Before the Raspberry Pi came out, one cheap and easy way to get GPIO on a computer with a real operating system was to ...

Raspberry Pis are extremely versatile tools that can function in a variety of ways depending on your needs, such as a flood ...

Most of us first hear about the irrational number π (pi)—rounded off as 3.14, with an infinite number of decimal digits—in school, where we learn about its use in the context of a circle. More ...

What if you could carry the entirety of Wikipedia in your pocket, ready to access without a single bar of Wi-Fi or a hint of cellular signal? Picture a remote classroom in a rural village, a disaster ...

Walnut Pi 2B is a single board computer (SBC) powered by an Allwinner T527 octa-core Cortex-A55 SoC with a built-in 2 TOPS AI accelerator that closely follows the Raspberry Pi 5 design for ...

The task of ensuring that every single pad in a rectangular matrix comes into contact with its opposite number precisely, without any dirt or oxidation, during the manufacturing process was not ...

Getting the hang of through-hole soldering is tricky for those of us tinkering at home with our irons, spools, flux, and, sometimes, braids. It’s almost reassuring, then, to learn that through-hole ...

The pin, worn by the chairman of the F.C.C., raises some questions. By Vanessa Friedman The author has covered political image-making and its influences since Bush v. Gore, including Volodymyr ...

The Library Company reading room on Juniper Street in Philadelphia c. 1935, one of the group’s main locations from 1880 to 1935. The Library Company of Philadelphia Founding father Benjamin Franklin ...

Yesterday we wrote about using quantum sensors for brain-computer interfaces (BCI) and other biomedical applications. But that’s the future, and if you want to experiment with brain-computer interface ...