Editor’s note: In this Design Idea (DI), contributor Bonicatto designs a digital filter system (DFS). This is a benchtop filtering system that can apply various filter types to an incoming signal. The ...

FastMap replaces the Arduino map() function which does integer mapping. The result of integer mapping is that the (internal) division truncates and looses precision. Another problem possible problem ...

In this video, I show you how I built a custom puzzle box powered by Arduino with a fully wooden enclosure and components.

Arduino is probably the first thing that comes to mind for most hobbyists and students when they think about embedded systems. It has certainly gained its name among the electronics community, and in ...

Counties are colored red or blue when the % expected vote reporting reaches a set threshold. This threshold varies by state and is based on patterns of past vote reporting and expectations about how ...

Recently, [Jeff Geerling] dropped into the bad press feeding frenzy around Sipeed’s NanoKVM, most notably because of a ‘hidden’ microphone that should have no business on a ...

Maps can be drawings or models. They can help you find where you are and where you are going. They show symbols (pictures) for places such as car parks or places of worship like churches. They also ...

Since Philadelphia is arranged on a grid system, the mostly one-way roads are easy to navigate. Helpful maps are posted along street corners across the city – watch for the "Walk! Philadelphia" signs ...

[Sean Boyce] has been busy building board games. Specifically, an electronic strategy boardgame that is miraculously also compatible with Settlers of Catan. [Sean’s] game is called Calculus. It’s ...

This library utilizes any Arduino pins to be used as AD9851 control pins. This will gives you flexibility to use or to reserve any Arduino pins for other functions. The drawback, the frequency update ...