Add smooth, hands-on control to your DIY electronics projects with the KY-040 360° Rotary Encoder Module. Designed for compatible Arduino and development-board applications, this compact HW-040 module operates at 5V and features a 20-pulse rotary encoder with a convenient knob cap. Its PCB and brass construction makes it a practical choice for menu navigation, parameter adjustment, volume-style controls, robotics projects, and interactive prototypes. Compact at approximately 31 × 29 × 19mm, it is an easy-to-integrate module for makers, students, and electronics enthusiasts.
