The Knob G Click Board™ features a combination of high-quality quadrature rotary encoder, and a LED ring composed of 24 individual green LEDs. Outputs of the rotary encoder are processed by a debouncing circuitry, which ensures reliable switching action, making the encoder directly usable in interrupt service routines (ISR) without the need for a bulky debouncing code. The 24-segment LED ring is driven by an advanced and flexible LED driver IC, which can dim each LED individually, allowing various lighting effects to be programmed. The LED ring is independent of the encoder, and it can be used as a very flexible position or value indicator.