How to build your own air quality meter with a Raspberry Pi and CO2 sensor

A reliable indicator of the air quality in offices, classrooms, or living rooms is the CO2 content. In fresh air, the concentration of carbon dioxide is around 400 ppm. This stands for “parts per ...
IEEE

Environmental Variation or Instrumental Drift? A Probabilistic Approach to Gas Sensor Drift Modeling and Evaluation

Abstract: Drift is a significant issue that undermines the reliability of gas sensors. This paper introduces a probabilistic model to distinguish between environmental variation and instrumental drift ...
XDA Developers on MSN

This awesome live map of the Washington Metro makes for a cool Raspberry Pi project

Framed Washington Metro map uses Raspberry Pi Pico W and WMATA departure API to light 144 LEDs live. Laser-cut matboard masks 144 LEDs; data refreshes so you can see every train's position from home.
IEEE

Design and Implementation of CMOS-MEMS Schottky Gas Sensor With Asymmetric Metal Contacts for Performance Enhancement at Room Temperature

Abstract: The CMOS-MEMS Schottky gas sensor is designed and implemented using a standard commercially available CMOS process, along with post-CMOS processes. The proposed gas sensor consists of open ...