Sometimes, all the buttons you have at your disposal to control a computer fall short of the convenience a twirly little knob ...

Do you have a knob on your mechanical keyboard but aren't sure what to use it for? Here are a few different options to make ...

Is it really possible to build a rotary encoder out of a flattened tin can and a couple of photodetectors? Sure it’s possible, but what kind of resolution are you going to get from such a ...

He ended up building his own magnetic rotary encoder which is shown above. At the heart of the system is an AS5043 magnetic rotary sensor. The chip, which runs from $6.50-$11, can detect and ...