The Arduino IDE is great for being able to dive right in and spin up a sketch quickly with a minimum of fuss. However, there are some situations where you want to get a little “closer to the metal” – without some of the limitations that come with that ease-of-use. Maybe you want to use […]
A waveform generator is a handy little tool for stimulating and testing electronic components and assemblies. Any work with filters, amplifiers, or other frequency-sensitive designs can benefit from the insights gained through a controlled signal input. Here’s how to make one for about $30.
The Atmel ATtiny85 is capable little 8-bit microcontroller that plays very well with the Arduino ecosystem. It also comes in a compact and maker-friendly 8-pin Dual Inline Package (DIP), operates on 5V, and costs less than two dollars – making it a great option for controlling some WS2812b RGB LEDs (aka “neopixels”.)
The DS3231 Real Time Clock breakout keeps extremely accurate time, has a battery backup, and only costs a few dollars. Combine it with just about any microcontroller, a display, plus a simple stand, and you have a custom precision clock that can sit on your desk and satisfy your timing needs in a visually-unique way.
Let’s face it – using keyboard shortcuts tends to be a lot faster than drilling down through context menus, but memorizing the special key combinations can be a pain. Special-purpose key pads such as Stream Decks solve this problem, but come at a premium price. The good news is that it is easy to make […]