The lamp’s color temperature and brightness are set with a rotary encoder / push button combo switch, and the LEDs themselves are controlled via PWM. All things considered, it’s a rather ...

I want to expand this particular project to support four or five rotary encoders. I have an idea of creating a small box that could sit on a coffee table and give access to the various lights within a ...

The black knob to the left lets him adjust the output of a variable voltage regulator. To the lower right there’s a rotary encoder, push button, toggle switch, and a couple of potentiometers.

Elma’s E18 rotary encoder comes in through-hole and surface-mount versions in the 14.4 x 11.4 x 6.5mm body size. Rotational life is up to 150,000 revolutions, according to distributor Foremost, which ...