Compared to the Arduino Uno of old, modern microcontrollers are absolutely tiny — especially for the amount of processing power and I/O you get. But if you need something really small, like ...

Keypad phones, believe it or not, are still in use, and there is a surprising amount of variety to choose from. Some of the phones include 4G connectivity, cameras, and are built to last. If you're ...

Gaming keypads are an interesting sub-category of gaming keyboards. They are not widely used devices, but those who do use them absolutely swear by them and they are one of the more interesting ...

This library is not maintained. It was my first 'popular' Open Source project, and brought MQTT to the Arduino platform just as both were gaining popularity. But times have changed, and I haven't ...

We know that LED bulbs save money over time, but they can be expensive initially. Luckily, there are lots of ways to get LED bulbs and energy conservation kits absolutely free. My electric company, ...

Many people believe that the LED was discovered by US researchers working in the 1960s. In fact, Henry Round at Marconi Labs noted the emission of light from a semiconductor diode 100 years ago and, ...

We independently review everything we recommend. When you buy through our links, we may earn a commission. Learn more› By Jon Chase Jon Chase is an editor of smart-home coverage. For Wirecutter, he ...

When people ask for recommendations for home security, one of my first suggestions is always a smart lock. Sure, your door already has a lock, probably a basic deadbolt, but it could be upgraded in so ...

The iPad is getting ever more powerful, and whether you’re on an iPad, iPad Air, or iPad Pro, a good keyboard can transform your tablet into a rival for a conventional MacBook laptop. Apple sells two ...