Looking for practical Arduino projects? This guide shows how to control a relay from your smartphone using an Arduino Uno — either via Bluetooth or Wi-Fi.

Shares of Block (NYSE: XYZ) have surged after the announcement that the financial technology company will join the prestigious S&P 500 index. This milestone validates the companys ...

To be clear, Block still looks like a pure-play fintech enterprise right now. But anyone who wants to buy and hold the stock for the next 20 years must factor Bitcoin into their decision-making. Put ...