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Arduino's new DIY electronics starter kit has an UNO R4 board

A rduino boards are a popular choice for DIY electronics, but it's not always clear how to get started with building projects ...
IEEE

Temperature-Modulated UV-Enhanced SnO

Abstract: This article presents a low-power, temperature-modulated gas sensor cell based on tin dioxide, aimed at improving the selectivity of single-material metal oxide gas sensors. This gas sensor ...