Mini IO brings several everyday interface parts onto one breadboard-friendly module: a 0.42-inch OLED, two push-button rotary encoders, a latching switch, a buzzer and a WS2812B LED. The combination makes it possible to prototype input, visual feedback and sound in the same compact assembly.
The rotary controls provide rotation and push inputs, while the OLED can show values or menus. The switch, buzzer and RGB LED add distinct ways to control and report state, leaving the surrounding application to the user's controller.