A 2-pin rotary encoder therefore needs four resistors. Four resistors make up a 2-bit R-2R DA converter. Pull-up resistors are required too, otherwise there is no voltage to convert. Such a circuit ...

3. Default Pin Configuration and Power Saving By default, the RotEncoder class uses digital pins 2 and 3 on the Arduino Nano (or similar boards) for rotary encoder inputs. These pins support ...

Rotary encoders are pretty interesting pieces of technology. They’re a solid way to accurately measure rotation including the direction. [David] recently wrote some software to handle these i… ...

SmartEncoder Arduino friendly, serially addressable, ATTINY85 based rotary encoders. Reduce the pin count from 3 * n where n is the number of encoders (pins A, B and button C) to 2 total. Serial in, ...