are painless and can easily sync up to an app on your ...

Optical sensors are a broad class of device for detecting light intensity. This can be just a simple component for notifying when ambient light levels rise above or fall below a prescribed level, or a ...

EPA has established air sensor loan programs independently and through collaborations with libraries, tribes, museums, and others to enable the public to learn about air quality in their communities.

Low-cost air pollution monitors use one or more sensors and other components to detect, monitor and report on specific air pollutants like particulate matter (PM) or carbon dioxide and/or ...