Type: Rotary or Linear

Operation: Generates digital pulses via mechanical contact (typically quadrature output A/B).

Contact Bounce: Requires debouncing (hardware RC filter or software).

Lifespan: Limited by mechanical wear (~10k–100k cycles).

Common Use: Volume knobs, menu navigation, industrial controls.

Interface: Direct MCU GPIO with pull-up resistors.

Quadrature Output: Phase difference between A and B indicates direction.

Index Pulse (Z): Optional home/reference position signal.

Mounting: Through-hole or panel mount variants available.

Key Consideration: EMI shielding and grounding recommended in noisy environments.