If you're into microcontrollers, you've probably heard of the ESP32. This $5 microcontroller can be easily mistaken for an Arduino with networking capabilities, but it's so much more than that. Those ...

The 555 timer is one of the most versatile integrated circuits available. It can generate PWM signals, tones, and single-shot pulses. You can even put one in a bi-stable mode similar to a flip flop.

A Raspberry Pi can feel almost limitless until a project asks it to interact with the physical world in a dozen tiny ways at once. It can run Linux, host services, serve dashboards, collect data, and ...