Did you read our explainer on display technologies? If so, you'll already be well aware of the concept of PPI, or "pixels per inch," which is a more informative measure of "display resolution" than a ...

So you've already outgrown Arduino's most beginner-friendly board, the Uno, and are looking to move on to bigger, more exciting projects. In that case, the Nano family might just be what you need.

How researchers are pursuing the manufacturability of arrays of micro-optical devices. How one team is roll-printing micro-LED arrays. How another team is growing nano-LEDs using perovskite materials.

For years, there has been a clear distinction between the Arduino and Raspberry Pi boards. There are some things the Arduino can do that the Raspberry Pi can't, and vice versa. When you think of ...