A reliable indicator of the air quality in offices, classrooms, or living rooms is the CO2 content. In fresh air, the ...

Raspberry Pis and Home Assistant are a match made in heaven. The former is great at sensing the world around it and collecting data, and the latter is amazing at taking in data, making decisions, and ...

Seeed Studio sent us a review sample of the XIAO Soil Moisture Sensor powered by the XIAO ESP32C6 wireless module and running ...

Recently, [Edward Schmitz] wrote in to let us know about his Hackaday.io project: SigCore UC: An Open-Source Universal I/O ...

The Philippine Embassy in Washington said the United States government has not made any policy changes regarding dual citizenship amid a proposed Senate bill ending it. In a statement, the embassy ...

When your vaginal pH level is off, you may experience unusual odors, itchiness, and general discomfort, as well as yeast or bacterial vaginosis (BV) infections. Taking pH balance pills may help ...

Top VPNs give out steep discounts on their long-term plans — see where you can save the most. The best streaming deals: Get 50 percent off MasterClass subscriptions, plus save on Starz, Audible, ...

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 ...

While fluorophore-biomacromolecule systems are relatively well known, afterglow luminophore-biomacromolecule conjugates/complexes are rarely studied. Here, the authors report the development of a ...