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

For instance, someone has brought a 1955 radio into this side of the 21st century by adding an ESP32 inside of it. Now it can pick u ...

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

Use a few Raspberry Pi boards to give your old speakers Sonos-style multi-room audio without replacing the gear you already ...

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 ...

Christina Majaski writes and edits finance, credit cards, and travel content. She has 14+ years of experience with print and digital publications. Vikki Velasquez is a researcher and writer who has ...

Investopedia contributors come from a range of backgrounds, and over 25 years there have been thousands of expert writers and editors who have contributed. Eric's career includes extensive work in ...