Thus, the output of the “set/reset” circuit (DIR, U2, pin 6) indicates the direction that the rotary encoder is turned. As mentioned previously, each pulse is delayed by the low-pass filter R1 ...

This is necessary because inside the rotary encoder two pieces of metal contacts touching each other in an imprecise way as in the case of a mechanical switch, and this will manifest itself as missed ...

Elma Electronic Inc. now offers a miniature rotary encoder that includes an illuminated 8+1 joystick, enabling seamless, accurate control using just one finger.