Which Arduino board is best for beginners?

Getting started with Arduino can feel quite overwhelming at first because you're faced with the decision of what board to buy ...
EDN

Ignoring the regulator’s reference redux

Christopher Paul reviews Steve Woodward’s “Ignoring the regulator's reference” with a few minor tweaks to optimize ...
Hackaday

SigCore UC: An Open-Source Universal I/O Controller For The Raspberry Pi

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

Contactless Payment Explained: Benefits, How It Works, and Key Examples

Julia Kagan is a financial/consumer journalist and former senior editor, personal finance, of Investopedia. Somer G. Anderson is CPA, doctor of accounting, and an accounting and finance professor who ...