[hw640] has put together a well written and detail packed explanation of how to interface with a digital rotary switch. These digital opto encoders have just two outputs with four possible logic ...

When you need to make very tiny measurements, even noise in closed relays can throw you off. [Marco] was able to observe this effect and wanted to build a switch that didn’t have this problem. He ...

Elma Electronic recently revealed the multi-function MR50 0.5-inch rotary switch for harsh environments. Suited for space-constrained handheld and mobile devices, the rotary switch offers precision ...